AD 2018-07-19
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 787-8 | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | The Boeing Company | 787-9 | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
The parking brake and alternate pitch trim module (PBM) may unintentionally disengage, fail to set, fail to release, or become jammed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replacing the PBM and doing a PBM installation test.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 months after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All The Boeing Company Model 787-8 and 787-9 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 787-8 and 787-9 airplanes. This AD was prompted by a report that the parking brake and alternate pitch trim module (PBM) may unintentionally disengage. This AD requires replacing the PBM and doing a PBM installation test. We are issuing this AD to address the unsafe condition on these products.
Applicability Source Text
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(c) Applicability
This AD applies to all The Boeing Company Model 787-8 and 787-9
airplanes, certificated in any category.
Document Text
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[Federal Register Volume 83, Number 73 (Monday, April 16, 2018)]
[Rules and Regulations]
[Pages 16188-16191]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2018-07629]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0553; Product Identifier 2016-NM-208-AD; Amendment
39-19250; AD 2018-07-19]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for all The
Boeing Company Model 787-8 and 787-9 airplanes. This AD was prompted by
a report that the parking brake and alternate pitch trim module (PBM)
may unintentionally disengage. This AD requires replacing the PBM and
doing a PBM installation test. We are issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective May 21, 2018.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 21,
2018.
ADDRESSES: For service information identified in this final rule,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone: 562-797-1717; internet: <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2017-
0553.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2017-
0553; 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 final rule, the regulatory evaluation, any comments
received, and other information. The address for the Docket Office
(phone: 800-647-5527) is 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 20590.
FOR FURTHER INFORMATION CONTACT: Sean Schauer, Aerospace Engineer,
Systems and Equipment Section, FAA, Seattle ACO Branch, 2200 South
216th St., Des Moines, WA 98198; phone and fax: 206-231-3547; email:
<a href="/cdn-cgi/l/email-protection#07546266692954646f667262754761666629606871"><span class="__cf_email__" data-cfemail="4f1c2a2e21611c2c272e3a2a3d0f292e2e61282039">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to all The Boeing Company
Model 787-8 and 787-9 airplanes. The NPRM published in the Federal
Register on June 12, 2017 (82 FR 26872). The NPRM was prompted by a
report that the PBM may unintentionally disengage, fail to set, fail to
release, or become jammed. The NPRM proposed to require replacing the
PBM and doing a PBM installation test.
We are issuing this AD to prevent an unintended parking brake
release, which could result in damage to the airplane and be a hazard
to persons or property on the ground.
Comments
We gave the public the opportunity to participate in developing
this final rule. The following presents the comments received on the
NPRM and the FAA's response to each comment. United Airlines supported
the NPRM.
Request To Revise the Unsafe Condition
Boeing requested that information not related to the unsafe
condition be removed. Boeing stated that the AD should specifically
address the unintended release of the parking brake module. Boeing also
stated that the additional information describes a reliability
improvement that is not related to the unsafe condition of unintended
parking brake release.
We agree with the commenter's request to revise the description of
the unsafe condition accordingly, for the reasons provided.
Request To Revise the Applicability
All Nippon Airways (ANA) requested that no action be required for
airplanes with an original certificate of airworthiness or original
export certificate of airworthiness issued after the effective date of
the AD. ANA commented that the applicability in the proposed AD would
apply to all The Boeing Company Model 787-8 and 787-9 airplanes. ANA
stated that paragraph (g) of the proposed AD is only for airplanes on
which the original certificate of airworthiness or the original export
certificate of airworthiness was issued on or before the effective date
of the AD. ANA also stated that the action that would be required for
airplanes on which the original certificate of airworthiness or the
original export certificate of airworthiness will be issued after the
effective date of this AD is uncertain.
ANA stated that it has already prohibited installation of PBM part
number (P/N) 4260-0037-3 and -4 on any airplane. ANA also stated that
PBM P/N 4260-0037-5 is installed on the airplanes on which the original
certificate of airworthiness or the original export certificate of
[[Page 16189]]
airworthiness will be issued after the effective date of this AD. ANA
commented that therefore, it believes that no action is necessary for
airplanes on which the original certificate of airworthiness or the
original export certificate of airworthiness will be issued after the
effective date of this AD if installation of PBM P/N 4260-0037-3 and -4
is already prohibited before the effective date of this AD.
We disagree with the commenter's request. We have determined that
the affected parts are rotable parts such that these parts could later
be installed on airplanes that were initially delivered with acceptable
parts, thereby subjecting those airplanes to the unsafe condition.
Therefore, all The Boeing Company Model 787-8 and 787-9 airplanes are
subject to the requirements in paragraph (h) of this AD. We do concur
with the commenter that paragraph (g) of this AD only applies to an
airplane with a certificate of airworthiness or an original export
certificate of airworthiness issued on or before the effective date of
this AD. We have not revised the AD in this regard.
Request To Revise the Compliance Time
The Air Line Pilots Association, International (ALPA) requested
that the compliance time in the proposed AD be revised. ALPA stated
that the compliance time of 60 months has been provided for both
inspection and replacement of the affected parts. ALPA commented that
the 60 months for inspection and corrective action is excessive. ALPA
also stated that due to the unobtrusive nature of the inspection for
the affected parts, the compliance time for the inspection should be
re-evaluated and reduced to less than that of the compliance time for
the corrective action.
We disagree with the commenter's request. The compliance time in
this AD is based on FAA analysis of safety risk factors including
consideration of the rulemaking time, as well as the time required to
rework each PBM to the part number 4260-0037-5 configuration. We have
not revised this AD in this regard.
Request To Revise ``In Accordance With'' Language in the Service
Information
American Airlines (AAL) requested that the ``in accordance with''
language in Boeing Service Bulletin B787-81205-SB320028-00, Issue 001,
dated October 31, 2016, be revised. AAL stated that where the service
information proposes accomplishing the actions ``in accordance with''
the airplane maintenance manual (AMM), ``refer to'' should be used
instead so that compliance with paragraph (g)(2) of the proposed AD can
be properly attained. AAL also stated that paragraph (g)(1) of the
proposed AD does not require verification that the PBM was installed
and the installation tested ``in accordance with'' 787 AMM 32-44-01.
We agree with the commenter. We agree that the wording in Boeing
Service Bulletin B787-81205-SB320028-00, Issue 001, dated October 31,
2016, should specify ``refer to'' instead of ``in accordance with''
because it allows operators additional flexibility. For clarification,
we have revised paragraph (g)(2) of this AD to state: Where Boeing
Service Bulletin B787-81205-SB320028-00, Issue 001, dated October 31,
2016, specifies accomplishing an action ``in accordance with 787 AMM
32-44-01,'' for this AD ``refer to 787 AMM 32-44-01'' for that action.
Because the corrective action is specified in the AMM and the AMM is no
longer required by ``in accordance with'' text, we have removed the
references to ``applicable corrective actions'' from the first two
sentences of paragraph (g)(2) of this AD and added a new corrective
action statement in paragraph (g)(2) of this AD.
Request To Delete or Modify a Contradictory Sentence
ANA requested that we delete or modify a contradictory sentence in
the proposed AD. ANA stated that according to paragraph (g) of the
proposed AD, if the PBM is Rockwell Collins P/N 4260-0037-3 or -4, ANA
has to install PBM P/N 4260-0037-5 within 60 months after the effective
date of this AD, and in the last sentence of the paragraph, it says to
do all applicable corrective actions ``before further flight.'' ANA
stated that the two sentences are contradictory and that it is too hard
to do all applicable corrective actions before further flight. ANA also
commented that installing PBM P/N 4260-0037-5 ``within 60 months'' is
acceptable.
We agree to clarify the compliance time language. Paragraph (g)(2)
of this AD requires installing the PBM, doing the installation test,
and doing applicable corrective actions. Operators have the entire
compliance time of ``within 60 months after the effective date of this
AD'' to accomplish the PBM installation and the installation test.
However, if the test fails, all applicable corrective actions must be
done before further flight after the test. As stated previously, we
have revised the corrective action statement in paragraph (g)(2) of
this AD to clarify the requirements.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this final rule with the changes described previously and minor
editorial changes. We have determined that these minor changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Service Bulletin B787-81205-SB320028-00, Issue
001, dated October 31, 2016. The service information describes
procedures for replacing the PBM and doing a PBM installation test.
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 68 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection........................... 1 work-hour x $85 per hour = $0 Up to $85....................... Up to $5,780.
$85.
[[Page 16190]]
PBM replacement and test............. 4 work-hours x $85 per hour = $9,655 $9,995.......................... $679,660.
$340.
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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 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
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 DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation in Alaska, and
(4) Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
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 adding the following new airworthiness
directive (AD):
2018-07-19 The Boeing Company: Amendment 39-19250; