Airworthiness Directives; Bombardier, Inc., Airplanes, 26548-26556 [2019-11956]
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Federal Register / Vol. 84, No. 110 / Friday, June 7, 2019 / Rules and Regulations
void, or if the sealant exceeds 0.026 inch
(0.66 mm), does not extend over the roll
staked lip by 0.030 inch (0.76 mm) or more,
or is not clear of the bearing ball, before
further flight, replace the bearing.
(2) For pitch link assembly part number (P/
N) 429–012–112–101, 429–012–112–103,
429–012–112–101FM, and 429–012–112–
103FM, within 200 hours TIS following the
initial inspection required by paragraph (f)(1)
of this AD, or if the hours TIS of a pitch link
assembly exceed 250 hours TIS or are
unknown, at the next 50-hour-TIS inspection
required by paragraph (f)(1) of this AD:
(i) Replace each bearing P/N 429–312–107–
103 with a date of manufacture before
January 13, 2015, with a bearing P/N 429–
312–107–103 that was manufactured on or
after January 13, 2015.
(ii) Using a white permanent fine point
marker or equivalent, re-identify the pitch
link assembly:
(A) Re-identify P/N 429–012–112–101 and
429–012–112–101FM as 429–012–112–
111FM.
(B) Re-identify P/N 429–012–112–103 and
429–012–112–103FM as 429–012–112–
113FM.
(iii) Apply a coating of DEVCON 2–TON
(C–298) or equivalent over the new P/N.
(g) Special Flight Permits
Special flight permits are prohibited.
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(h) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Safety Management
Section, Rotorcraft Standards Branch, FAA,
may approve AMOCs for this AD. Send your
proposal to: David Hatfield, Aviation Safety
Engineer, Safety Management Section,
Rotorcraft Standards Branch, FAA, 10101
Hillwood Pkwy., Fort Worth, TX 76177;
telephone (817) 222–5110; email 9-ASWFTW-AMOC-Requests@faa.gov.
(2) For operations conducted under a 14
CFR part 119 operating certificate or under
14 CFR part 91, subpart K, we suggest that
you notify your principal inspector, or
lacking a principal inspector, the manager of
the local flight standards district office or
certificate holding district office, before
operating any aircraft complying with this
AD through an AMOC.
(i) Additional Information
(1) Bell Alert Service Bulletin No. 429–15–
16, Revision B, dated June 15, 2016, which
is not incorporated by reference, contains
additional information about the subject of
this AD. For service information identified in
this AD, contact Bell Helicopter Textron
Canada Limited, 12,800 Rue de l’Avenir,
Mirabel, Quebec J7J1R4; telephone (450)
437–2862 or (800) 363–8023; fax (450) 433–
0272; or at https://www.bellcustomer.com/
files/. You may review a copy of the service
information at the FAA, Office of the
Regional Counsel, Southwest Region, 10101
Hillwood Pkwy., Room 6N–321, Fort Worth,
TX 76177.
(2) The subject of this AD is addressed in
Transport Canada AD No. CF–2015–16R2,
dated April 3, 2017. You may view the
Transport Canada AD on the internet at
https://www.regulations.gov in Docket No.
FAA–2018–0722.
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(j) Subject
Joint Aircraft Service Component (JASC)
Code: 6720 Tail Rotor Control System.
Issued in Fort Worth, Texas, on May 31,
2019.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2019–11991 Filed 6–6–19; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0794; Product
Identifier 2017–NM–175–AD; Amendment
39–19625; AD 2019–08–04]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc., Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are superseding
Airworthiness Directive (AD) 2012–25–
02, which applied to certain
Bombardier, Inc., Model CL–600–2B19
(Regional Jet Series 100 & 440)
airplanes. AD 2012–25–02 required
revising the airworthiness limitations
section (AWL) of the instructions for
continued airworthiness (ICA) of the
maintenance requirements manual
(MRM) by incorporating new
procedures for repetitive inspections for
cracking of the rear pressure bulkhead
(RPB). AD 2012–25–02 also required
revising the maintenance or inspection
program to incorporate a revised task.
This AD also mandates modification of
the RPB and adds repetitive inspections
for cracking of the RPB web, which
terminates certain actions in this AD.
This AD was prompted by additional inservice crack findings, which resulted in
the development of a structural
modification to the RPB. We are issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective July 12,
2019.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of July 12, 2019.
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of January 16, 2013 (77 FR
73902, December 12, 2012).
SUMMARY:
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For service information
identified in this final rule, contact
Bombardier, Inc., 400 Coˆte-Vertu Road
West, Dorval, Que´bec H4S 1Y9, Canada;
Widebody Customer Response Center
North America toll-free telephone 1–
866–538–1247 or direct-dial telephone
514–855–5000; fax 514–855–7401; email
ac.yul@aero.bombardier.com; internet
https://www.bombardier.com. You may
view this referenced service information
at the FAA, Transport Standards
Branch, 2200 South 216th St., Des
Moines, WA. For information on the
availability of this material at the FAA,
call 206–231–3195. It is also available
on the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0794.
ADDRESSES:
Examining the AD Docket
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0794; or in person at Docket Operations
between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
The AD docket contains this final rule,
the regulatory evaluation, any
comments received, and other
information. The address for Docket
Operations (phone: 800–647–5527) is
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Aziz
Ahmed, Aerospace Engineer, Airframe
and Mechanical Systems Section, FAA,
New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone 516–228–7329; fax
516–794–5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2012–25–02,
Amendment 39–17283 (77 FR 73902,
December 12, 2012) (‘‘AD 2012–25–
02’’). AD 2012–25–02 applied to certain
Bombardier, Inc., Model CL–600–2B19
(Regional Jet Series 100 & 440)
airplanes. The NPRM published in the
Federal Register on September 13, 2018
(83 FR 46428). The NPRM was
prompted by additional in-service crack
findings, which resulted in the
development of a structural
modification to the RPB. The NPRM
proposed to continue to require revising
the AWL of the ICA of the MRM by
incorporating new procedures for
repetitive inspections for cracking of the
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RPB. The NPRM also proposed to
mandate modification of the RPB and
add repetitive inspections for cracking
of the RPB web, which would terminate
certain actions in this AD. We are
issuing this AD to address cracking in
the RPB, which could result in reduced
structural integrity and rapid
decompression of the airplane.
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2011–30R2,
dated June 12, 2017 (referred to after
this as the Mandatory Continuing
Airworthiness Information, or ‘‘the
MCAI’’), to correct an unsafe condition
for certain Bombardier, Inc., Model CL–
600–2B19 (Regional Jet Series 100 &
440) airplanes. The MCAI states:
Cracks on the forward face of the Rear
Pressure Bulkhead (RPB) web have been
discovered on three CL–600–2B19 aeroplanes
in-service.
A Temporary Revision has been made to
Part 2 of the Maintenance Requirements
Manual (MRM) to revise the existing AWL
task by introducing an improved NonDestructive Inspection (NDI) procedure to
ensure that fatigue cracking of the RPB is
detected and corrected.
The original issue of this [TCCA] AD
[which corresponds to FAA AD 2012–25–02]
mandated the incorporation of a new NDI
procedure for AWL task number 53–61–153.
Additional in-service findings have
resulted in the issue of revision 1 of this
[TCCA] AD, which mandates a structural
modification to the rear pressure bulkhead
with revised threshold and repeat inspection
intervals. This modification is intended to
preclude the onset of multiple site fatigue
damage for the remaining service life of the
aeroplane. If not corrected, a failure of the
RPB could result in loss of structural
integrity of the aeroplane.
Revision 2 of this [TCCA] AD requires an
inspection to be carried out prior to
modification of the RPB. This revision also
requires an additional modification to be
completed on the RPB prior to terminating
AWL task number 53–61–153. It also
includes provisions to account for certain
repairs as well as [alternative methods of
compliance] AMOCs issued to earlier
revisions of this [TCCA] AD.
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You may examine the MCAI in the
AD docket on the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2018–
0794.
Comments
We gave the public the opportunity to
participate in developing this final rule.
The following presents the comments
received on the NPRM and the FAA’s
response to each comment.
Support for the NPRM
Endeavor Air stated its support for the
NPRM.
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Request To Add Reference Terminating
Action
Bombardier requested that we revise
paragraph (g) of the proposed AD to
identify the terminating action provided
in paragraph (o)(3) of the proposed AD.
Bombardier pointed out that, since
paragraph (g) of the proposed AD
identifies terminating action in
paragraph (m) of the proposed AD,
paragraph (g) of the proposed AD
should also identify the terminating
action provided in paragraph (o)(3) of
the proposed AD for consistency.
We do not agree to add reference to
paragraph (o)(3) in the introductory text
of paragraph (g) of this AD. Instead,
because paragraph (o) of this AD already
contains all of the terminating actions
for paragraph (g) of this AD, for
simplicity and consistency we have
revised paragraph (g) of this AD to
remove reference to terminating actions
that were identified in the proposed AD.
This change does not change the intent
or requirements of paragraph (g) of this
AD.
Request To Add Alternative Service
Information for Repair
Bombardier requested that we revise
paragraph (k) of the proposed AD to
reference Bombardier Repair
Engineering Order (REO) 601R–53–61–
1285, Revision E, dated October 31,
2016; and Bombardier REO 601R–53–
61–1541, Revision F, dated November
12, 2014; as alternative service
information for the repair. Bombardier
pointed out that this change
corresponds with the provisions of Part
I, section C., of the MCAI.
We agree with the request. We have
determined that the actions specified in
the alternative service information are
acceptable for compliance for the repair.
