Airworthiness Directives; Bombardier, Inc. Airplanes, 48968-48972 [2014-19150]
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48968
Federal Register / Vol. 79, No. 160 / Tuesday, August 19, 2014 / Rules and Regulations
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changed 233W3202–12 panel is 233W3202–
18, and the correct part number for the
changed 233W3202–13 panel is 233W3202–
19.
(ii) Put back the P210 power panel to the
correct standard, in accordance with the
Accomplishment Instructions of GE Aviation
Service Bulletin 6000ELM–24–614, Revision
1, dated November 9, 2009; or GE Aviation
Service Bulletin 6200ELM–24–616, Revision
1, dated March 5, 2010.
(2) This paragraph provides credit for the
actions specified in paragraph (i)(1) of this
AD, if those actions were performed before
the effective date of this AD using Boeing
Service Bulletin 777–23–0176, dated January
9, 2003; or Boeing Service Bulletin 777–23–
0176, Revision 1, dated March 11, 2004;
which are not incorporated by reference in
this AD; provided that the actions specified
in Boeing Service Bulletin 777–23–0141,
dated June 14, 2001, were done prior to or
concurrently with the actions specified in
Boeing Service Bulletin 777–23–0176, dated
January 9, 2003; or Boeing Service Bulletin
777–23–0176, Revision 1, dated March 11,
2004.
(3) This paragraph provides credit for the
actions specified in paragraph (i)(2) of this
AD, if those actions were performed before
the effective date of this AD using Boeing
Service Bulletin 777–24–0087, dated July 24,
2003; or Boeing Service Bulletin 777–24–
0087, Revision 1, dated December 18, 2003;
which are not incorporated by reference in
this AD; provided that the actions specified
in Boeing Service Bulletin 777–24–0087,
dated July 24, 2003; or Boeing Service
Bulletin 777–24–0087, Revision 1, dated
December 18, 2003; were done concurrently
with the actions specified in the service
information identified in paragraphs (j)(3)(i)
through (j)(3)(v) of this AD.
(i) Boeing Service Bulletin 777–24–0077,
dated August 21, 2003, which is not
incorporated by reference in this AD.
(ii) Boeing Service Bulletin 777–24–0077,
Revision 1, dated May 24, 2007, which is not
incorporated by reference in this AD.
(iii) Boeing Service Bulletin 777–24–0077,
Revision 2, dated December 17, 2009, 2007,
which is not incorporated by reference in this
AD.
(iv) Boeing Service Bulletin 777–24–0077,
Revision 3, dated December 6, 2011, 2007,
which is not incorporated by reference in this
AD.
(v) Boeing Service Bulletin 777–24–0077,
Revision 4, dated October 17, 2012.
(k) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, Seattle Aircraft
Certification Office (ACO), 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 ACO, send it to the
attention of the person identified in
paragraph (l) of this AD. Information may be
emailed to: 9-ANM-Seattle-ACO-AMOCRequests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
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or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(3) An AMOC that provides an acceptable
level of safety may be used for any repair
required by this AD if it is approved by the
Boeing Commercial Airplanes Organization
Designation Authorization (ODA) that has
been authorized by the Manager, Seattle
ACO, to make those findings. For a repair
method to be approved, the repair must meet
the certification basis of the airplane and the
approval must specifically refer to this AD.
(6) You may view this service information
at FAA, Transport Airplane Directorate, 1601
Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
(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.
(l) Related Information
(1) For more information about this AD,
contact Ray Mei, Aerospace Engineer,
Systems and Equipment Branch, ANM–130S,
FAA, Seattle Aircraft Certification Office,
1601 Lind Avenue SW., Renton, WA 98057–
3356; phone: 425–917–6467; fax: 425–917–
6590; email: raymont.mei@faa.gov.
(2) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (m)(3), (m)(4), (m)(5), and (m)(6)
of this AD, as applicable.
Issued in Renton, Washington, on August
1, 2014.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
(m) 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 the AD specifies otherwise.
(i) BAE Systems Service Bulletin
233W3202–24–04, Revision 2, dated October
2, 2006.
(ii) Boeing Service Bulletin 777–23–0176,
Revision 2, dated October 26, 2006.
(iii) Boeing Service Bulletin 777–24–0077,
Revision 4, dated October 17, 2012.
(iv) Boeing Service Bulletin 777–24–0087,
Revision 2, dated August 16, 2007.
(v) Boeing Service Bulletin 777–28A0039,
Revision 2, dated September 20, 2010.
(vi) GE Aviation Service Bulletin
6000ELM–24–614, Revision 1, dated
November 9, 2009.
(vii) GE Aviation Service Bulletin
6200ELM–24–616, Revision 1, dated March
5, 2010.
(3) For Boeing service information
identified in this AD, contact Boeing
Commercial Airplanes, Attention: Data &
Services Management, P.O. Box 3707, MC
2H–65, Seattle, WA 98124–2207; telephone
206–544–5000, extension 1; fax 206–766–
5680; Internet https://
www.myboeingfleet.com.
(4) For BAE Systems service information
identified in this AD, contact BAE Systems,
Attention: Commercial Product Support, 600
Main Street, Room S18C, Johnson City, NY
13790–1806; phone: 607–770–3084; fax: 607–
770–3015; email: CS-Customer.Service@
baesystems.com; Internet: https://
www.baesystems-ps.com/customersupport.
(5) For GE service information identified in
this AD, contact GE Aviation, Customer
Support Center, 1 Neumann Way, Cincinnati,
OH 45215; phone: 513–552–3272; email:
cs.techpubs@ge.com; Internet: https://
www.geaviation.com.
14 CFR Part 39
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[FR Doc. 2014–18905 Filed 8–18–14; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
[Docket No. FAA–2014–0129; Directorate
Identifier 2013–NM–105–AD; Amendment
39–17931; AD 2014–16–07]
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) 2011–15–
09 for certain Bombardier, Inc. Model
DHC–8–400, –401, and –402 airplanes.
AD 2011–15–09 required repetitive
inspections for proper operation of the
main landing gear (MLG) alternate
extension system (AES), and corrective
actions if necessary. This new AD
requires, for certain airplanes, new
repetitive inspections for proper
operation of the MLG AES, and
corrective actions if necessary. This new
AD also requires eventually replacing
the MLG AES cam mechanism assembly
with a new assembly, which terminates
the repetitive inspections for those
airplanes. This AD was prompted by a
determination that, for certain airplanes
not affected by AD 2011–15–09, a
different MLG AES cam mechanism
assembly was installed, resulting in
input lever fractures and inability to
open the MLG door; those assemblies
could be subject to the same unsafe
condition in AD 2011–15–09. We are
issuing this AD to prevent improper
operation of the cam mechanism or
rupture of the door release cable, which
SUMMARY:
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Federal Register / Vol. 79, No. 160 / Tuesday, August 19, 2014 / Rules and Regulations
could result in loss of control of the
airplane during landing.
