Airworthiness Directives; Bombardier, Inc., Airplanes, 42209-42211 [2018-17754]
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Federal Register / Vol. 83, No. 162 / Tuesday, August 21, 2018 / Rules and Regulations
(v) RR ASB Mk. 601–22 Number 72–A207,
Rev. 1, dated June 2017.
(2) Reserved.
(h) Installation Prohibition
After the effective date of this AD, do not
install any Group A component identified in
Table 1 of the RR ASBs in paragraph (g)(1)(i)
through (v) of this AD into any engine, or
return any engine to service with any affected
part installed, if the affected part exceeds the
revised life limit specified in the applicable
ASB.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, ECO Branch, FAA, may
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 the attention of the person
identified in paragraph (j)(1) of this AD. You
may email your request to: ANE-AD-AMOC@
faa.gov.
(2) 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.
sradovich on DSK3GMQ082PROD with RULES
(j) Related Information
(1) For more information about this AD,
contact Herman Mak, Aerospace Engineer,
ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: 781–238–
7147; fax: 781–238–7199; email:
herman.mak@faa.gov.
(2) Refer to European Aviation Safety
Agency (EASA) AD 2017–0148, dated August
15, 2017, for more information. You may
examine the EASA AD on the internet at
https://www.regulations.gov by searching for
and locating Docket No. FAA–2017–1108.
(k) 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) Rolls-Royce plc (RR) Alert Service
Bulletin (ASB) Mk. 521 Number 72–A408,
Circulation A (Revision 1), dated June 2017.
(ii) RR ASB Mk. 521 Number 72–A408,
Circulation B (Revision 1), dated June 2017.
(iii) RR ASB Mk. 522 Number 72–A413,
Circulation A (Revision 1), dated June 2017.
(iv) RR ASB Mk. 522 Number 72–A412,
Circulation B (Revision 1), dated June 2017.
(v) RR ASB Mk. 601–22 Number 72–A207,
Rev. 1, dated June 2017.
(3) For service information identified in
this AD, contact DA Services Operations
Room at Rolls-Royce plc, Defense Sector
Bristol, WH–70, P.O. Box 3, Filton, Bristol
BS34 7QE, United Kingdom; phone: +44 (0)
117 97 90700; fax: +44 (0) 117 97 95498;
email: defence-operations-room@rollsroyce.com.
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(4) You may view this service information
at FAA, Engine & Propeller Standards
Branch, 1200 District Avenue, Burlington,
MA, 01803. For information on the
availability of this material at the FAA, call
781–238–7759.
(5) 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 Burlington, Massachusetts, on
August 10, 2018.
Karen M. Grant,
Acting Manager, Engine and Propeller
Standards Branch, Aircraft Certification
Service.
[FR Doc. 2018–18021 Filed 8–20–18; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2018–0072; Product
Identifier 2017–NM–082–AD; Amendment
39–19363; AD 2018–17–09]
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) 2014–05–
28, which applied to certain
Bombardier, Inc., Model DHC–8–400
series airplanes. AD 2014–05–28
required revising the maintenance or
inspection program, as applicable. This
AD requires revising the maintenance or
inspection program, as applicable, to
include a revised task. This AD was
prompted by a determination that the
interval from Maintenance Review
Board (MRB) task number 323100–202
should not be escalated, and that
Certification Maintenance Requirements
(CMR) task number 323100–102 should
be applicable to all Model DHC–8–400
series airplanes, regardless of which
main landing gear (MLG) up-lock
assembly is installed. We are issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective September
25, 2018.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of September 25, 2018.
SUMMARY:
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42209
For service information
identified in this final rule, 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 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–2018–0072.
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–
0072; 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
Docket Operations, 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:
Darren Gassetto, Aerospace Engineer,
Airframe and Mechanical Systems
Section, FAA, New York ACO Branch,
1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516–
228–7323; fax 516–794–5531; email 9avs-nyaco-cos@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2014–05–28,
Amendment 39–17800 (79 FR 18611,
April 3, 2014) (‘‘AD 2014–05–28’’). AD
2014–05–28 applied to certain
Bombardier, Inc., Model DHC–8–400
series airplanes. The NPRM published
in the Federal Register on February 9,
2018 (83 FR 5746). The NPRM was
prompted by our determination that the
interval from MRB task number 323100–
202 should not be escalated, and that
CMR task number 323100–102 should
be applicable to all Model DHC–8–400
series airplanes, regardless of which
MLG up-lock assembly is installed.