Therefore, we have revised paragraph
(k)(2) of this AD to add the referenced
REOs as alternative service information
for the repair.
Request To Add Credit for Previous
Actions Using Previous Service
Information
Bombardier requested that we revise
paragraph (p) of the proposed AD to
provide credit for actions done before
the effective date of the AD using earlier
revisions of the service information
specified in part III, section B.,
paragraphs (3), (5), (6), and (7) of the
MCAI. Bombardier did not provide a
justification for this request.
We partially agree with the request to
provide credit for previously
accomplished actions done using the
earlier revisions of the specified service
information. We have determined that
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the service information specified in part
III, section B., paragraphs (3), (5), (6),
and (7) of the MCAI is acceptable for
accomplishing the applicable actions
before the effective date of this AD,
provided certain actions are done using
the required service information.
Therefore, we have added paragraph (p)
to this AD to include the requested
credit, and have redesignated
subsequent paragraphs accordingly.
Request To Allow Approved
Alternative Actions and Intervals
Endeavor Air requested that we revise
paragraph (n) of the proposed AD,
which would prohibit alternative
actions and intervals once revision of
the maintenance or inspection program
is accomplished, except as approved in
paragraph (p)(1) of the proposed AD
(which specified approval by the FAA
only). The commenter asserted that
alternative actions and intervals should
be allowed if approved by specifying
‘‘paragraph (p)(1) or (p)(2)’’ (paragraph
(p)(2) specified approval by the FAA,
TCCA, or the TCCA Design Approval
Organization (DAO)). The commenter
stated that this change would reduce
unnecessary time and paperwork by
eliminating the need for AMOC
approval by the FAA after the operator
has already received a generic REO
(GREO) or REO that is TCCA DAO
approved.
We do not agree to add reference to
paragraph (q)(2) of this AD (paragraph
(p)(2) of the proposed AD) in paragraph
(n) of this AD. Since we do not currently
have the authority to delegate AMOC
approvals to foreign civil aviation
authorities, the FAA is responsible for
these approvals. We have not changed
this AD in this regard.
Request To Allow Deviations to Certain
Service Information
Air Wisconsin requested that
necessary deviations from the
instructions in Bombardier REO 601R–
53–61–1240, Revision D, dated October
31, 2016, be acceptable along with this
REO for compliance with the
requirements of paragraph (j)(2) of the
proposed AD. Air Wisconsin pointed
out that paragraph (j)(2) of the proposed
AD would require a modification in
accordance with Bombardier REO
601R–53–61–1240, Revision D, dated
October 31, 2016, and reported that it
has incorporated this REO on several of
its airplanes. In some cases, Air
Wisconsin stated that it found it
necessary to deviate from the
instructions of this REO (e.g., plugging
holes with fasteners or installation of
next oversize fastener). Therefore, since
there are no approved deviations to the
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inspection procedures in this REO, Air
Wisconsin suggested that necessary
deviations to this REO be considered
acceptable under the following
conditions:
• The deviation is approved by
signature by TCCA or Bombardier, Inc.’s
TCCA DAO; and
• The damage-tolerance analysis was
performed as shown by the entry in
block 6 (Additional Limitations) of the
REO and the entry was determined to be
‘‘None.’’
We do not agree with the commenter’s
request. We do not consider it
appropriate to include various
provisions in an AD applicable only to
an operator’s unique configuration of
affected airplanes. However, if an
operator with an affected airplane
cannot accomplish the required actions
specified in the service information, or
prefers to use different service
information that is specific to their
design, an AMOC can be requested in
accordance with the provisions
specified in paragraph (q) of this AD.
Further, as we explained in the
‘‘Differences Between this Proposed AD
and the Service Information’’ section in
the NPRM, the MCAI includes the
following statement: ‘‘If it is not
possible to complete all of the
instructions in Part II of this [Canadian]
AD due to the configuration of the
aeroplane . . . contact Bombardier Inc.
. . . for approved instructions.’’ This
issue is addressed in 14 CFR 39.17,
which states that ‘‘If a change in a
product affects your ability to
accomplish the actions required by the
AD in any way, you must request FAA
approval of an AMOC . . . .’’ Since we
do not currently have the authority to
delegate AMOC approvals to foreign
civil aviation authorities, the FAA is
responsible for these approvals.
We have not changed this AD
regarding this issue.
Request To Extend Compliance Time
SkyWest Airlines (SkyWest) requested
that we extend the phase-in compliance
times required by paragraph (j) of the
proposed AD, which would require a
modification according to a schedule
based on accumulated flight cycles.
SkyWest reported that, due to its fleet
utilization and the phase-in intervals,
the work might need to be done outside
of a scheduled heavy maintenance visit.
SkyWest proposed an alternative phasein schedule to allow a cushion of time
in order for them to reach the next
heavy maintenance visit.
We do not agree with the commenter’s
request to extend the phase-in
compliance times specified in figure 1
to paragraph (j) of this AD. We have
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determined that the compliance times,
as proposed, represent the maximum
interval of time allowable for the
affected airplanes to continue to safely
operate before the modification is done.
Since maintenance schedules vary
among operators, there would be no
assurance that the airplane would be
modified during that maximum interval.
Further, this commenter did not provide
data verifying the safety of the proposed
intervals. Although we have not
changed the AD regarding this issue,
under the provisions of paragraph (q)(1)
of this AD, we will consider requests for
approval of an alternative compliance
time, if data are submitted to
substantiate that such an adjustment
would provide an acceptable level of
safety. We have not changed this AD in
this regard.
Request To Clarify Credit for Prior
Accomplishment
Air Wisconsin requested that we
revise paragraph (j) of the proposed AD
to specify that the actions are required
‘‘unless already accomplished.’’ Air
Wisconsin stated that several of its
airplanes have been modified using the
applicable service information.
We do not agree to revise paragraph
(j) of this AD. Paragraph (f) of this AD
requires compliance with all AD
requirements ‘‘unless already done.’’
Therefore, the commenter’s proposed
wording is unnecessary. We have not
changed this AD regarding this issue.
Request for Clarification of Locations
for Nondestructive Inspection (NDI)
Air Wisconsin requested that we
clarify whether the NDI specified in
paragraph (j)(1) of the proposed AD is
for areas that have not been modified
using various REOs or Supplemental
Type Certificate (STC) ST02308NY that
would remain in place. The commenter
added that the NDI may not be possible
for those areas modified using
Bombardier REO 601R–53–61–1541; or
Bombardier REO 601R–53–61–1285,
Revision D, dated October 31, 2011, or
Revision E, dated October 31, 2016;
which were approved by certain
AMOCs; because the NDI has not yet
been developed for those areas.
We agree that clarification is
necessary. Unless this AD provides
specific credit for an existing
modification or repair NDI, an
evaluation needs to be accomplished to
determine whether the inspection
associated with the existing
modification or repair meets an
acceptable level of safety. An AMOC is
required for an alternative action based
on the existing modification or repair.
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We have not changed this AD regarding
this issue.
Request for Clarification of Affected
Serial Number
Air Wisconsin noted that paragraph
(m) of the proposed AD applies to ‘‘any
airplane having serial number 7610,’’
and asked whether more than one
Model CL–600–2B19 airplane had that
serial number.
We agree that clarification is
necessary. There is only one airplane
with serial number 7610. We have
revised paragraph (m) of this AD to
specify ‘‘For airplane serial number
7610.’’
Request To Clarify Terminating
Requirements
Air Wisconsin requested that we
clarify paragraph (o)(1) of the proposed
AD by explaining how compliance with
paragraph (j) or (l) of the proposed AD
would not entirely terminate the
requirements of paragraph (g) of the
proposed AD.
We agree that clarification may be
necessary. Paragraph (o)(1) of this AD
specifies that accomplishing the
requirements of paragraph (j) or (l)
terminates the requirements of
paragraph (g) of this AD ‘‘for the
repaired area only.’’ The inspections
required by paragraph (g) of this AD
must be repeated for non-repaired areas.
This requirement corresponds with the
MCAI. We have not changed this AD
regarding this issue.
Request for Credit for Previous Repairs
Bombardier requested that we revise
paragraphs (k)(1) and (k)(2) of the
proposed AD to give credit for repairs
done before the effective date of the AD,
if those repairs were approved by the
FAA, TCCA, or Bombardier’s TCCA
DAO and referred to the MCAI.
Bombardier noted that this credit is
provided in part I, section C., of the
MCAI.
We partially agree. We agree to
provide credit for repairs specified in
paragraphs (k)(1) and (k)(2) of this AD,
if those repairs were done before the
effective date of this AD, and were done
in accordance with a method approved
by the Manager, New York ACO Branch,
FAA; TCCA; or Bombardier’s TCCA
DAO; and the approval references TCCA
AD CF–2011–30, dated August 24, 2011,
or AD CF–2011–30R1, dated November
1, 2016. However, we do not agree to
include that credit in paragraphs (k)(1)
and (k)(2) of this AD. Instead, we have
added paragraph (p)(1) to this AD to
provide the requested credit. (As
explained previously, we have
redesignated paragraphs (p)(1) and
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(p)(2) of the proposed AD as paragraphs
(q)(1) and (q)(2) of this AD.)
Request To Correct Paragraph
References
Bombardier noted a typographical
error in paragraph (p)(1)(ii) of the
proposed AD, which specified that
previously approved AMOCs are
acceptable for ‘‘paragraphs (g), (k), and
(l)’’ of the proposed AD. Bombardier
asserted that the correct paragraph
references are (g), (h), and (i).
We agree that paragraph (p)(1)(ii) of
the proposed AD included a
typographical error in the paragraph
references. We have revised paragraph
(q)(1)(ii) of this AD (paragraph (p)(1)(ii)
of the proposed AD) to reference the
correct paragraphs.
Conclusion
We reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this
final rule with the changes described
previously and minor editorial changes.
We have determined that these minor
changes:
• Are consistent with the intent that
was proposed in the NPRM for
addressing the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
We also determined that these
changes will not increase the economic
burden on any operator or increase the
scope of this final rule.
Related Service Information Under 1
CFR Part 51
Bombardier, Inc., has issued the
following service information.
• Bombardier REO 601R–53–61–
1230, Revision F, dated October 31,
2011. This service information describes
procedures for a repair to the pressure
bulkhead web frame station (FS) 621.00,
lintel installation.
• Bombardier REO 601R–53–61–
1240, Revision D, dated October 31,
2016. This service information describes
procedures for a repair and modification
to FS 621.00 pressure bulkhead web.
• Bombardier REO 601R–53–61–
5828, Revision A, dated March 16, 2017.
This service information describes
procedures for a repair to FS 621.00
pressure bulkhead web at left buttock
line (LBL) 27.5.
This AD also requires Bombardier
Temporary Revision 2B–2187, dated
June 22, 2011, to Appendix BAirworthiness Limitations, of Part 2 of
the Bombardier CL–600–2B19 MRM,
which the Director of the Federal
Register approved for incorporation by
reference as of January 16, 2013 (77 FR
73902, December 12, 2012).
This service information is reasonably
available because the interested parties
have access to it through their normal
course of business or by the means
identified in the ADDRESSES section.
Costs of Compliance
We estimate that this AD affects 457
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Up to 917 work-hours × $85 per hour = $77,945 ...............................
Up to $6,000 .............
Up to $83,945 ...........
We have determined that revising the
maintenance or inspection program
takes an average of 90 work-hours per
operator, although we recognize that
this number may vary from operator to
operator. In the past, we have estimated
that this action takes 1 work-hour per
airplane. Since operators incorporate
maintenance or inspection program
changes for their affected fleet(s), we
have determined that a per-operator
estimate is more accurate than a perairplane estimate. Therefore, we
estimate the total cost per operator to be
$7,650 (90 work-hours × $85 per workhour).
We have received no definitive data
that would enable us to provide cost
estimates for the on-condition actions
specified in this AD.
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Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
We are issuing this rulemaking under
the authority described in Subtitle VII,
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Part A, Subpart III, Section 44701:
‘‘General requirements.’’ Under that
section, Congress charges the FAA with
promoting safe flight of civil aircraft in
air commerce by prescribing regulations
for practices, methods, and procedures
the Administrator finds necessary for
safety in air commerce. This regulation
is within the scope of that authority
because it addresses an unsafe condition
that is likely to exist or develop on
products identified in this rulemaking
action.
This AD is issued in accordance with
authority delegated by the Executive
Director, Aircraft Certification Service,
as authorized by FAA Order 8000.51C.
In accordance with that order, issuance
of ADs is normally a function of the
Compliance and Airworthiness
Division, but during this transition
period, the Executive Director has
delegated the authority to issue ADs
applicable to transport category
airplanes and associated appliances to
the Director of the System Oversight
Division.
Regulatory Findings
We determined that this AD will not
have federalism implications under
Executive Order 13132. This AD will
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Cost on U.S.
operators
Up to $38,362,865.
not have a substantial direct effect on
the States, on the relationship between
the national government and the States,
or on the distribution of power and
responsibilities among the various
levels of government.
For the reasons discussed above, I
certify that this AD:
1. Is not a ‘‘significant regulatory
action’’ under Executive Order 12866;
2. Is not a ‘‘significant rule’’ under the
DOT Regulatory Policies and Procedures
(44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in
Alaska; and
4. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
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PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by
removing Airworthiness Directive (AD)
2012–25–02, Amendment 39–17283 (77
FR 73902, December 12, 2012), and
adding the following new AD:
■
2019–08–04 Bombardier, Inc.: Amendment
39–19625; Docket No. FAA–2018–0794;
Product Identifier 2017–NM–175–AD.
(a) Effective Date
This AD is effective July 12, 2019.
(b) Affected ADs
This AD replaces AD 2012–25–02,
Amendment 39–17283 (77 FR 73902,
December 12, 2012) (‘‘AD 2012–25–02’’).
(c) Applicability
This AD applies to Bombardier, Inc.,
Model CL–600–2B19 (Regional Jet Series 100
& 440) airplanes, certificated in any category,
serial numbers 7002 through 8025 inclusive,
8030, and 8034.
(d) Subject
Air Transport Association (ATA) of
America Code 53, Fuselage.
(e) Reason
This AD was prompted by multiple reports
of cracks on the forward face of the rear
pressure bulkhead (RPB) web, and additional
in-service crack findings that resulted in the
development of a structural modification to
the RPB. We are issuing this AD to address
cracking in the RPB, which could result in
reduced structural integrity and rapid
decompression of the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
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(g) Retained Revision of the Maintenance
Program With Minor Changes
This paragraph restates the requirements of
paragraph (i) of AD 2012–25–02, with minor
changes. Except for the airplane having serial
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number 7002, within 60 days after January
16, 2013 (the effective date of AD 2012–25–
02): Revise the maintenance program by
incorporating the revised inspection
requirements specified in airworthiness
limitation section (AWL) 53–61–153 of
Bombardier temporary revision (TR) 2B–
2187, dated June 22, 2011, to Appendix BAirworthiness Limitations, of Part 2 of the
Bombardier CL–600–2B19 Maintenance
Requirements Manual (MRM). The initial
compliance times for the task are at the
applicable time specified in paragraph (g)(1)
or (g)(2) of this AD.
(1) For airplanes on which the special
detailed inspection specified in AWL 53–61–
153 of Bombardier TR 2B–2187, dated June
22, 2011; or Canadair Regional Jet TR 2B–
2109, dated October 13, 2005; has not been
done as of January 16, 2013 (the effective
date of AD 2012–25–02): The initial
compliance time for AWL 53–61–153 is at
the applicable time specified in paragraph
(g)(1)(i) or (g)(1)(ii) of this AD.
(i) For airplanes that have accumulated
10,500 total flight cycles or less as of January
16, 2013: Before the accumulation of 12,000
total flight cycles.
(ii) For airplanes that have accumulated
more than 10,500 total flight cycles as of
January 16, 2013: Within 1,500 flight cycles
after January 16, 2013 (the effective date of
AD 2012–25–02).
(2) For airplanes on which the special
detailed inspection specified in AWL 53–61–
153 of Bombardier TR 2B–2187, dated June
22, 2011; or Canadair Regional Jet TR 2B–
2109, dated October 13, 2005; has been done
as of January 16, 2013 (the effective date of
AD 2012–25–02): The initial compliance time
for AWL 53–61–153 is within 4,360 flight
cycles after accomplishing the most recent
special detailed inspection, or within 1,500
flight cycles after accomplishing the most
recent detailed inspection as specified in
AWL 53–61–153 of Canadair Regional Jet TR
2B–2109, dated October 13, 2005, whichever
occurs later.
(h) Retained No Alternative Actions or
Intervals, With New Exception
This paragraph restates the requirements of
paragraph (j) of AD 2012–25–02, with a new
exception. Except as required by paragraphs
(j)(3), (l)(2), and (m) of this AD, after
accomplishing the revisions required by
paragraph (g) of this AD, no alternative
actions (e.g., inspections) or intervals may be
used other than those specified in
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Bombardier TR 2B–2187, dated June 22,
2011, to Appendix B-Airworthiness
Limitations, of Part 2 of the Bombardier CL–
600–2B19 MRM, unless the actions and
intervals are approved as an alternative
method of compliance (AMOC) in
accordance with the procedures specified in
paragraph (q)(1) of this AD.
(i) Retained General Revision of the MRM,
With No Changes
This paragraph restates the requirements of
paragraph (k) of AD 2012–25–02, with no
changes. The maintenance program revision
required by paragraph (g) of this AD may be
done by inserting a copy of Bombardier TR
2B–2187, dated June 22, 2011, into Appendix
B-Airworthiness Limitations, of Part 2 of the
Bombardier CL–600–2B19 MRM. When this
TR has been included in general revisions of
the MRM, the general revisions may be
inserted in the MRM, provided the relevant
information in the general revision is
identical to that in this TR.
(j) New Requirements of This AD:
Inspections, Modification, and Maintenance
or Inspection Program Revision
Accomplish the actions required by
paragraphs (j)(1), (j)(2), and (j)(3) of this AD
at the time specified, except as provided by
paragraphs (l) and (m) of this AD.
(1) At the applicable time specified in
figure 1 to paragraph (j) of this AD: Do a
nondestructive inspection for cracking of the
forward face of the fuselage station (FS) 621
pressure bulkhead, in accordance with AWL
53–61–153 of Bombardier TR 2B–2187, dated
June 22, 2011, to Appendix B—
Airworthiness Limitations, of Part 2 of the
Bombardier CL–600–2B19 MRM.
(2) At the applicable time specified in
figure 1 to paragraph (j) of this AD: Modify
the RPB and do a nondestructive inspection
for cracking of the FS 621 pressure bulkhead
web, in accordance with Bombardier Repair
Engineering Order (REO) 601R–53–61–1240,
Revision D, dated October 31, 2016.
(3) Before further flight after accomplishing
the modification required by paragraph (j)(2)
of this AD: Revise the existing maintenance
or inspection program, as applicable, by
incorporating the inspection requirements at
the threshold and repetitive inspection times
specified in the in-service deviation
inspection requirements (SDIR) of
Bombardier REO 601R–53–61–1240, Revision
D, dated October 31, 2016.