DATES: This AD becomes effective
September 23, 2014.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of September 23, 2014.
The Director of the Federal Register
approved the incorporation by reference
of a certain other publication listed in
this AD as of August 2, 2011 (76 FR
42033, July 18, 2011).
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov/
#!docketDetail;D=FAA-2014-0129; or in
person at the Docket Management
Facility, U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC.
For service information identified in
this AD, contact Bombardier, Inc., QSeries Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5,
Canada; telephone 416–375–4000; fax
416–375–4539; email thd.qseries@
aero.bombardier.com; Internet https://
www.bombardier.com. You may view
this referenced service information at
the FAA, Transport Airplane
Directorate, 1601 Lind Avenue SW.,
Renton, WA. For information on the
availability of this material at the FAA,
call 425–227–1221.
FOR FURTHER INFORMATION CONTACT:
Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems
Branch, ANE–171, FAA, New York
Aircraft Certification Office, 1600
Stewart Avenue, Suite 410, Westbury,
NY 11590; telephone (516) 228–7318;
fax (516) 794–5531.
SUPPLEMENTARY INFORMATION:
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Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011–15–09,
Amendment 39–16756 (76 FR 42033,
July 18, 2011). AD 2011–15–09 applied
to certain Bombardier, Inc. Model DHC–
8–400, –401, and –402 airplanes. The
NPRM published in the Federal
Register on March 5, 2014 (79 FR
12428).
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2011–01R2,
dated May 21, 2013 (referred to after
this as the Mandatory Continuing
Airworthiness Information, or ‘‘the
MCAI’’), to correct an unsafe condition
for certain Bombardier, Inc. Model
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DHC–8–400, –401, and –402 airplanes.
The MCAI states:
Two cases of the main landing gear (MLG)
alternate extension system (AES) cam
mechanism failure were found during line
checks. The cam mechanism operates the
cable to open the MLG door and releases the
MLG uplock in sequence. In the case where
it is necessary to deploy the MLG using the
AES, the failure of the MLG AES cam
mechanism on one side will lead to an unsafe
asymmetrical landing configuration.
Preliminary investigation indicates that the
cam mechanism failure may have occurred
and remained dormant after a previous AES
operation. The cam mechanism may not have
fully returned to the normal rested position.
With the cam mechanism out of normal
rested position, normal powered landing gear
door operation could introduce sufficient
loads to fracture the cam mechanism or
rupture the door release cable.
This [Canadian] AD mandates the initial
and subsequent [detailed] inspections for
proper operation of the MLG AES cam
mechanism, and rectify [repair or replace
cam assembly with new or serviceable cam
assembly] as necessary.
Since the original issue of this [Canadian]
AD, Bombardier Inc. has determined that the
existing inspection procedure is insufficient
for verification of proper MLG AES cam
mechanism operation, and has superseded
this inspection procedure. Revision 1 of this
[Canadian] AD mandates the use of the
revised inspection [and rectification]
procedure.
Prior to the introduction of MLG AES cam
mechanism assembly part number (P/N)
48510–5 as terminating action, an interim
MLG AES cam mechanism assembly P/N
48510–3 was introduced.
Revision 2 of this [Canadian] AD updates
the applicability paragraph, updates the MLG
AES cam mechanism inspection criteria and
mandates the terminating action.
You may examine the MCAI in the
AD docket on the Internet at https://
www.regulations.gov/
#!docketDetail;D=FAA-2014-0129.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comment received. The
commenter supported the NPRM (79 FR
12428, March 5, 2014).
‘‘Contacting the Manufacturer’’
Paragraph in This AD
Since late 2006, we have included a
standard paragraph titled ‘‘Airworthy
Product’’ in all MCAI ADs in which the
FAA develops an AD based on a foreign
authority’s AD.
The MCAI or referenced service
information in an FAA AD often directs
the owner/operator to contact the
manufacturer for corrective actions,
such as a repair. Briefly, the Airworthy
Product paragraph allowed owners/
operators to use corrective actions
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48969
provided by the manufacturer if those
actions were FAA-approved. In
addition, the paragraph stated that any
actions approved by the State of Design
Authority (or its delegated agent) are
considered to be FAA-approved.
In the NPRM (79 FR 12428, March 5,
2014), we proposed to prevent the use
of repairs that were not specifically
developed to correct the unsafe
condition, by requiring that the repair
approval provided by the State of
Design Authority or its delegated agent
specifically refer to this FAA AD. This
change was intended to clarify the
method of compliance and to provide
operators with better visibility of repairs
that are specifically developed and
approved to correct the unsafe
condition. In addition, we proposed to
change the phrase ‘‘its delegated agent’’
to include a design approval holder
(DAH) with State of Design Authority
design organization approval (DOA), as
applicable, to refer to a DAH authorized
to approve required repairs for the
proposed AD.
No comments were provided to the
NPRM (79 FR 12428, March 5, 2014)
about these proposed changes. However,
a comment was provided for an NPRM
having Directorate Identifier 2012–NM–
101–AD (78 FR 78285, December 26,
2013). The commenter stated the
following: ‘‘The proposed wording,
being specific to repairs, eliminates the
interpretation that Airbus messages are
acceptable for approving minor
deviations (corrective actions) needed
during accomplishment of an AD
mandated Airbus service bulletin.’’
This comment has made the FAA
aware that some operators have
misunderstood or misinterpreted the
Airworthy Product paragraph to allow
the owner/operator to use messages
provided by the manufacturer as
approval of deviations during the
accomplishment of an AD-mandated
action. The Airworthy Product
paragraph does not approve messages or
other information provided by the
manufacturer for deviations to the
requirements of the AD-mandated
actions. The Airworthy Product
paragraph only addresses the
requirement to contact the manufacturer
for corrective actions for the identified
unsafe condition and does not cover
deviations from other AD requirements.
However, deviations to AD-required
actions are addressed in 14 CFR 39.17,
and anyone may request the approval
for an alternative method of compliance
to the AD-required actions using the
procedures found in 14 CFR 39.19.
To address this misunderstanding and
misinterpretation of the Airworthy
Product paragraph, we have changed the
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paragraph and retitled it ‘‘Contacting the
Manufacturer.’’ This paragraph now
clarifies that for any requirement in this
AD to obtain corrective actions from a
manufacturer, the actions must be
accomplished using a method approved
by the FAA, TCCA, or Bombardier,
Inc.’s TCCA Design Approval
Organization (DAO).
The Contacting the Manufacturer
paragraph also clarifies that, if approved
by the DAO, the approval must include
the DAO-authorized signature. The DAO
signature indicates that the data and
information contained in the document
are TCCA-approved, which is also FAAapproved. Messages and other
information provided by the
manufacturer that do not contain the
DAO-authorized signature approval are
not TCCA-approved, unless TCCA
directly approves the manufacturer’s
message or other information.
This clarification does not remove
flexibility previously afforded by the
Airworthy Product paragraph.
Consistent with long-standing FAA
policy, such flexibility was never
intended for required actions. This is
also consistent with the
recommendation of the Airworthiness
Directive Implementation Aviation
Rulemaking Committee to increase
flexibility in complying with ADs by
identifying those actions in
manufacturers’ service instructions that
are ‘‘Required for Compliance’’ with
ADs. We continue to work with
manufacturers to implement this
recommendation. But once we
determine that an action is required, any
deviation from the requirement must be
approved as an alternative method of
compliance.
Other commenters to the NPRM
having Directorate Identifier 2012–NM–
101–AD (78 FR 78285, December 26,
2013) pointed out that in many cases the
foreign manufacturer’s service bulletin
and the foreign authority’s MCAI might
have been issued some time before the
FAA AD. Therefore, the DOA might
have provided U.S. operators with an
approved repair, developed with full
awareness of the unsafe condition,
before the FAA AD is issued. Under
these circumstances, to comply with the
FAA AD, the operator would be
required to go back to the
manufacturer’s DOA and obtain a new
approval document, adding time and
expense to the compliance process with
no safety benefit.
Based on these comments, we
removed the requirement that the DAHprovided repair specifically refer to this
AD. Before adopting such a
requirement, the FAA will coordinate
with affected DAHs and verify they are
prepared to implement means to ensure
that their repair approvals consider the
unsafe condition addressed in this AD.
Any such requirements will be adopted
through the normal AD rulemaking
process, including notice-and-comment
procedures, when appropriate.
We also have decided not to include
a generic reference to either the
‘‘delegated agent’’ or ‘‘DAH with State of
Design Authority design organization
approval,’’ but instead we have
provided the specific delegation
approval granted by the State of Design
Authority for the DAH throughout this
AD.
Change to Paragraph (g)(3) of This AD
For clarity purposes, we have revised
paragraph (g)(3) of this AD by adding
new paragraphs (g)(3)(i) and (g)(3)(ii) to
this AD.
Conclusion
We reviewed the available data,
including the comment received, and
determined that air safety and the
public interest require adopting this AD
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 (79 FR
12428, March 5, 2014) for correcting the
unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM (79 FR 12428,
March 5, 2014).
We also determined that these
changes will not increase the economic
burden on any operator or increase the
scope of this AD.
Costs of Compliance
We estimate that this AD affects 75
airplanes of U.S. registry.
ESTIMATED COSTS
Action
Labor cost
Parts cost
Inspection in AD 2011–15–09,
Amendment 39–16756 (76 FR
42033, July 18, 2011).
Inspection [new action] ....................
Up to 24 work-hours × $85 per
hour = up to $2,040 per inspection cycle.
1 work-hour × $85 per hour = $85
per inspection cycle.
4 work-hours × $85 per hour =
$680 [$340 per cam assembly].
Replacement of both cam assemblies [new terminating action].
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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,
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
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14:25 Aug 18, 2014
Jkt 232001
Cost per product
Cost on U.S. operators
$2,609 .................
Up to $4,649 per inspection cycle.
Up to $348,675 per inspection cycle.
$0 ........................
$85 per inspection
cycle.
$80,167 .......................
$6,375 per inspection
cycle.
$601,200.
$7,676 (2 cam assemblies).
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.
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,
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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
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under the criteria of the Regulatory
Flexibility Act.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov/
#!docketDetail;D=FAA-2014-0129; or in
person at the Docket Management
Facility between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal
holidays. The AD docket contains this
AD, the regulatory evaluation, any
comments received, and other
information. The street address for the
Docket Operations office (telephone
800–647–5527) is in the ADDRESSES
section.
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:
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)
2011–15–09, Amendment 39–16756 (76
FR 42033, July 18, 2011), and adding the
following new AD:
■
2014–16–07 Bombardier, Inc.: Amendment
39–17931. Docket No. FAA–2014–0129;
Directorate Identifier 2013–NM–105–AD.
(a) Effective Date
This AD becomes effective September 23,
2014.
(b) Affected ADs
This AD replaces AD 2011–15–09,
Amendment 39–16756 (76 FR 42033, July 18,
2011).
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(c) Applicability
This AD applies to Bombardier, Inc. Model
DHC–8–400, –401, and –402 airplanes,
certificated in any category, serial numbers
4001, 4003 through 4418 inclusive, 4422 and
4423.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing Gear.
(e) Reason
This AD was prompted by a determination
that a different main landing gear (MLG)
alternate extension system (AES) cam
mechanism assembly was installed resulting
VerDate Mar<15>2010
14:25 Aug 18, 2014
Jkt 232001
in input lever fractures and inability to open
the MLG door; those assemblies could be
subject to the same unsafe condition in the
existing AD. We are issuing this AD to
prevent improper operation of the cam
mechanism or rupture of the door release
cable, which could result in loss of control
of the airplane during landing.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Retained Detailed Inspection for Proper
Operation of the MLG
This paragraph restates the requirement in
paragraph (i) of AD 2011–15–09, Amendment
39–16756 (76 FR 42033, July 18, 2011), with
revised service information. For airplanes
with a MLG AES cam mechanism assembly
having part number (P/N) 48510–1: Within
50 flight hours or 10 days after August 2,
2011 (the effective date of AD 2011–15–09,
Amendment 39–16756 (76 FR 42033, July 18,
2011)), whichever occurs first, do a detailed
inspection for proper operation of the MLG
AES cam mechanism, in accordance with
paragraph A) of Bombardier Repair Drawing
8/4–32–0160, Issue 3, dated February 15,
2011; or Bombardier Repair Drawing 8/4–32–
0160, Issue 6, dated June 27, 2012. As of the
effective date of this AD, use only
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012. Repeat the
inspection thereafter at intervals not to
exceed 50 flight hours or 10 days, whichever
occurs first.
(1) If the cam mechanism is found to reset
to the normal rested position without any
sticking or binding, it is operating properly.
(2) If the cam mechanism has not reset to
its normal rested position, or if any sticking
or binding is observed, before further flight,
remove the cam assembly, in accordance
with paragraph A) of Bombardier Repair
Drawing 8/4–32–0160, Issue 3, dated
February 15, 2011; or Bombardier Repair
Drawing 8/4–32–0160, Issue 6, dated June 27,
2012, and do the actions in paragraph (g)(2)(i)
or (g)(2)(ii) of this AD. As of the effective date
of this AD, use only Bombardier Repair
Drawing 8/4–32–0160, Issue 6, dated June 27,
2012.
(i) Repair the cam mechanism assembly,
including doing detailed inspections for
discrepancies (an inspection to determine
proper operation, an inspection for damage,
an inspection for corrosion and cadmium
coating degradation, and inspections to
determine dimensions are within the limits
specified in paragraph B) of Bombardier
Repair Drawing 8/4–32–0160, Issue 3, dated
February 15, 2011; or Bombardier Repair
Drawing 8/4–32–0160 Issue 6, dated June 27,
2012, in accordance with paragraph B) of
Bombardier Repair Drawing 8/4–32–0160,
Issue 3, dated February 15, 2011; and install
the repaired cam assembly in accordance
with paragraph C) of Bombardier Repair
Drawing 8/4–32–0160, Issue 3, dated
February 15, 2011; or Bombardier Repair
Drawing 8/4–32–0160, Issue 6, dated June 27,
2012. As of the effective date of this AD, use
only Bombardier Repair Drawing 8/4–32–
0160, Issue 6, dated June 27, 2012.
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48971
(ii) Install a new or serviceable cam
assembly, in accordance with paragraph C) of
Bombardier Repair Drawing 8/4–32–0160,
Issue 3, dated February 15, 2011; or
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012. As of the
effective date of this AD, use only
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012.
(3) If the cam mechanism is found
damaged or inoperative during the repair
specified in paragraph (g)(2)(i) of this AD; or
if any discrepancies are found and
Bombardier Repair Drawing 8/4–32–0160,
Issue 3, dated February 15, 2011, or
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012, does not specify
repairs for those discrepancies; or repairs
specified in paragraph (g)(2)(i) of this AD
cannot be accomplished: Before further
flight, accomplish paragraph (g)(3)(i) or
(g)(3)(ii) of this AD.
(i) Repair and reinstall using a method
approved by the Manager, New York ACO,
ANE–170, Engine and Propeller Directorate,
FAA; or 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.
(ii) Install a new or serviceable cam
assembly, in accordance with paragraph C) of
Bombardier Repair Drawing 8/4–32–0160,
Issue 3, dated February 15, 2011; or
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012. As of the
effective date of this AD, use only
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012, to install the
cam assembly.
(h) New Inspection for Proper Operation of
the MLG Replacement Part
For airplanes with a MLG AES cam
mechanism assembly having P/N 48510–3:
Within 1,800 flight hours or 9 months after
installation of the assembly, whichever
occurs first after the effective date of this AD,
do a detailed inspection for proper operation
of the MLG AES cam mechanism, in
accordance with paragraph A) of Bombardier
Repair Drawing 8/4–32–0160, Issue 6, dated
June 27, 2012. Repeat the inspection
thereafter at intervals not to exceed 600 flight
hours or 3 months, whichever occurs first.
(1) If the cam mechanism is found to reset
to the normal rested position without any
sticking or binding, it is operating properly.
(2) If the cam mechanism has not reset to
its normal rested position, or if any sticking
or binding is observed, before further flight,
remove the cam assembly, in accordance
with paragraph A) of Bombardier Repair
Drawing 8/4–32–0160, Issue 6, dated June 27,
2012, and do the actions required by
paragraphs (h)(2)(i) or (h)(2)(ii) of this AD.
(i) Repair the cam mechanism assembly,
including doing detailed inspections for
discrepancies (an inspection to determine
proper operation, an inspection for damage,
an inspection for corrosion and cadmium
coating degradation, and inspections to
determine dimensions are within the limits
specified in paragraph B) of Bombardier
Repair Drawing 8/4–32–0160, Issue 6, dated
June 27, 2012), in accordance with paragraph
E:\FR\FM\19AUR1.SGM
19AUR1
48972
Federal Register / Vol. 79, No. 160 / Tuesday, August 19, 2014 / Rules and Regulations
B) of Bombardier Repair Drawing 8/4–32–
0160, Issue 6, dated June 27, 2012; and install
the repaired cam assembly in accordance
with paragraph C) of Bombardier Repair
Drawing 8/4–32–0160, Issue 6, dated June 27,
2012.
(ii) Install a new or serviceable cam
assembly, in accordance with paragraph C) of
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012.
(3) If the cam mechanism is found
damaged or inoperative during the repair
specified in paragraph (h)(2)(i) of this AD; or
if any discrepancies are found and
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012, does not specify
repairs for those discrepancies; or repairs
specified in paragraph (h)(2)(i) of this AD
cannot be accomplished: Before further
flight, do the applicable actions required by
paragraph (h)(3)(i) or (h)(3)(ii) of this AD.
(i) Repair and reinstall using a method
approved by the Manager, ANE–170, New
York ACO, FAA, or TCCA; or Bombardier,
Inc.’s TCCA Design Approval Organization
(DAO). If approved by the DAO, the approval
must include the DAO-authorized signature.
(ii) Install a new or serviceable cam
assembly, in accordance with paragraph C) of
Bombardier Repair Drawing 8/4–32–0160,
Issue 6, dated June 27, 2012.
(i) New Credit for Previous Actions for
Paragraphs (g) and (h) of This AD
This paragraph provides credit for actions
required by paragraphs (g) and (h) of this AD,
if those actions were performed before the
effective date of this AD using Bombardier
Repair Drawing 8/4–32–0160, Issue 5, dated
June 6, 2012, which is not incorporated by
reference in this AD.