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian AD
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Federal Register / Vol. 83, No. 162 / Tuesday, August 21, 2018 / Rules and Regulations
CF–2017–15, effective May 29, 2017
(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 series airplanes. The
MCAI states:
[Canadian] AD CF–2012–21 [which
corresponds to FAA AD 2014–05–28] was
issued to mandate the incorporation of
Maintenance Review Board (MRB) task
number 323100–202. As in-service
experience has shown that the interval for
MRB task number 323100–202 should not be
escalated, Bombardier has introduced onestar CMR task number 323100–102 to prevent
task escalation. Bombardier has also revised
the applicability of MRB task number
323100–202 to be applicable to the entire
DHC–8–400/-401/-402 fleet, regardless of
which main landing gear (MLG) up-lock
assembly part number is installed. This
revised applicability has resulted in CMR
task number 323100–102 also being made
applicable to the entire DHC–8–400/-401/402 fleet, regardless of MLG up-lock
assembly part number installation.
This [Canadian] AD mandates the
incorporation of CMR task number 323100–
102 [into the maintenance or inspection
program, as applicable].
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–
0072.
Comments
We gave the public the opportunity to
participate in developing this AD. The
following presents the comment
received on the NPRM and the FAA’s
response to that comment.
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Request To Provide Actions for
Operators With Task Already Included
in Maintenance or Inspection Program
Horizon Air requested that the
proposed AD be revised to address
operators that have already revised their
maintenance or inspection program to
include the information specified in
CMR task number 323100–102 of Q400
Dash 8 (Bombardier) Temporary
Revision (TR) ALI–0168, dated October
31, 2016 (‘‘Bombardier TR ALI–0168’’).
The commenter stated that paragraphs
(h) and (i) of the proposed AD
established compliance times and a
method for the initial functional check
of CMR task number 323100–102. The
commenter also noted that the method
of compliance for the initial functional
check in paragraph (i) of the proposed
AD is based on accomplishing CMR task
number ‘‘32100–202.’’ We infer the
commenter meant CMR task number
‘‘323100–102.’’ The commenter stated
that this does not address operators that
have the CMR task already in place.
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We do not agree with the commenter’s
request. We contacted the commenter
and, upon further discussion, it was
determined that paragraph (i) of this AD
does address the commenter’s request
regarding what operators that already
have CMR task number 323100–102 in
place should do. The commenter stated
that it originally submitted the comment
based on a misunderstanding and it
intended to withdraw the comment. We
have not changed this AD regarding this
issue.
Conclusion
We reviewed the available data,
including the comment received, and
determined that air safety and the
public interest require adopting this AD
as proposed, except for minor editorial
changes. We have determined that these
minor changes:
• Are consistent with the intent that
was proposed in the NPRM for
correcting the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
Related Service Information Under
1 CFR Part 51
Bombardier has issued Q400 Dash 8
(Bombardier) Temporary Revision (TR)
ALI–0168, dated October 31, 2016. The
service information describes CMR task
number 323100–102, ‘‘Functional Check
of the Main Landing Gear Uplock
Assembly Latch.’’ 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 69
airplanes of U.S. registry. We estimate
the following costs to comply with this
AD:
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).
Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
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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 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,
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Federal Register / Vol. 83, No. 162 / Tuesday, August 21, 2018 / Rules and Regulations
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)
2014–05–28, Amendment 39–17800 (79
FR 18611, April 3, 2014), and adding
the following new AD:
■
2018–17–09 Bombardier, Inc.: Amendment
39–19363; Docket No. FAA–2018–0072;
Product Identifier 2017–NM–082–AD.
(a) Effective Date
This AD is effective September 25, 2018.
(b) Affected ADs
This AD replaces AD 2014–05–28,
Amendment 39–17800 (79 FR 18611, April 3,
2014).
(c) Applicability
This AD applies to Bombardier, Inc.,
Model DHC–8–400, -401, and -402 airplanes,
certificated in any category, serial numbers
4001, 4003 and subsequent.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing gear.
(e) Reason
This AD was prompted by reports of
excessive wear on the lower latch surface of
the main landing gear (MLG) up-lock hook.