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(1) If any crack is found during any
inspection required by paragraph (j)(2), (l)(1),
or (m) of this AD: Before further flight, repair
using a method approved by the Manager,
New York ACO Branch, FAA; Transport
Canada Civil Aviation (TCCA); or
Bombardier, Inc.’s TCCA Design Approval
Organization (DAO). If approved by the DAO,
the approval must include the DAOauthorized signature.
(2) If any crack is found during any
inspection required by paragraph (j)(1) of this
AD: Before further flight, repair in
accordance with the applicable service
information specified in paragraph (k)(2)(i) or
(k)(2)(ii) of this AD, or using a method
approved by the Manager, New York ACO
Branch, FAA; TCCA; or Bombardier, Inc.’s
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TCCA DAO. If approved by the DAO, the
approval must include the DAO-authorized
signature.
(i) Bombardier REO 601R–53–61–1230,
Revision F, dated October 31, 2011; or
Bombardier REO 601R–53–61–1285, Revision
E, dated October 31, 2016.
(ii) Bombardier REO 601R–53–61–1240,
Revision D, dated October 31, 2016; or
Bombardier REO 601R–53–61–1541, Revision
F, dated November 12, 2014.
(l) Alternative Actions for Certain Airplanes
For airplanes on which the actions
required by paragraphs (j)(1) and (j)(2) of this
AD were performed before the effective date
of this AD using the REOs identified in figure
2 to paragraph (l) of this AD: In lieu of
accomplishing the actions required by
paragraph (j) of this AD, accomplish the
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actions required by paragraphs (l)(1) and
(l)(2) of this AD within 6,000 flight cycles
after the effective date of this AD.
(1) Perform a special detailed inspection
for cracking of Zone B of the RPB web, in
accordance with Part B of Bombardier REO
601R–53–61–1240, Revision D, dated October
31, 2016.
(2) Revise the existing maintenance or
inspection program, as applicable, by
incorporating the inspection requirements at
the threshold and repetitive inspection times
specified in Part B of the SDIR of Bombardier
REO 601R–53–61–1240, Revision D, dated
October 31, 2016. The inspection threshold is
measured from the time of incorporation of
the applicable REO specified in figure 2 to
paragraph (l) of this AD.
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(k) Corrective Action
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Figure 2 to paragraph (I) of this AD REGs Equivalent to Part A of REO 601R-53-61-1240
Serial Number
Bombardier REO
601R-53-61-3032, Revision D, dated May 6, 2014
7029
601R-53-61-3059, Revision D, dated November 1, 2011
601R-53-61-5220, Revision A, dated March 20, 2014
601R-53-61-4391, dated February 6, 2012
7033
601R-53-61-4405, dated February 16, 2012
601R-53-61-4398, Revision A, dated August 23, 2016
7054
601R-53-61-5801, dated August 23, 2016
7058
601R-53-61-5480, dated May 22, 2015
7060
601R-53-61-4385, Revision A, dated August 25, 2016
7206
601R-53-61-4750, dated January 15, 2013
7212
601R-53-61-5137, Revision A, dated August 25, 2016
7312
601R-53-61-5738, dated June 23, 2016
7424
601R-53-61-5295, Revision A, dated July 2, 2014
7430
601R-53-61-4950, dated June 28, 2013
7433
601R-53-61-2039, Revision A, dated August 24, 2016
601R-53-61-4821, Revision A, dated February 28, 2013
601R-53-61-4572, Revision C, dated February 27, 2013
7452
601R-53-61-4584, Revision A, dated February 27, 2013
601R-53-61-4712, dated November 15, 2012
7463
601R-53-61-5369, dated October 14, 2014
7466
601R-53-61-4884, dated April25, 2013
7468
601R-53-61-5779, Revision A, dated August 16, 2016
7476
601R-53-61-5727, Revision B, dated June 8, 2016
601R-53-61-5040, dated October 2, 2013
7484
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601R-53-61-5049, Revision A, dated October 9, 2013
BILLING CODE 4910–13–C
(n) No Alternative Actions or Intervals
(m) Alternative Actions for Airplane Serial
Number 7610
After the maintenance or inspection
program has been revised as required by
paragraph (j)(3), (l)(2), or (m) of this AD, no
alternative actions (e.g., inspections) or
intervals may be used unless the actions or
intervals are approved as an AMOC in
accordance with the procedures specified in
paragraph (p)(1) of this AD.
For airplane serial number 7610: In lieu of
accomplishing the actions required by
paragraph (j) of this AD; within 6,000 flight
cycles after the effective date of this AD, do
a reinforcement of K601R36010—A at left
buttock line (LBL) 27.5 and perform a special
detailed inspection for cracking of the FS 621
pressure bulkhead web at LBL 27.5, in
accordance with Bombardier REO 601R–53–
61–5828, Revision A, dated March 16, 2017.
Before further flight after accomplishing the
reinforcement, or within 60 days after the
effective date of this AD, whichever occurs
later: Revise the maintenance or inspection
program, as applicable, by incorporating the
inspection requirements that include
threshold and repetitive inspection times as
specified in the SDIR of Bombardier REO
601R–53–61–5828, Revision A, dated March
16, 2017.
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(o) Terminating Actions for Paragraph (g) of
This AD
(1) Accomplishment of the actions required
by paragraph (j) or (l) of this AD terminates
the requirements of paragraph (g) of this AD,
for the repaired area only.
(2) Accomplishment of the actions required
by paragraph (m) of this AD terminates the
requirements of paragraph (g) of this AD.
(3) For airplanes on which the actions
required by paragraph (j) or (l) of this AD
have been done and on which the
modification and inspection specified in REO
601R–53–61–1230, Revision F, dated October
31, 2011, have been done and there were no
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26555
inspection findings: The actions required by
paragraph (g) of this AD are terminated.
(p) Credit for Previous Actions
(1) This paragraph provides credit for the
actions required by paragraphs (k)(1) and
(k)(2) of this AD, if those repairs were done
before the effective date of this AD using a
method approved by the Manager, New York
ACO Branch, FAA; TCCA; or Bombardier,
Inc.’s TCCA DAO; which references TCCA
AD CF–2011–30, dated August 24, 2011, or
AD CF–2011–30R1, dated November 1, 2016.
(2) This paragraph provides credit for the
actions required by paragraph (k)(2) of this
AD, if those actions were performed before
the effective date of this AD using the service
information specified in paragraph (p)(2)(i),
(p)(2)(ii), (p)(2)(iii), (p)(2)(iv), (p)(2)(v), or
(p)(2)(vi) of this AD, provided that the
maintenance or inspection program is revised
by incorporating the inspection requirements
at the threshold and repetitive inspection
times specified in the SDIR of Bombardier
REO 601R–53–61–1230, Revision F, dated
November 7, 2011.
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(i) Bombardier REO 601R–53–61–1230,
dated February 10, 2005.
(ii) Bombardier REO 601R–53–61–1230,
Revision A, dated November 6, 2009.
(iii) Bombardier REO 601R–53–61–1230,
Revision B, dated October 5, 2005.
(iv) Bombardier REO 601R–53–61–1230,
Revision C, dated November 10, 2005.
(v) Bombardier REO 601R–53–61–1230,
Revision D, dated July 19, 2006.
(vi) Bombardier REO 601R–53–61–1230,
Revision E, dated August 18, 2011.
(3) This paragraph provides credit for the
actions required by paragraph (k)(2) of this
AD, if those actions were performed before
the effective date of this AD using the service
information specified in paragraph (p)(3)(i),
(p)(3)(ii), (p)(3)(iii), (p)(3)(iv), or (p)(3)(v) of
this AD, provided that the maintenance or
inspection program is revised by
incorporating the inspection requirements at
the threshold and repetitive inspection times
specified in the SDIR of Bombardier REO
601R–53–61–1285, Revision E, date October
31, 2016.
(i) Bombardier REO 601R–53–61–1285,
dated March 24, 2005.
(ii) Bombardier REO 601R–53–61–1285,
Revision A, dated November 6, 2009.
(iii) Bombardier REO 601R–53–61–1285,
Revision B, dated April 14, 2010.
(iv) Bombardier REO 601R–53–61–1285,
Revision C, dated August 19, 2011.
(v) Bombardier REO 601R–53–61–1285,
Revision D, dated October 31, 2011.
(4) This paragraph provides credit for the
actions required by paragraph (k)(2) of this
AD if those actions were performed before
the effective date of this AD using the service
information specified in paragraph (p)(4)(i),
(p)(4)(ii), (p)(4)(iii), (p)(4)(iv), (p)(4)(v), or
(p)(4)(vi) of this AD, provided that the
maintenance or inspection program is revised
by incorporating the inspection requirements
at the threshold and repetitive inspection
times specified in the SDIR of Bombardier
REO 601R–53–61–1541, Revision F, dated
November 12, 2014.
(i) Bombardier REO 601R–53–61–1541,
dated November 27, 2005.
(ii) Bombardier REO 601R–53–61–1541,
Revision A, dated February 8, 2008.
(iii) Bombardier REO 601R–53–61–1541,
Revision B, dated March 16, 2009.
(iv) Bombardier REO 601R–53–61–1541,
Revision C, dated August 19, 2011.
(v) Bombardier REO 601R–53–61–1541,
Revision D, dated October 31, 2011.
(vi) Bombardier REO 601R–53–61–1541,
Revision E, dated November 5, 2013.
(5) This paragraph provides credit for the
actions required by paragraph (m) of this AD,
if those actions were performed before the
effective date of this AD using Bombardier
REO 601R–53–61–5828, dated November 1,
2016, provided that the maintenance or
inspection program is revised by
incorporating the inspection requirements at
the threshold and repetitive inspection times
specified in the SDIR of Bombardier REO
601R–53–61–5828, Revision A, dated March
16, 2017.
(q) Other FAA AD Provisions
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York ACO
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16:25 Jun 06, 2019
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Branch, FAA, has the authority to approve
AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In
accordance with 14 CFR 39.19, send your
request to your principal inspector or local
Flight Standards District Office, as
appropriate. If sending information directly
to the manager of the certification office,
send it to ATTN: Program Manager,
Continuing Operational Safety, FAA, New
York ACO Branch, 1600 Stewart Avenue,
Suite 410, Westbury, New York 11590;
telephone: 516–228–7300; fax: 516–794–
5531.
(i) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(ii) AMOCs approved previously for AD
2012–25–02 are approved as AMOCs for the
corresponding provisions in paragraphs (g),
(h), and (i) of this AD.
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain corrective
actions from a manufacturer, the action must
be accomplished using a method approved
by the Manager, New York ACO Branch,
FAA; or TCCA; or Bombardier Inc.’s TCCA
DAO. If approved by the DAO, the approval
must include the DAO-authorized signature.
(r) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
Airworthiness Directive CF–2011–30R2,
dated June 12, 2017, for related information.
This MCAI may be found in the AD docket
on the internet at https://www.regulations.gov
by searching for and locating Docket No.
FAA–2018–0794.
(2) For more information about this AD,
contact Aziz Ahmed, Aerospace Engineer,
Airframe and Mechanical Systems Section,
FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590;
telephone 516–228–7329; fax 516–794–5531.
(3) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (s)(5) and (s)(6) of this AD.
(s) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless this AD specifies otherwise.
(3) The following service information was
approved for IBR on July 12, 2019.
(i) Bombardier Repair Engineering Order
601R–53–61–1230, Revision F, dated October
31, 2011.
(ii) Bombardier Repair Engineering Order
601R–53–61–1240, Revision D, dated October
31, 2016.
(iii) Bombardier Repair Engineering Order
601R–53–61–1285, Revision E, dated October
31, 2016.
(iv) Bombardier Repair Engineering Order
601R–53–61–1541, Revision F, dated
November 12, 2014.
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(v) Bombardier Repair Engineering Order
601R–53–61–5828, Revision A, dated March
16, 2017.
(4) The following service information was
approved for IBR on January 16, 2013 (77 FR
73902, December 12, 2012).
(i) Bombardier Temporary Revision 2B–
2187, dated June 22, 2011, to Appendix BAirworthiness Limitations, of Part 2 of the
Bombardier CL–600–2B19 Maintenance
Requirements Manual.
(ii) [Reserved]
(5) For service information identified in
this AD, contact Bombardier, Inc., 400 CoˆteVertu Road West, Dorval, Que´bec H4S 1Y9,
Canada; Widebody Customer Response
Center North America toll-free telephone 1–
866–538–1247 or direct-dial telephone 514–
855–5000; fax 514–855–7401; email ac.yul@
aero.bombardier.com; internet https://
www.bombardier.com.
(6) You may view this service information
at the FAA, Transport Standards Branch,
2200 South 216th St., Des Moines, WA. For
information on the availability of this
material at the FAA, call 206–231–3195.
(7) You may view this service information
that is incorporated by reference at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA, call
202–741–6030, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued in Des Moines, Washington, on
April 19, 2019,
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2019–11956 Filed 6–6–19; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0696; Product
Identifier 2017–SW–101–AD; Amendment
39–19650; AD 2019–11–04]
RIN 2120–AA64
Airworthiness Directives; Airbus
Helicopters Deutschland GmbH
Helicopters
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
Airbus Helicopters Deutschland GmbH
(Airbus Helicopters) Model MBB–BK
117 D–2 helicopters. This AD requires
replacing the rescue hoist cable cut
pushbutton flip guard (flip guard). This
AD was prompted by reports of
unintended lifting of several flip guards.
SUMMARY:
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]]>Agencies
[Federal Register Volume 84, Number 110 (Friday, June 7, 2019)]
[Rules and Regulations]
[Pages 26548-26556]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-11956]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0794; Product Identifier 2017-NM-175-AD; Amendment
39-19625; AD 2019-08-04]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are superseding Airworthiness Directive (AD) 2012-25-02,
which applied to certain Bombardier, Inc., Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes. AD 2012-25-02 required revising the
airworthiness limitations section (AWL) of the instructions for
continued airworthiness (ICA) of the maintenance requirements manual
(MRM) by incorporating new procedures for repetitive inspections for
cracking of the rear pressure bulkhead (RPB). AD 2012-25-02 also
required revising the maintenance or inspection program to incorporate
a revised task. This AD also mandates modification of the RPB and adds
repetitive inspections for cracking of the RPB web, which terminates
certain actions in this AD. This AD was prompted by additional in-
service crack findings, which resulted in the development of a
structural modification to the RPB. We are issuing this AD to address
the unsafe condition on these products.
DATES: This AD is effective July 12, 2019.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of July 12,
2019.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
January 16, 2013 (77 FR 73902, December 12, 2012).
ADDRESSES: For service information identified in this final rule,
contact Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; Widebody Customer Response Center North
America toll-free telephone 1-866-538-1247 or direct-dial telephone
514-855-5000; fax 514-855-7401; email [email protected];
internet https://www.bombardier.com. You may view this referenced
service information at the FAA, Transport Standards Branch, 2200 South
216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195. It is also available on the
internet at https://www.regulations.gov by searching for and locating
Docket No. FAA-2018-0794.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0794; or in person at Docket Operations between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays. The AD docket contains
this final rule, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations (phone: 800-647-
5527) is U.S. Department of Transportation, Docket Operations, M-30,
West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Aziz Ahmed, Aerospace Engineer,
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7329;
fax 516-794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2012-25-02, Amendment 39-17283 (77 FR 73902,
December 12, 2012) (``AD 2012-25-02''). AD 2012-25-02 applied to
certain Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 &
440) airplanes. The NPRM published in the Federal Register on September
13, 2018 (83 FR 46428). The NPRM was prompted by additional in-service
crack findings, which resulted in the development of a structural
modification to the RPB. The NPRM proposed to continue to require
revising the AWL of the ICA of the MRM by incorporating new procedures
for repetitive inspections for cracking of the
[[Page 26549]]
RPB. The NPRM also proposed to mandate modification of the RPB and add
repetitive inspections for cracking of the RPB web, which would
terminate certain actions in this AD. We are issuing this AD to address
cracking in the RPB, which could result in reduced structural integrity
and rapid decompression of the airplane.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2011-30R2, dated June 12, 2017 (referred to after this as the Mandatory
Continuing Airworthiness Information, or ``the MCAI''), to correct an
unsafe condition for certain Bombardier, Inc., Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes. The MCAI states:
Cracks on the forward face of the Rear Pressure Bulkhead (RPB)
web have been discovered on three CL-600-2B19 aeroplanes in-service.
A Temporary Revision has been made to Part 2 of the Maintenance
Requirements Manual (MRM) to revise the existing AWL task by
introducing an improved Non-Destructive Inspection (NDI) procedure
to ensure that fatigue cracking of the RPB is detected and
corrected.
The original issue of this [TCCA] AD [which corresponds to FAA
AD 2012-25-02] mandated the incorporation of a new NDI procedure for
AWL task number 53-61-153.
Additional in-service findings have resulted in the issue of
revision 1 of this [TCCA] AD, which mandates a structural
modification to the rear pressure bulkhead with revised threshold
and repeat inspection intervals. This modification is intended to
preclude the onset of multiple site fatigue damage for the remaining
service life of the aeroplane. If not corrected, a failure of the
RPB could result in loss of structural integrity of the aeroplane.
Revision 2 of this [TCCA] AD requires an inspection to be
carried out prior to modification of the RPB. This revision also
requires an additional modification to be completed on the RPB prior
to terminating AWL task number 53-61-153. It also includes
provisions to account for certain repairs as well as [alternative
methods of compliance] AMOCs issued to earlier revisions of this
[TCCA] AD.
You may examine the MCAI in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0794.
Comments
We gave the public the opportunity to participate in developing
this final rule. The following presents the comments received on the
NPRM and the FAA's response to each comment.
Support for the NPRM
Endeavor Air stated its support for the NPRM.
Request To Add Reference Terminating Action
Bombardier requested that we revise paragraph (g) of the proposed
AD to identify the terminating action provided in paragraph (o)(3) of
the proposed AD. Bombardier pointed out that, since paragraph (g) of
the proposed AD identifies terminating action in paragraph (m) of the
proposed AD, paragraph (g) of the proposed AD should also identify the
terminating action provided in paragraph (o)(3) of the proposed AD for
consistency.
We do not agree to add reference to paragraph (o)(3) in the
introductory text of paragraph (g) of this AD. Instead, because
paragraph (o) of this AD already contains all of the terminating
actions for paragraph (g) of this AD, for simplicity and consistency we
have revised paragraph (g) of this AD to remove reference to
terminating actions that were identified in the proposed AD. This
change does not change the intent or requirements of paragraph (g) of
this AD.
Request To Add Alternative Service Information for Repair
Bombardier requested that we revise paragraph (k) of the proposed
AD to reference Bombardier Repair Engineering Order (REO) 601R-53-61-
1285, Revision E, dated October 31, 2016; and Bombardier REO 601R-53-
61-1541, Revision F, dated November 12, 2014; as alternative service
information for the repair. Bombardier pointed out that this change
corresponds with the provisions of Part I, section C., of the MCAI.
We agree with the request. We have determined that the actions
specified in the alternative service information are acceptable for
compliance for the repair. Therefore, we have revised paragraph (k)(2)
of this AD to add the referenced REOs as alternative service
information for the repair.
Request To Add Credit for Previous Actions Using Previous Service
Information
Bombardier requested that we revise paragraph (p) of the proposed
AD to provide credit for actions done before the effective date of the
AD using earlier revisions of the service information specified in part
III, section B., paragraphs (3), (5), (6), and (7) of the MCAI.
Bombardier did not provide a justification for this request.
We partially agree with the request to provide credit for
previously accomplished actions done using the earlier revisions of the
specified service information. We have determined that the service
information specified in part III, section B., paragraphs (3), (5),
(6), and (7) of the MCAI is acceptable for accomplishing the applicable
actions before the effective date of this AD, provided certain actions
are done using the required service information. Therefore, we have
added paragraph (p) to this AD to include the requested credit, and
have redesignated subsequent paragraphs accordingly.
Request To Allow Approved Alternative Actions and Intervals
Endeavor Air requested that we revise paragraph (n) of the proposed
AD, which would prohibit alternative actions and intervals once
revision of the maintenance or inspection program is accomplished,
except as approved in paragraph (p)(1) of the proposed AD (which
specified approval by the FAA only). The commenter asserted that
alternative actions and intervals should be allowed if approved by
specifying ``paragraph (p)(1) or (p)(2)'' (paragraph (p)(2) specified
approval by the FAA, TCCA, or the TCCA Design Approval Organization
(DAO)). The commenter stated that this change would reduce unnecessary
time and paperwork by eliminating the need for AMOC approval by the FAA
after the operator has already received a generic REO (GREO) or REO
that is TCCA DAO approved.
We do not agree to add reference to paragraph (q)(2) of this AD
(paragraph (p)(2) of the proposed AD) in paragraph (n) of this AD.
Since we do not currently have the authority to delegate AMOC approvals
to foreign civil aviation authorities, the FAA is responsible for these
approvals. We have not changed this AD in this regard.
Request To Allow Deviations to Certain Service Information
Air Wisconsin requested that necessary deviations from the
instructions in Bombardier REO 601R-53-61-1240, Revision D, dated
October 31, 2016, be acceptable along with this REO for compliance with
the requirements of paragraph (j)(2) of the proposed AD. Air Wisconsin
pointed out that paragraph (j)(2) of the proposed AD would require a
modification in accordance with Bombardier REO 601R-53-61-1240,
Revision D, dated October 31, 2016, and reported that it has
incorporated this REO on several of its airplanes. In some cases, Air
Wisconsin stated that it found it necessary to deviate from the
instructions of this REO (e.g., plugging holes with fasteners or
installation of next oversize fastener). Therefore, since there are no
approved deviations to the
[[Page 26550]]
inspection procedures in this REO, Air Wisconsin suggested that
necessary deviations to this REO be considered acceptable under the
following conditions:
The deviation is approved by signature by TCCA or
Bombardier, Inc.'s TCCA DAO; and
The damage-tolerance analysis was performed as shown by
the entry in block 6 (Additional Limitations) of the REO and the entry
was determined to be ``None.''
We do not agree with the commenter's request. We do not consider it
appropriate to include various provisions in an AD applicable only to
an operator's unique configuration of affected airplanes. However, if
an operator with an affected airplane cannot accomplish the required
actions specified in the service information, or prefers to use
different service information that is specific to their design, an AMOC
can be requested in accordance with the provisions specified in
paragraph (q) of this AD.
Further, as we explained in the ``Differences Between this Proposed
AD and the Service Information'' section in the NPRM, the MCAI includes
the following statement: ``If it is not possible to complete all of the
instructions in Part II of this [Canadian] AD due to the configuration
of the aeroplane . . . contact Bombardier Inc. . . . for approved
instructions.'' This issue is addressed in 14 CFR 39.17, which states
that ``If a change in a product affects your ability to accomplish the
actions required by the AD in any way, you must request FAA approval of
an AMOC . . . .'' Since we do not currently have the authority to
delegate AMOC approvals to foreign civil aviation authorities, the FAA
is responsible for these approvals.
We have not changed this AD regarding this issue.
Request To Extend Compliance Time
SkyWest Airlines (SkyWest) requested that we extend the phase-in
compliance times required by paragraph (j) of the proposed AD, which
would require a modification according to a schedule based on
accumulated flight cycles. SkyWest reported that, due to its fleet
utilization and the phase-in intervals, the work might need to be done
outside of a scheduled heavy maintenance visit. SkyWest proposed an
alternative phase-in schedule to allow a cushion of time in order for
them to reach the next heavy maintenance visit.
We do not agree with the commenter's request to extend the phase-in
compliance times specified in figure 1 to paragraph (j) of this AD. We
have determined that the compliance times, as proposed, represent the
maximum interval of time allowable for the affected airplanes to
continue to safely operate before the modification is done. Since
maintenance schedules vary among operators, there would be no assurance
that the airplane would be modified during that maximum interval.
Further, this commenter did not provide data verifying the safety of
the proposed intervals. Although we have not changed the AD regarding
this issue, under the provisions of paragraph (q)(1) of this AD, we
will consider requests for approval of an alternative compliance time,
if data are submitted to substantiate that such an adjustment would
provide an acceptable level of safety. We have not changed this AD in
this regard.
Request To Clarify Credit for Prior Accomplishment
Air Wisconsin requested that we revise paragraph (j) of the
proposed AD to specify that the actions are required ``unless already
accomplished.'' Air Wisconsin stated that several of its airplanes have
been modified using the applicable service information.
We do not agree to revise paragraph (j) of this AD. Paragraph (f)
of this AD requires compliance with all AD requirements ``unless
already done.'' Therefore, the commenter's proposed wording is
unnecessary. We have not changed this AD regarding this issue.
Request for Clarification of Locations for Nondestructive Inspection
(NDI)
Air Wisconsin requested that we clarify whether the NDI specified
in paragraph (j)(1) of the proposed AD is for areas that have not been
modified using various REOs or Supplemental Type Certificate (STC)
ST02308NY that would remain in place. The commenter added that the NDI
may not be possible for those areas modified using Bombardier REO 601R-
53-61-1541; or Bombardier REO 601R-53-61-1285, Revision D, dated
October 31, 2011, or Revision E, dated October 31, 2016; which were
approved by certain AMOCs; because the NDI has not yet been developed
for those areas.
We agree that clarification is necessary. Unless this AD provides
specific credit for an existing modification or repair NDI, an
evaluation needs to be accomplished to determine whether the inspection
associated with the existing modification or repair meets an acceptable
level of safety. An AMOC is required for an alternative action based on
the existing modification or repair. We have not changed this AD
regarding this issue.
Request for Clarification of Affected Serial Number
Air Wisconsin noted that paragraph (m) of the proposed AD applies
to ``any airplane having serial number 7610,'' and asked whether more
than one Model CL-600-2B19 airplane had that serial number.
We agree that clarification is necessary. There is only one
airplane with serial number 7610. We have revised paragraph (m) of this
AD to specify ``For airplane serial number 7610.''
Request To Clarify Terminating Requirements
Air Wisconsin requested that we clarify paragraph (o)(1) of the
proposed AD by explaining how compliance with paragraph (j) or (l) of
the proposed AD would not entirely terminate the requirements of
paragraph (g) of the proposed AD.
We agree that clarification may be necessary. Paragraph (o)(1) of
this AD specifies that accomplishing the requirements of paragraph (j)
or (l) terminates the requirements of paragraph (g) of this AD ``for
the repaired area only.'' The inspections required by paragraph (g) of
this AD must be repeated for non-repaired areas. This requirement
corresponds with the MCAI. We have not changed this AD regarding this
issue.
Request for Credit for Previous Repairs
Bombardier requested that we revise paragraphs (k)(1) and (k)(2) of
the proposed AD to give credit for repairs done before the effective
date of the AD, if those repairs were approved by the FAA, TCCA, or
Bombardier's TCCA DAO and referred to the MCAI. Bombardier noted that
this credit is provided in part I, section C., of the MCAI.
We partially agree. We agree to provide credit for repairs
specified in paragraphs (k)(1) and (k)(2) of this AD, if those repairs
were done before the effective date of this AD, and were done in
accordance with a method approved by the Manager, New York ACO Branch,
FAA; TCCA; or Bombardier's TCCA DAO; and the approval references TCCA
AD CF-2011-30, dated August 24, 2011, or AD CF-2011-30R1, dated
November 1, 2016. However, we do not agree to include that credit in
paragraphs (k)(1) and (k)(2) of this AD. Instead, we have added
paragraph (p)(1) to this AD to provide the requested credit. (As
explained previously, we have redesignated paragraphs (p)(1) and
[[Page 26551]]
(p)(2) of the proposed AD as paragraphs (q)(1) and (q)(2) of this AD.)
Request To Correct Paragraph References
Bombardier noted a typographical error in paragraph (p)(1)(ii) of
the proposed AD, which specified that previously approved AMOCs are
acceptable for ``paragraphs (g), (k), and (l)'' of the proposed AD.
Bombardier asserted that the correct paragraph references are (g), (h),
and (i).
We agree that paragraph (p)(1)(ii) of the proposed AD included a
typographical error in the paragraph references. We have revised
paragraph (q)(1)(ii) of this AD (paragraph (p)(1)(ii) of the proposed
AD) to reference the correct paragraphs.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this final rule with the changes described previously and minor
editorial changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
Related Service Information Under 1 CFR Part 51
Bombardier, Inc., has issued the following service information.