(j) New Terminating Action
Within 6,000 flight hours or 36 months
after the effective date of this AD, whichever
occurs first, replace any MLG AES cam
mechanism assembly having P/N 48510–1 or
P/N 48510–3 with a new MLG AES cam
mechanism assembly having P/N 48510–5, in
accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
84–32–100, Revision A, dated August 30,
2012. Accomplishing this replacement
terminates the repetitive inspections required
by this AD.
wreier-aviles on DSK5TPTVN1PROD with RULES
(k) New Credit for Previous Actions for
Paragraph (j) of This AD
This paragraph provides credit for actions
required by paragraph (j) of this AD, if those
actions were performed before the effective
date of this AD using Bombardier Service
Bulletin 84–32–100, dated August 15, 2012,
which is not incorporated by reference in this
AD.
(l) Other FAA AD Provisions
The following provisions also apply to this
AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), ANE–170, 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
VerDate Mar<15>2010
14:25 Aug 18, 2014
Jkt 232001
Office, as appropriate. ATTN: Program
Manager, Continuing Operational Safety,
FAA, New York ACO, 1600 Stewart Avenue,
Suite 410, Westbury, NY 11590; telephone
516–228–7300; fax 516–794–5531. 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. The AMOC approval
letter must specifically reference 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, ANE–170,
Engine and Propeller Directorate, FAA; or
TCCA; or Bombardier, Inc.’s TCCA Design
Approval Organization (DAO). If approved by
the DAO, the approval must include the
DAO-authorized signature.
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.
(m) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
Airworthiness Directive CF–2011–01R2,
dated May 21, 2013, for related information.
You may examine the MCAI in the AD
docket on the Internet at https://
www.regulations.gov/#!docketDetail;D=FAA2014-0129.
(2) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (n)(5) and (n)(6) of this AD.
[Docket No. FAA–2014–0250; Directorate
Identifier 2013–NM–165–AD; Amendment
39–17930; AD 2014–16–06]
(n) 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 September 23, 2014.
(i) Bombardier Repair Drawing 8/4–32–
0160, Issue 6, dated June 27, 2012. The issue
dates for this document are identified only
on sheets 1 and 1A of this document.
(ii) Bombardier Service Bulletin 84–32–
100, Revision A, dated August 30, 2012.
(4) The following service information was
approved for IBR on August 2, 2011 (76 FR
42033, July 18, 2011).
(i) Bombardier Repair Drawing 8/4–32–
0160, Issue 3, dated February 15, 2011. The
issue dates for this document are identified
only on the first page of this document.
(ii) Reserved.
(5) For service information identified in
this AD, contact Bombardier, Inc., Q-Series
Technical Help Desk, 123 Garratt Boulevard,
Toronto, Ontario M3K 1Y5, Canada;
telephone 416–375–4000; fax 416–375–4539;
email thd.qseries@aero.bombardier.com;
Internet https://www.bombardier.com.
(6) You may view this service information
at the FAA, Transport Airplane Directorate,
1601 Lind Avenue SW., Renton, WA. For
information on the availability of this
material at the FAA, call 425–227–1221.
(7) You may view this service information
that is incorporated by reference at the
National Archives and Records
SUMMARY:
PO 00000
Frm 00032
Fmt 4700
Sfmt 4700
Issued in Renton, Washington, on July 30,
2014.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2014–19150 Filed 8–18–14; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
We are adopting a new
airworthiness directive (AD) for certain
Bombardier, Inc. Model CL–600–2B16
(CL–604 Variant) airplanes. This AD
was prompted by reports of in-flight
uncommanded rudder movements. This
AD requires revising the airplane flight
manual (AFM) to incorporate an
uncommanded yaw motion procedure.
We are issuing this AD to prevent inflight uncommanded rudder
movements, which could lead to
structural failure and subsequent loss of
the airplane.
DATES: This AD becomes effective
September 23, 2014.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of September 23, 2014.
ADDRESSES: You may examine the AD
docket on the Internet at https://
www.regulations.gov/
#!docketDetail;D=FAA-2014-0250 or in
person at the Docket Management
Facility, U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC.
For service information identified in
this AD, contact Bombardier, Inc., 400
ˆ
´
Cote-Vertu Road West, Dorval, Quebec
H4S 1Y9, Canada; telephone 514–855–
5000; fax 514–855–7401; email thd.crj@
aero.bombardier.com; Internet https://
E:\FR\FM\19AUR1.SGM
19AUR1
Agencies
[Federal Register Volume 79, Number 160 (Tuesday, August 19, 2014)]
[Rules and Regulations]
[Pages 48968-48972]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2014-19150]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2014-0129; Directorate Identifier 2013-NM-105-AD;
Amendment 39-17931; AD 2014-16-07]
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) 2011-15-09 for
certain Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes. AD
2011-15-09 required repetitive inspections for proper operation of the
main landing gear (MLG) alternate extension system (AES), and
corrective actions if necessary. This new AD requires, for certain
airplanes, new repetitive inspections for proper operation of the MLG
AES, and corrective actions if necessary. This new AD also requires
eventually replacing the MLG AES cam mechanism assembly with a new
assembly, which terminates the repetitive inspections for those
airplanes. This AD was prompted by a determination that, for certain
airplanes not affected by AD 2011-15-09, a different MLG AES cam
mechanism assembly was installed, resulting in input lever fractures
and inability to open the MLG door; those assemblies could be subject
to the same unsafe condition in AD 2011-15-09. We are issuing this AD
to prevent improper operation of the cam mechanism or rupture of the
door release cable, which
[[Page 48969]]
could result in loss of control of the airplane during landing.
DATES: This AD becomes effective September 23, 2014.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of September 23,
2014.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of August
2, 2011 (76 FR 42033, July 18, 2011).
ADDRESSES: You may examine the AD docket on the Internet at https://www.regulations.gov/#!docketDetail;D=FAA-2014-0129; or in person at the
Docket Management Facility, U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC.
For service information identified in this AD, contact Bombardier,
Inc., Q-Series Technical Help Desk, 123 Garratt Boulevard, Toronto,
Ontario M3K 1Y5, Canada; telephone 416-375-4000; fax 416-375-4539;
email thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. You may view this referenced service information at
the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,
WA. For information on the availability of this material at the FAA,
call 425-227-1221.
FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone (516) 228-7318; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2011-15-09, Amendment 39-16756 (76 FR 42033,
July 18, 2011). AD 2011-15-09 applied to certain Bombardier, Inc. Model
DHC-8-400, -401, and -402 airplanes. The NPRM published in the Federal
Register on March 5, 2014 (79 FR 12428).