This AD was also prompted by a
determination that, the maintenance or
inspection program, as applicable, must be
revised to include a new task. We are issuing
this AD to detect and correct up-lock hooks
worn beyond the wear limit, which could
prevent the successful extension of the MLG
using the primary landing gear extension
system, which in combination with an
alternate extension system failure could
result in the inability to extend the MLG.
sradovich on DSK3GMQ082PROD with RULES
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Maintenance or Inspection Program
Revision
Within 30 days after the effective date of
this AD, revise the maintenance or inspection
program, as applicable, to incorporate the
information specified in Certification
Maintenance Requirements (CMR) task
number 323100–102 of Q400 Dash 8
(Bombardier) Temporary Revision (TR) ALI–
0168, dated October 31, 2016 (‘‘Bombardier
TR ALI–0168’’). The applicable maintenance
or inspection program revision required by
this paragraph may be done by inserting a
copy of Bombardier TR ALI–0168, to Section
1–32, Landing Gear Maintenance Program, of
Maintenance Review Board (MRB) Report
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Part 2, Bombardier Q400 Dash 8 Maintenance
Requirements Manual, Product Support
Manual (PSM) 1–84–7. When this temporary
revision has been included in general
revisions of the PSM, the general revisions
may be inserted in the maintenance or
inspection program, as applicable, provided
the relevant information in the general
revision is identical to that in Bombardier TR
ALI–0168.
(h) Initial Functional Check Compliance
Times
For MLG up-lock assembly latches that
have accumulated flight cycles which exceed
the CMR task number 323100–102 interval
specified in Bombardier TR ALI–0168:
Perform the initial CMR task number
323100–102 functional check as specified in
Bombardier TR ALI–0168 using the
applicable compliance time specified in
paragraph (h)(1), (h)(2), or (h)(3) of this AD.
(1) For MLG up-lock assembly latches that
have 14,200 total flight cycles or more as of
the effective date of this AD: The compliance
time for doing the initial functional check is
within 800 flight cycles after the effective
date of this AD.
(2) For MLG up-lock assembly latches that
have 11,600 total flight cycles or more, but
fewer than 14,200 total flight cycles, as of the
effective date of this AD: The compliance
time for doing the initial functional check is
within 1,600 flight cycles after the effective
date of this AD, but not to exceed 15,000 total
flight cycles on the up-lock assembly latch.
(3) For MLG up-lock assembly latches with
fewer than 11,600 total flight cycles as of the
effective date of this AD: The compliance
time for doing the initial functional check is
within 3,000 flight cycles after the effective
date of this AD, but not to exceed 13,200 total
flight cycles on the up-lock assembly latch.
(i) Method of Compliance for Initial
Functional Check
Accomplishing CMR task number 323100–
102 of Bombardier TR MRB–66, dated
December 7, 2011, to Section 1–32, Landing
Gear Maintenance Program, of MRB Report
Part 1, Bombardier Q400 Dash 8 Maintenance
Requirements Manual, PSM 1–84–7, within
3,000 flight cycles before the effective date of
this AD, is a method of compliance for the
initial functional check required by CMR task
number 323100–102 as specified in
Bombardier TR ALI–0168.
(j) Other FAA AD Provisions
The following provisions also apply to this
AD:
(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 ACO, send it to ATTN:
Program Manager, Continuing Operational
Safety, FAA, New York ACO Branch, 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,
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42211
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(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 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.
(k) Related Information
(1) Refer to Mandatory Continuing
Airworthiness Information (MCAI) Canadian
AD CF–2017–15, effective May 29, 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–2018–0072.
(2) For more information about this AD,
contact Darren Gassetto, Aerospace Engineer,
Airframe and Mechanical Systems Section,
FAA, New York ACO Branch, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590;
telephone 516–228–7323; fax 516–794–5531;
email 9-avs-nyaco-cos@faa.gov.
(3) Service information identified in this
AD that is not incorporated by reference is
available at the addresses specified in
paragraphs (l)(3) and (l)(4) of this AD.
(l) 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.
(i) Q400 Dash 8 (Bombardier) Temporary
Revision (TR) ALI–0168, dated October 31,
2016.
(ii) Reserved.
(3) 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.
(4) 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.
(5) 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
August 9, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division,
Aircraft Certification Service.
[FR Doc. 2018–17754 Filed 8–20–18; 8:45 am]
BILLING CODE 4910–13–P
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]]>Agencies
[Federal Register Volume 83, Number 162 (Tuesday, August 21, 2018)]
[Rules and Regulations]
[Pages 42209-42211]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-17754]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2018-0072; Product Identifier 2017-NM-082-AD; Amendment
39-19363; AD 2018-17-09]
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) 2014-05-28,
which applied to certain Bombardier, Inc., Model DHC-8-400 series
airplanes. AD 2014-05-28 required revising the maintenance or
inspection program, as applicable. This AD requires revising the
maintenance or inspection program, as applicable, to include a revised
task. This AD was prompted by a determination that the interval from
Maintenance Review Board (MRB) task number 323100-202 should not be
escalated, and that Certification Maintenance Requirements (CMR) task
number 323100-102 should be applicable to all Model DHC-8-400 series
airplanes, regardless of which main landing gear (MLG) up-lock assembly
is installed. We are issuing this AD to address the unsafe condition on
these products.