Bombardier REO 601R-53-61-1230, Revision F, dated October
31, 2011. This service information describes procedures for a repair to
the pressure bulkhead web frame station (FS) 621.00, lintel
installation.
Bombardier REO 601R-53-61-1240, Revision D, dated October
31, 2016. This service information describes procedures for a repair
and modification to FS 621.00 pressure bulkhead web.
Bombardier REO 601R-53-61-5828, Revision A, dated March
16, 2017. This service information describes procedures for a repair to
FS 621.00 pressure bulkhead web at left buttock line (LBL) 27.5.
This AD also requires Bombardier Temporary Revision 2B-2187, dated
June 22, 2011, to Appendix B-Airworthiness Limitations, of Part 2 of
the Bombardier CL-600-2B19 MRM, which the Director of the Federal
Register approved for incorporation by reference as of January 16, 2013
(77 FR 73902, December 12, 2012).
This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in the ADDRESSES section.
Costs of Compliance
We estimate that this AD affects 457 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs for Required Actions
--------------------------------------------------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Up to 917 work-hours x $85 per hour = Up to $6,000....................... Up to $83,945...................... Up to $38,362,865.
$77,945.
--------------------------------------------------------------------------------------------------------------------------------------------------------
We have determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although we
recognize that this number may vary from operator to operator. In the
past, we have estimated that this action takes 1 work-hour per
airplane. Since operators incorporate maintenance or inspection program
changes for their affected fleet(s), we have determined that a per-
operator estimate is more accurate than a per-airplane estimate.
Therefore, we estimate the total cost per operator to be $7,650 (90
work-hours x $85 per work-hour).
We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this AD.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. Subtitle VII: Aviation Programs,
describes in more detail the scope of the Agency's authority.
We are issuing this rulemaking under the authority described in
Subtitle VII, Part A, Subpart III, Section 44701: ``General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
This AD is issued in accordance with authority delegated by the
Executive Director, Aircraft Certification Service, as authorized by
FAA Order 8000.51C. In accordance with that order, issuance of ADs is
normally a function of the Compliance and Airworthiness Division, but
during this transition period, the Executive Director has delegated the
authority to issue ADs applicable to transport category airplanes and
associated appliances to the Director of the System Oversight Division.
Regulatory Findings
We determined that this AD will not have federalism implications
under Executive Order 13132. This AD will not have a substantial direct
effect on the States, on the relationship between the national
government and the States, or on the distribution of power and
responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979);
3. Will not affect intrastate aviation in Alaska; and
4. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
[[Page 26552]]
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD)
2012-25-02, Amendment 39-17283 (77 FR 73902, December 12, 2012), and
adding the following new AD:
2019-08-04 Bombardier, Inc.: Amendment 39-19625; Docket No. FAA-
2018-0794; Product Identifier 2017-NM-175-AD.
(a) Effective Date
This AD is effective July 12, 2019.
(b) Affected ADs
This AD replaces AD 2012-25-02, Amendment 39-17283 (77 FR 73902,
December 12, 2012) (``AD 2012-25-02'').
(c) Applicability
This AD applies to Bombardier, Inc., Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes, certificated in any category,
serial numbers 7002 through 8025 inclusive, 8030, and 8034.
(d) Subject
Air Transport Association (ATA) of America Code 53, Fuselage.
(e) Reason
This AD was prompted by multiple reports of cracks on the
forward face of the rear pressure bulkhead (RPB) web, and additional
in-service crack findings that resulted in the development of a
structural modification to the RPB. We are issuing this AD to
address cracking in the RPB, which could result in reduced
structural integrity and rapid decompression of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Revision of the Maintenance Program With Minor Changes
This paragraph restates the requirements of paragraph (i) of AD
2012-25-02, with minor changes. Except for the airplane having
serial number 7002, within 60 days after January 16, 2013 (the
effective date of AD 2012-25-02): Revise the maintenance program by
incorporating the revised inspection requirements specified in
airworthiness limitation section (AWL) 53-61-153 of Bombardier
temporary revision (TR) 2B-2187, dated June 22, 2011, to Appendix B-
Airworthiness Limitations, of Part 2 of the Bombardier CL-600-2B19
Maintenance Requirements Manual (MRM). The initial compliance times
for the task are at the applicable time specified in paragraph
(g)(1) or (g)(2) of this AD.
(1) For airplanes on which the special detailed inspection
specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22,
2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005;
has not been done as of January 16, 2013 (the effective date of AD
2012-25-02): The initial compliance time for AWL 53-61-153 is at the
applicable time specified in paragraph (g)(1)(i) or (g)(1)(ii) of
this AD.
(i) For airplanes that have accumulated 10,500 total flight
cycles or less as of January 16, 2013: Before the accumulation of
12,000 total flight cycles.
(ii) For airplanes that have accumulated more than 10,500 total
flight cycles as of January 16, 2013: Within 1,500 flight cycles
after January 16, 2013 (the effective date of AD 2012-25-02).
(2) For airplanes on which the special detailed inspection
specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22,
2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005;
has been done as of January 16, 2013 (the effective date of AD 2012-
25-02): The initial compliance time for AWL 53-61-153 is within
4,360 flight cycles after accomplishing the most recent special
detailed inspection, or within 1,500 flight cycles after
accomplishing the most recent detailed inspection as specified in
AWL 53-61-153 of Canadair Regional Jet TR 2B-2109, dated October 13,
2005, whichever occurs later.
(h) Retained No Alternative Actions or Intervals, With New Exception
This paragraph restates the requirements of paragraph (j) of AD
2012-25-02, with a new exception. Except as required by paragraphs
(j)(3), (l)(2), and (m) of this AD, after accomplishing the
revisions required by paragraph (g) of this AD, no alternative
actions (e.g., inspections) or intervals may be used other than
those specified in Bombardier TR 2B-2187, dated June 22, 2011, to
Appendix B-Airworthiness Limitations, of Part 2 of the Bombardier
CL-600-2B19 MRM, unless the actions and intervals are approved as an
alternative method of compliance (AMOC) in accordance with the
procedures specified in paragraph (q)(1) of this AD.
(i) Retained General Revision of the MRM, With No Changes
This paragraph restates the requirements of paragraph (k) of AD
2012-25-02, with no changes. The maintenance program revision
required by paragraph (g) of this AD may be done by inserting a copy
of Bombardier TR 2B-2187, dated June 22, 2011, into Appendix B-
Airworthiness Limitations, of Part 2 of the Bombardier CL-600-2B19
MRM. When this TR has been included in general revisions of the MRM,
the general revisions may be inserted in the MRM, provided the
relevant information in the general revision is identical to that in
this TR.
(j) New Requirements of This AD: Inspections, Modification, and
Maintenance or Inspection Program Revision
Accomplish the actions required by paragraphs (j)(1), (j)(2),
and (j)(3) of this AD at the time specified, except as provided by
paragraphs (l) and (m) of this AD.
(1) At the applicable time specified in figure 1 to paragraph
(j) of this AD: Do a nondestructive inspection for cracking of the
forward face of the fuselage station (FS) 621 pressure bulkhead, in
accordance with AWL 53-61-153 of Bombardier TR 2B-2187, dated June
22, 2011, to Appendix B--Airworthiness Limitations, of Part 2 of the
Bombardier CL-600-2B19 MRM.
(2) At the applicable time specified in figure 1 to paragraph
(j) of this AD: Modify the RPB and do a nondestructive inspection
for cracking of the FS 621 pressure bulkhead web, in accordance with
Bombardier Repair Engineering Order (REO) 601R-53-61-1240, Revision
D, dated October 31, 2016.
(3) Before further flight after accomplishing the modification
required by paragraph (j)(2) of this AD: Revise the existing
maintenance or inspection program, as applicable, by incorporating
the inspection requirements at the threshold and repetitive
inspection times specified in the in-service deviation inspection
requirements (SDIR) of Bombardier REO 601R-53-61-1240, Revision D,
dated October 31, 2016.
[[Page 26553]]
[GRAPHIC] [TIFF OMITTED] TR07JN19.001
(k) Corrective Action
(1) If any crack is found during any inspection required by
paragraph (j)(2), (l)(1), or (m) of this AD: Before further flight,
repair using a method approved by the Manager, New York ACO Branch,
FAA; Transport Canada Civil Aviation (TCCA); or Bombardier, Inc.'s
TCCA Design Approval Organization (DAO). If approved by the DAO, the
approval must include the DAO-authorized signature.
(2) If any crack is found during any inspection required by
paragraph (j)(1) of this AD: Before further flight, repair in
accordance with the applicable service information specified in
paragraph (k)(2)(i) or (k)(2)(ii) of this AD, or using a method
approved by the Manager, New York ACO Branch, FAA; TCCA; or
Bombardier, Inc.'s TCCA DAO. If approved by the DAO, the approval
must include the DAO-authorized signature.
(i) Bombardier REO 601R-53-61-1230, Revision F, dated October
31, 2011; or Bombardier REO 601R-53-61-1285, Revision E, dated
October 31, 2016.
(ii) Bombardier REO 601R-53-61-1240, Revision D, dated October
31, 2016; or Bombardier REO 601R-53-61-1541, Revision F, dated
November 12, 2014.
(l) Alternative Actions for Certain Airplanes
For airplanes on which the actions required by paragraphs (j)(1)
and (j)(2) of this AD were performed before the effective date of
this AD using the REOs identified in figure 2 to paragraph (l) of
this AD: In lieu of accomplishing the actions required by paragraph
(j) of this AD, accomplish the actions required by paragraphs (l)(1)
and (l)(2) of this AD within 6,000 flight cycles after the effective
date of this AD.