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2011-01R2, dated May 21, 2013 (referred to after this as the Mandatory
Continuing Airworthiness Information, or ``the MCAI''), to correct an
unsafe condition for certain Bombardier, Inc. Model DHC-8-400, -401,
and -402 airplanes. The MCAI states:
Two cases of the main landing gear (MLG) alternate extension
system (AES) cam mechanism failure were found during line checks.
The cam mechanism operates the cable to open the MLG door and
releases the MLG uplock in sequence. In the case where it is
necessary to deploy the MLG using the AES, the failure of the MLG
AES cam mechanism on one side will lead to an unsafe asymmetrical
landing configuration.
Preliminary investigation indicates that the cam mechanism
failure may have occurred and remained dormant after a previous AES
operation. The cam mechanism may not have fully returned to the
normal rested position. With the cam mechanism out of normal rested
position, normal powered landing gear door operation could introduce
sufficient loads to fracture the cam mechanism or rupture the door
release cable.
This [Canadian] AD mandates the initial and subsequent
[detailed] inspections for proper operation of the MLG AES cam
mechanism, and rectify [repair or replace cam assembly with new or
serviceable cam assembly] as necessary.
Since the original issue of this [Canadian] AD, Bombardier Inc.
has determined that the existing inspection procedure is
insufficient for verification of proper MLG AES cam mechanism
operation, and has superseded this inspection procedure. Revision 1
of this [Canadian] AD mandates the use of the revised inspection
[and rectification] procedure.
Prior to the introduction of MLG AES cam mechanism assembly part
number (P/N) 48510-5 as terminating action, an interim MLG AES cam
mechanism assembly P/N 48510-3 was introduced.
Revision 2 of this [Canadian] AD updates the applicability
paragraph, updates the MLG AES cam mechanism inspection criteria and
mandates the terminating action.
You may examine the MCAI in the AD docket on the Internet at https://www.regulations.gov/#!docketDetail;D=FAA-2014-0129.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comment received. The commenter supported
the NPRM (79 FR 12428, March 5, 2014).
``Contacting the Manufacturer'' Paragraph in This AD
Since late 2006, we have included a standard paragraph titled
``Airworthy Product'' in all MCAI ADs in which the FAA develops an AD
based on a foreign authority's AD.
The MCAI or referenced service information in an FAA AD often
directs the owner/operator to contact the manufacturer for corrective
actions, such as a repair. Briefly, the Airworthy Product paragraph
allowed owners/operators to use corrective actions provided by the
manufacturer if those actions were FAA-approved. In addition, the
paragraph stated that any actions approved by the State of Design
Authority (or its delegated agent) are considered to be FAA-approved.
In the NPRM (79 FR 12428, March 5, 2014), we proposed to prevent
the use of repairs that were not specifically developed to correct the
unsafe condition, by requiring that the repair approval provided by the
State of Design Authority or its delegated agent specifically refer to
this FAA AD. This change was intended to clarify the method of
compliance and to provide operators with better visibility of repairs
that are specifically developed and approved to correct the unsafe
condition. In addition, we proposed to change the phrase ``its
delegated agent'' to include a design approval holder (DAH) with State
of Design Authority design organization approval (DOA), as applicable,
to refer to a DAH authorized to approve required repairs for the
proposed AD.
No comments were provided to the NPRM (79 FR 12428, March 5, 2014)
about these proposed changes. However, a comment was provided for an
NPRM having Directorate Identifier 2012-NM-101-AD (78 FR 78285,
December 26, 2013). The commenter stated the following: ``The proposed
wording, being specific to repairs, eliminates the interpretation that
Airbus messages are acceptable for approving minor deviations
(corrective actions) needed during accomplishment of an AD mandated
Airbus service bulletin.''
This comment has made the FAA aware that some operators have
misunderstood or misinterpreted the Airworthy Product paragraph to
allow the owner/operator to use messages provided by the manufacturer
as approval of deviations during the accomplishment of an AD-mandated
action. The Airworthy Product paragraph does not approve messages or
other information provided by the manufacturer for deviations to the
requirements of the AD-mandated actions. The Airworthy Product
paragraph only addresses the requirement to contact the manufacturer
for corrective actions for the identified unsafe condition and does not
cover deviations from other AD requirements. However, deviations to AD-
required actions are addressed in 14 CFR 39.17, and anyone may request
the approval for an alternative method of compliance to the AD-required
actions using the procedures found in 14 CFR 39.19.
To address this misunderstanding and misinterpretation of the
Airworthy Product paragraph, we have changed the
[[Page 48970]]
paragraph and retitled it ``Contacting the Manufacturer.'' This
paragraph now clarifies that for any requirement in this AD to obtain
corrective actions from a manufacturer, the actions must be
accomplished using a method approved by the FAA, TCCA, or Bombardier,
Inc.'s TCCA Design Approval Organization (DAO).
The Contacting the Manufacturer paragraph also clarifies that, if
approved by the DAO, the approval must include the DAO-authorized
signature. The DAO signature indicates that the data and information
contained in the document are TCCA-approved, which is also FAA-
approved. Messages and other information provided by the manufacturer
that do not contain the DAO-authorized signature approval are not TCCA-
approved, unless TCCA directly approves the manufacturer's message or
other information.
This clarification does not remove flexibility previously afforded
by the Airworthy Product paragraph. Consistent with long-standing FAA
policy, such flexibility was never intended for required actions. This
is also consistent with the recommendation of the Airworthiness
Directive Implementation Aviation Rulemaking Committee to increase
flexibility in complying with ADs by identifying those actions in
manufacturers' service instructions that are ``Required for
Compliance'' with ADs. We continue to work with manufacturers to
implement this recommendation. But once we determine that an action is
required, any deviation from the requirement must be approved as an
alternative method of compliance.
Other commenters to the NPRM having Directorate Identifier 2012-NM-
101-AD (78 FR 78285, December 26, 2013) pointed out that in many cases
the foreign manufacturer's service bulletin and the foreign authority's
MCAI might have been issued some time before the FAA AD. Therefore, the
DOA might have provided U.S. operators with an approved repair,
developed with full awareness of the unsafe condition, before the FAA
AD is issued. Under these circumstances, to comply with the FAA AD, the
operator would be required to go back to the manufacturer's DOA and
obtain a new approval document, adding time and expense to the
compliance process with no safety benefit.
Based on these comments, we removed the requirement that the DAH-
provided repair specifically refer to this AD. Before adopting such a
requirement, the FAA will coordinate with affected DAHs and verify they
are prepared to implement means to ensure that their repair approvals
consider the unsafe condition addressed in this AD. Any such
requirements will be adopted through the normal AD rulemaking process,
including notice-and-comment procedures, when appropriate.
We also have decided not to include a generic reference to either
the ``delegated agent'' or ``DAH with State of Design Authority design
organization approval,'' but instead we have provided the specific
delegation approval granted by the State of Design Authority for the
DAH throughout this AD.
Change to Paragraph (g)(3) of This AD
For clarity purposes, we have revised paragraph (g)(3) of this AD
by adding new paragraphs (g)(3)(i) and (g)(3)(ii) to this AD.
Conclusion
We reviewed the available data, including the comment received, and
determined that air safety and the public interest require adopting
this AD 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 (79 FR 12428, March 5, 2014) for correcting the unsafe condition;
and
Do not add any additional burden upon the public than was
already proposed in the NPRM (79 FR 12428, March 5, 2014).
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this AD.
Costs of Compliance
We estimate that this AD affects 75 airplanes of U.S. registry.
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost on U.S.
Action Labor cost Parts cost Cost per product operators
----------------------------------------------------------------------------------------------------------------
Inspection in AD 2011-15-09, Up to 24 $2,609............ Up to $4,649 per Up to $348,675 per
Amendment 39-16756 (76 FR work[dash]hours x inspection cycle. inspection cycle.
42033, July 18, 2011). $85 per hour = up
to $2,040 per
inspection cycle.
Inspection [new action]......... 1 work-hour x $85 $0................ $85 per inspection $6,375 per
per hour = $85 cycle. inspection cycle.
per inspection
cycle.
Replacement of both cam 4 work-hours x $85 $7,676 (2 cam $80,167........... $601,200.
assemblies [new terminating per hour = $680 assemblies).
action]. [$340 per cam
assembly].
----------------------------------------------------------------------------------------------------------------
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.
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
[[Page 48971]]
under the criteria of the Regulatory Flexibility Act.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov/#!docketDetail;D=FAA-2014-0129; or in person at the
Docket Management Facility between 9 a.m. and 5 p.m., Monday through
Friday, except Federal holidays. The AD docket contains this AD, the
regulatory evaluation, any comments received, and other information.
The street address for the Docket Operations office (telephone 800-647-
5527) is in the ADDRESSES section.
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:
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)
2011-15-09, Amendment 39-16756 (76 FR 42033, July 18, 2011), and adding
the following new AD:
2014-16-07 Bombardier, Inc.: Amendment 39-17931. Docket No. FAA-
2014-0129; Directorate Identifier 2013-NM-105-AD.
(a) Effective Date
This AD becomes effective September 23, 2014.
(b) Affected ADs
This AD replaces AD 2011-15-09, Amendment 39-16756 (76 FR 42033,
July 18, 2011).
(c) Applicability
This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -
402 airplanes, certificated in any category, serial numbers 4001,
4003 through 4418 inclusive, 4422 and 4423.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
Gear.
(e) Reason
This AD was prompted by a determination that a different main
landing gear (MLG) alternate extension system (AES) cam mechanism
assembly was installed resulting in input lever fractures and
inability to open the MLG door; those assemblies could be subject to
the same unsafe condition in the existing AD. We are issuing this AD
to prevent improper operation of the cam mechanism or rupture of the
door release cable, which could result in loss of control of the
airplane during landing.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Retained Detailed Inspection for Proper Operation of the MLG
This paragraph restates the requirement in paragraph (i) of AD
2011-15-09, Amendment 39-16756 (76 FR 42033, July 18, 2011), with
revised service information. For airplanes with a MLG AES cam
mechanism assembly having part number (P/N) 48510-1: Within 50
flight hours or 10 days after August 2, 2011 (the effective date of
AD 2011-15-09, Amendment 39-16756 (76 FR 42033, July 18, 2011)),
whichever occurs first, do a detailed inspection for proper
operation of the MLG AES cam mechanism, in accordance with paragraph
A) of Bombardier Repair Drawing 8/4-32-0160, Issue 3, dated February
15, 2011; or Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated
June 27, 2012. As of the effective date of this AD, use only
Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June 27, 2012.
Repeat the inspection thereafter at intervals not to exceed 50
flight hours or 10 days, whichever occurs first.
(1) If the cam mechanism is found to reset to the normal rested
position without any sticking or binding, it is operating properly.
(2) If the cam mechanism has not reset to its normal rested
position, or if any sticking or binding is observed, before further
flight, remove the cam assembly, in accordance with paragraph A) of
Bombardier Repair Drawing 8/4-32-0160, Issue 3, dated February 15,
2011; or Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June
27, 2012, and do the actions in paragraph (g)(2)(i) or (g)(2)(ii) of
this AD. As of the effective date of this AD, use only Bombardier
Repair Drawing 8/4-32-0160, Issue 6, dated June 27, 2012.
(i) Repair the cam mechanism assembly, including doing detailed
inspections for discrepancies (an inspection to determine proper
operation, an inspection for damage, an inspection for corrosion and
cadmium coating degradation, and inspections to determine dimensions
are within the limits specified in paragraph B) of Bombardier Repair
Drawing 8/4-32-0160, Issue 3, dated February 15, 2011; or Bombardier
Repair Drawing 8/4-32-0160 Issue 6, dated June 27, 2012, in
accordance with paragraph B) of Bombardier Repair Drawing 8/4-32-
0160, Issue 3, dated February 15, 2011; and install the repaired cam
assembly in accordance with paragraph C) of Bombardier Repair
Drawing 8/4-32-0160, Issue 3, dated February 15, 2011; or Bombardier
Repair Drawing 8/4-32-0160, Issue 6, dated June 27, 2012. As of the
effective date of this AD, use only Bombardier Repair Drawing 8/4-
32-0160, Issue 6, dated June 27, 2012.
(ii) Install a new or serviceable cam assembly, in accordance
with paragraph C) of Bombardier Repair Drawing 8/4-32-0160, Issue 3,
dated February 15, 2011; or Bombardier Repair Drawing 8/4-32-0160,
Issue 6, dated June 27, 2012. As of the effective date of this AD,
use only Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June
27, 2012.
(3) If the cam mechanism is found damaged or inoperative during
the repair specified in paragraph (g)(2)(i) of this AD; or if any
discrepancies are found and Bombardier Repair Drawing 8/4-32-0160,
Issue 3, dated February 15, 2011, or Bombardier Repair Drawing 8/4-
32-0160, Issue 6, dated June 27, 2012, does not specify repairs for
those discrepancies; or repairs specified in paragraph (g)(2)(i) of
this AD cannot be accomplished: Before further flight, accomplish
paragraph (g)(3)(i) or (g)(3)(ii) of this AD.
(i) Repair and reinstall using a method approved by the Manager,
New York ACO, ANE-170, Engine and Propeller Directorate, FAA; or
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.
(ii) Install a new or serviceable cam assembly, in accordance
with paragraph C) of Bombardier Repair Drawing 8/4-32-0160, Issue 3,
dated February 15, 2011; or Bombardier Repair Drawing 8/4-32-0160,
Issue 6, dated June 27, 2012. As of the effective date of this AD,
use only Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June
27, 2012, to install the cam assembly.
(h) New Inspection for Proper Operation of the MLG Replacement Part
For airplanes with a MLG AES cam mechanism assembly having P/N
48510-3: Within 1,800 flight hours or 9 months after installation of
the assembly, whichever occurs first after the effective date of
this AD, do a detailed inspection for proper operation of the MLG
AES cam mechanism, in accordance with paragraph A) of Bombardier
Repair Drawing 8/4-32-0160, Issue 6, dated June 27, 2012. Repeat the
inspection thereafter at intervals not to exceed 600 flight hours or
3 months, whichever occurs first.
(1) If the cam mechanism is found to reset to the normal rested
position without any sticking or binding, it is operating properly.
(2) If the cam mechanism has not reset to its normal rested
position, or if any sticking or binding is observed, before further
flight, remove the cam assembly, in accordance with paragraph A) of
Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June 27, 2012,
and do the actions required by paragraphs (h)(2)(i) or (h)(2)(ii) of
this AD.
(i) Repair the cam mechanism assembly, including doing detailed
inspections for discrepancies (an inspection to determine proper
operation, an inspection for damage, an inspection for corrosion and
cadmium coating degradation, and inspections to determine dimensions
are within the limits specified in paragraph B) of Bombardier Repair
Drawing 8/4-32-0160, Issue 6, dated June 27, 2012), in accordance
with paragraph
[[Page 48972]]
B) of Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June 27,
2012; and install the repaired cam assembly in accordance with
paragraph C) of Bombardier Repair Drawing 8/4-32-0160, Issue 6,
dated June 27, 2012.
(ii) Install a new or serviceable cam assembly, in accordance
with paragraph C) of Bombardier Repair Drawing 8/4-32-0160, Issue 6,
dated June 27, 2012.
(3) If the cam mechanism is found damaged or inoperative during
the repair specified in paragraph (h)(2)(i) of this AD; or if any
discrepancies are found and Bombardier Repair Drawing 8/4-32-0160,
Issue 6, dated June 27, 2012, does not specify repairs for those
discrepancies; or repairs specified in paragraph (h)(2)(i) of this
AD cannot be accomplished: Before further flight, do the applicable
actions required by paragraph (h)(3)(i) or (h)(3)(ii) of this AD.
(i) Repair and reinstall using a method approved by the Manager,
ANE-170, New York ACO, FAA, or TCCA; or Bombardier, Inc.'s TCCA
Design Approval Organization (DAO). If approved by the DAO, the
approval must include the DAO-authorized signature.
(ii) Install a new or serviceable cam assembly, in accordance
with paragraph C) of Bombardier Repair Drawing 8/4-32-0160, Issue 6,
dated June 27, 2012.
(i) New Credit for Previous Actions for Paragraphs (g) and (h) of This
AD
This paragraph provides credit for actions required by
paragraphs (g) and (h) of this AD, if those actions were performed
before the effective date of this AD using Bombardier Repair Drawing
8/4-32-0160, Issue 5, dated June 6, 2012, which is not incorporated
by reference in this AD.
(j) New Terminating Action
Within 6,000 flight hours or 36 months after the effective date
of this AD, whichever occurs first, replace any MLG AES cam
mechanism assembly having P/N 48510-1 or P/N 48510-3 with a new MLG
AES cam mechanism assembly having P/N 48510-5, in accordance with
the Accomplishment Instructions of Bombardier Service Bulletin 84-
32-100, Revision A, dated August 30, 2012. Accomplishing this
replacement terminates the repetitive inspections required by this
AD.
(k) New Credit for Previous Actions for Paragraph (j) of This AD
This paragraph provides credit for actions required by paragraph
(j) of this AD, if those actions were performed before the effective
date of this AD using Bombardier Service Bulletin 84-32-100, dated
August 15, 2012, which is not incorporated by reference in this AD.
(l) Other FAA AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), ANE-170, 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. ATTN: Program Manager,
Continuing Operational Safety, FAA, New York ACO, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7300; fax
516-794-5531. 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. The AMOC approval letter must
specifically reference 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,
ANE-170, Engine and Propeller Directorate, FAA; or TCCA; or
Bombardier, Inc.'s TCCA Design Approval Organization (DAO). If
approved by the DAO, the approval must include the DAO-authorized
signature.
(m) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian Airworthiness Directive CF-2011-01R2, dated May 21,
2013, for related information. You may examine the MCAI in the AD
docket on the Internet at https://www.regulations.gov/#!docketDetail;D=FAA-2014-0129.
(2) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (n)(5) and (n)(6) of this AD.
(n) 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
September 23, 2014.
(i) Bombardier Repair Drawing 8/4-32-0160, Issue 6, dated June
27, 2012. The issue dates for this document are identified only on
sheets 1 and 1A of this document.
(ii) Bombardier Service Bulletin 84-32-100, Revision A, dated
August 30, 2012.
(4) The following service information was approved for IBR on
August 2, 2011 (76 FR 42033, July 18, 2011).
(i) Bombardier Repair Drawing 8/4-32-0160, Issue 3, dated
February 15, 2011. The issue dates for this document are identified
only on the first page of this document.
(ii) Reserved.
(5) For service information identified in this AD, contact
Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000;
fax 416-375-4539; email thd.qseries@aero.bombardier.com; Internet
https://www.bombardier.com.
(6) You may view this service information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For
information on the availability of this material at the FAA, call
425-227-1221.
(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 Renton, Washington, on July 30, 2014.
Jeffrey E. Duven,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2014-19150 Filed 8-18-14; 8:45 am]
BILLING CODE 4910-13-P