DATES: This AD is effective September 25, 2018.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September
25, 2018.
ADDRESSES: For service information identified in this final rule,
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: [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-2018-0072.
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-
0072; 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 Docket Operations, 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: Darren Gassetto, Aerospace Engineer,
Airframe and Mechanical Systems Section, FAA, New York ACO Branch, 1600
Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516-228-7323;
fax 516-794-5531; email [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2014-05-28, Amendment 39-17800 (79 FR 18611,
April 3, 2014) (``AD 2014-05-28''). AD 2014-05-28 applied to certain
Bombardier, Inc., Model DHC-8-400 series airplanes. The NPRM published
in the Federal Register on February 9, 2018 (83 FR 5746). The NPRM was
prompted by our determination that the interval from MRB task number
323100-202 should not be escalated, and that CMR task number 323100-102
should be applicable to all Model DHC-8-400 series airplanes,
regardless of which MLG up-lock assembly is installed.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD
[[Page 42210]]
CF-2017-15, effective May 29, 2017 (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 series airplanes. The MCAI states:
[Canadian] AD CF-2012-21 [which corresponds to FAA AD 2014-05-
28] was issued to mandate the incorporation of Maintenance Review
Board (MRB) task number 323100-202. As in-service experience has
shown that the interval for MRB task number 323100-202 should not be
escalated, Bombardier has introduced one-star CMR task number
323100-102 to prevent task escalation. Bombardier has also revised
the applicability of MRB task number 323100-202 to be applicable to
the entire DHC-8-400/-401/-402 fleet, regardless of which main
landing gear (MLG) up-lock assembly part number is installed. This
revised applicability has resulted in CMR task number 323100-102
also being made applicable to the entire DHC-8-400/-401/-402 fleet,
regardless of MLG up-lock assembly part number installation.
This [Canadian] AD mandates the incorporation of CMR task number
323100-102 [into the maintenance or inspection program, as
applicable].
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-
0072.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comment received on the NPRM and
the FAA's response to that comment.
Request To Provide Actions for Operators With Task Already Included in
Maintenance or Inspection Program
Horizon Air requested that the proposed AD be revised to address
operators that have already revised their maintenance or inspection
program to include the information specified in CMR task number 323100-
102 of Q400 Dash 8 (Bombardier) Temporary Revision (TR) ALI-0168, dated
October 31, 2016 (``Bombardier TR ALI-0168''). The commenter stated
that paragraphs (h) and (i) of the proposed AD established compliance
times and a method for the initial functional check of CMR task number
323100-102. The commenter also noted that the method of compliance for
the initial functional check in paragraph (i) of the proposed AD is
based on accomplishing CMR task number ``32100-202.'' We infer the
commenter meant CMR task number ``323100-102.'' The commenter stated
that this does not address operators that have the CMR task already in
place.
We do not agree with the commenter's request. We contacted the
commenter and, upon further discussion, it was determined that
paragraph (i) of this AD does address the commenter's request regarding
what operators that already have CMR task number 323100-102 in place
should do. The commenter stated that it originally submitted the
comment based on a misunderstanding and it intended to withdraw the
comment. We have not changed this AD regarding this issue.
Conclusion
We reviewed the available data, including the comment received, and
determined that air safety and the public interest require adopting
this AD as proposed, except for minor editorial changes. We have
determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related Service Information Under 1 CFR Part 51
Bombardier has issued Q400 Dash 8 (Bombardier) Temporary Revision
(TR) ALI-0168, dated October 31, 2016. The service information
describes CMR task number 323100-102, ``Functional Check of the Main
Landing Gear Uplock Assembly Latch.'' 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 69 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
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).
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 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,
[[Page 42211]]
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)
2014-05-28, Amendment 39-17800 (79 FR 18611, April 3, 2014), and adding
the following new AD:
2018-17-09 Bombardier, Inc.: Amendment 39-19363; Docket No. FAA-
2018-0072; Product Identifier 2017-NM-082-AD.
(a) Effective Date
This AD is effective September 25, 2018.
(b) Affected ADs
This AD replaces AD 2014-05-28, Amendment 39-17800 (79 FR 18611,
April 3, 2014).
(c) Applicability
This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and
-402 airplanes, certificated in any category, serial numbers 4001,
4003 and subsequent.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
gear.
(e) Reason
This AD was prompted by reports of excessive wear on the lower
latch surface of the main landing gear (MLG) up-lock hook. This AD
was also prompted by a determination that, the maintenance or
inspection program, as applicable, must be revised to include a new
task. We are issuing this AD to detect and correct up-lock hooks
worn beyond the wear limit, which could prevent the successful
extension of the MLG using the primary landing gear extension
system, which in combination with an alternate extension system
failure could result in the inability to extend the MLG.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Maintenance or Inspection Program Revision
Within 30 days after the effective date of this AD, revise the
maintenance or inspection program, as applicable, to incorporate the
information specified in Certification Maintenance Requirements
(CMR) task number 323100-102 of Q400 Dash 8 (Bombardier) Temporary
Revision (TR) ALI-0168, dated October 31, 2016 (``Bombardier TR ALI-
0168''). The applicable maintenance or inspection program revision
required by this paragraph may be done by inserting a copy of
Bombardier TR ALI-0168, to Section 1-32, Landing Gear Maintenance
Program, of Maintenance Review Board (MRB) Report Part 2, Bombardier
Q400 Dash 8 Maintenance Requirements Manual, Product Support Manual
(PSM) 1-84-7. When this temporary revision has been included in
general revisions of the PSM, the general revisions may be inserted
in the maintenance or inspection program, as applicable, provided
the relevant information in the general revision is identical to
that in Bombardier TR ALI-0168.
(h) Initial Functional Check Compliance Times
For MLG up-lock assembly latches that have accumulated flight
cycles which exceed the CMR task number 323100-102 interval
specified in Bombardier TR ALI-0168: Perform the initial CMR task
number 323100-102 functional check as specified in Bombardier TR
ALI-0168 using the applicable compliance time specified in paragraph
(h)(1), (h)(2), or (h)(3) of this AD.
(1) For MLG up-lock assembly latches that have 14,200 total
flight cycles or more as of the effective date of this AD: The
compliance time for doing the initial functional check is within 800
flight cycles after the effective date of this AD.
(2) For MLG up-lock assembly latches that have 11,600 total
flight cycles or more, but fewer than 14,200 total flight cycles, as
of the effective date of this AD: The compliance time for doing the
initial functional check is within 1,600 flight cycles after the
effective date of this AD, but not to exceed 15,000 total flight
cycles on the up-lock assembly latch.
(3) For MLG up-lock assembly latches with fewer than 11,600
total flight cycles as of the effective date of this AD: The
compliance time for doing the initial functional check is within
3,000 flight cycles after the effective date of this AD, but not to
exceed 13,200 total flight cycles on the up-lock assembly latch.
(i) Method of Compliance for Initial Functional Check
Accomplishing CMR task number 323100-102 of Bombardier TR MRB-
66, dated December 7, 2011, to Section 1-32, Landing Gear
Maintenance Program, of MRB Report Part 1, Bombardier Q400 Dash 8
Maintenance Requirements Manual, PSM 1-84-7, within 3,000 flight
cycles before the effective date of this AD, is a method of
compliance for the initial functional check required by CMR task
number 323100-102 as specified in Bombardier TR ALI-0168.
(j) Other FAA AD Provisions
The following provisions also apply to this AD:
(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 ACO, send it
to ATTN: Program Manager, Continuing Operational Safety, FAA, New
York ACO Branch, 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.
(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 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.
(k) Related Information
(1) Refer to Mandatory Continuing Airworthiness Information
(MCAI) Canadian AD CF-2017-15, effective May 29, 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-2018-0072.
(2) For more information about this AD, contact Darren Gassetto,
Aerospace Engineer, Airframe and Mechanical Systems Section, FAA,
New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7323; fax 516-794-5531; email [email protected].
(3) Service information identified in this AD that is not
incorporated by reference is available at the addresses specified in
paragraphs (l)(3) and (l)(4) of this AD.
(l) 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.
(i) Q400 Dash 8 (Bombardier) Temporary Revision (TR) ALI-0168,
dated October 31, 2016.
(ii) Reserved.
(3) 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: [email protected];
internet: https://www.bombardier.com.
(4) 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.
(5) 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 August 9, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-17754 Filed 8-20-18; 8:45 am]
BILLING CODE 4910-13-P