(1) Perform a special detailed inspection for cracking of Zone B
of the RPB web, in accordance with Part B of Bombardier REO 601R-53-
61-1240, Revision D, dated October 31, 2016.
(2) Revise the existing maintenance or inspection program, as
applicable, by incorporating the inspection requirements at the
threshold and repetitive inspection times specified in Part B of the
SDIR of Bombardier REO 601R-53-61-1240, Revision D, dated October
31, 2016. The inspection threshold is measured from the time of
incorporation of the applicable REO specified in figure 2 to
paragraph (l) of this AD.
BILLING CODE 4910-13-P
[[Page 26554]]
[GRAPHIC] [TIFF OMITTED] TR07JN19.002
[[Page 26555]]
[GRAPHIC] [TIFF OMITTED] TR07JN19.003
BILLING CODE 4910-13-C
(m) Alternative Actions for Airplane Serial Number 7610
For airplane serial number 7610: In lieu of accomplishing the
actions required by paragraph (j) of this AD; within 6,000 flight
cycles after the effective date of this AD, do a reinforcement of
K601R36010--A at left buttock line (LBL) 27.5 and perform a special
detailed inspection for cracking of the FS 621 pressure bulkhead web
at LBL 27.5, in accordance with Bombardier REO 601R-53-61-5828,
Revision A, dated March 16, 2017. Before further flight after
accomplishing the reinforcement, or within 60 days after the
effective date of this AD, whichever occurs later: Revise the
maintenance or inspection program, as applicable, by incorporating
the inspection requirements that include threshold and repetitive
inspection times as specified in the SDIR of Bombardier REO 601R-53-
61-5828, Revision A, dated March 16, 2017.
(n) No Alternative Actions or Intervals
After the maintenance or inspection program has been revised as
required by paragraph (j)(3), (l)(2), or (m) of this AD, no
alternative actions (e.g., inspections) or intervals may be used
unless the actions or intervals are approved as an AMOC in
accordance with the procedures specified in paragraph (p)(1) of this
AD.
(o) Terminating Actions for Paragraph (g) of This AD
(1) Accomplishment of the actions required by paragraph (j) or
(l) of this AD terminates the requirements of paragraph (g) of this
AD, for the repaired area only.
(2) Accomplishment of the actions required by paragraph (m) of
this AD terminates the requirements of paragraph (g) of this AD.
(3) For airplanes on which the actions required by paragraph (j)
or (l) of this AD have been done and on which the modification and
inspection specified in REO 601R-53-61-1230, Revision F, dated
October 31, 2011, have been done and there were no inspection
findings: The actions required by paragraph (g) of this AD are
terminated.
(p) Credit for Previous Actions
(1) This paragraph provides credit for the actions required by
paragraphs (k)(1) and (k)(2) of this AD, if those repairs were done
before the effective date of this AD using a method approved by the
Manager, New York ACO Branch, FAA; TCCA; or Bombardier, Inc.'s TCCA
DAO; which references TCCA AD CF-2011-30, dated August 24, 2011, or
AD CF-2011-30R1, dated November 1, 2016.
(2) This paragraph provides credit for the actions required by
paragraph (k)(2) of this AD, if those actions were performed before
the effective date of this AD using the service information
specified in paragraph (p)(2)(i), (p)(2)(ii), (p)(2)(iii),
(p)(2)(iv), (p)(2)(v), or (p)(2)(vi) of this AD, provided that the
maintenance or inspection program is revised by incorporating the
inspection requirements at the threshold and repetitive inspection
times specified in the SDIR of Bombardier REO 601R-53-61-1230,
Revision F, dated November 7, 2011.
[[Page 26556]]
(i) Bombardier REO 601R-53-61-1230, dated February 10, 2005.
(ii) Bombardier REO 601R-53-61-1230, Revision A, dated November
6, 2009.
(iii) Bombardier REO 601R-53-61-1230, Revision B, dated October
5, 2005.
(iv) Bombardier REO 601R-53-61-1230, Revision C, dated November
10, 2005.
(v) Bombardier REO 601R-53-61-1230, Revision D, dated July 19,
2006.
(vi) Bombardier REO 601R-53-61-1230, Revision E, dated August
18, 2011.
(3) This paragraph provides credit for the actions required by
paragraph (k)(2) of this AD, if those actions were performed before
the effective date of this AD using the service information
specified in paragraph (p)(3)(i), (p)(3)(ii), (p)(3)(iii),
(p)(3)(iv), or (p)(3)(v) of this AD, provided that the maintenance
or inspection program is revised by incorporating the inspection
requirements at the threshold and repetitive inspection times
specified in the SDIR of Bombardier REO 601R-53-61-1285, Revision E,
date October 31, 2016.
(i) Bombardier REO 601R-53-61-1285, dated March 24, 2005.
(ii) Bombardier REO 601R-53-61-1285, Revision A, dated November
6, 2009.
(iii) Bombardier REO 601R-53-61-1285, Revision B, dated April
14, 2010.
(iv) Bombardier REO 601R-53-61-1285, Revision C, dated August
19, 2011.
(v) Bombardier REO 601R-53-61-1285, Revision D, dated October
31, 2011.
(4) This paragraph provides credit for the actions required by
paragraph (k)(2) of this AD if those actions were performed before
the effective date of this AD using the service information
specified in paragraph (p)(4)(i), (p)(4)(ii), (p)(4)(iii),
(p)(4)(iv), (p)(4)(v), or (p)(4)(vi) of this AD, provided that the
maintenance or inspection program is revised by incorporating the
inspection requirements at the threshold and repetitive inspection
times specified in the SDIR of Bombardier REO 601R-53-61-1541,
Revision F, dated November 12, 2014.
(i) Bombardier REO 601R-53-61-1541, dated November 27, 2005.
(ii) Bombardier REO 601R-53-61-1541, Revision A, dated February
8, 2008.
(iii) Bombardier REO 601R-53-61-1541, Revision B, dated March
16, 2009.
(iv) Bombardier REO 601R-53-61-1541, Revision C, dated August
19, 2011.
(v) Bombardier REO 601R-53-61-1541, Revision D, dated October
31, 2011.
(vi) Bombardier REO 601R-53-61-1541, Revision E, dated November
5, 2013.
(5) This paragraph provides credit for the actions required by
paragraph (m) of this AD, if those actions were performed before the
effective date of this AD using Bombardier REO 601R-53-61-5828,
dated November 1, 2016, provided that the maintenance or inspection
program is revised by incorporating the inspection requirements at
the threshold and repetitive inspection times specified in the SDIR
of Bombardier REO 601R-53-61-5828, Revision A, dated March 16, 2017.
(q) Other FAA AD Provisions
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York ACO Branch, FAA, has the authority to approve AMOCs for this
AD, if requested using the procedures found in 14 CFR 39.19. In
accordance with 14 CFR 39.19, send your request to your principal
inspector or local Flight Standards District Office, as appropriate.
If sending information directly to the manager of the certification
office, send it to ATTN: Program Manager, Continuing Operational
Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410,
Westbury, New York 11590; telephone: 516-228-7300; fax: 516-794-
5531.
(i) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(ii) AMOCs approved previously for AD 2012-25-02 are approved as
AMOCs for the corresponding provisions in paragraphs (g), (h), and
(i) of this AD.
(2) Contacting the Manufacturer: For any requirement in this AD
to obtain corrective actions from a manufacturer, the action must be
accomplished using a method approved by the Manager, New York ACO
Branch, FAA; or TCCA; or Bombardier Inc.'s TCCA DAO. If approved by
the DAO, the approval must include the DAO-authorized signature.
(r) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian Airworthiness Directive CF-2011-30R2, dated June 12,
2017, for related information. This MCAI may be found in the AD
docket on the internet at https://www.regulations.gov by searching
for and locating Docket No. FAA-2018-0794.
(2) For more information about this AD, contact Aziz Ahmed,
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA,
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7329; fax 516-794-5531.
(3) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (s)(5) and (s)(6) of this AD.
(s) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(3) The following service information was approved for IBR on
July 12, 2019.
(i) Bombardier Repair Engineering Order 601R-53-61-1230,
Revision F, dated October 31, 2011.
(ii) Bombardier Repair Engineering Order 601R-53-61-1240,
Revision D, dated October 31, 2016.
(iii) Bombardier Repair Engineering Order 601R-53-61-1285,
Revision E, dated October 31, 2016.
(iv) Bombardier Repair Engineering Order 601R-53-61-1541,
Revision F, dated November 12, 2014.
(v) Bombardier Repair Engineering Order 601R-53-61-5828,
Revision A, dated March 16, 2017.
(4) The following service information was approved for IBR on
January 16, 2013 (77 FR 73902, December 12, 2012).
(i) Bombardier Temporary Revision 2B-2187, dated June 22, 2011,
to Appendix B-Airworthiness Limitations, of Part 2 of the Bombardier
CL-600-2B19 Maintenance Requirements Manual.
(ii) [Reserved]
(5) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; Widebody Customer Response Center
North America toll-free telephone 1-866-538-1247 or direct-dial
telephone 514-855-5000; fax 514-855-7401; email
[email protected]; internet https://www.bombardier.com.
(6) You may view this service information at the FAA, Transport
Standards Branch, 2200 South 216th St., Des Moines, WA. For
information on the availability of this material at the FAA, call
206-231-3195.
(7) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Des Moines, Washington, on April 19, 2019,
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2019-11956 Filed 6-6-19; 8:45 am]
BILLING CODE 4910-13-P
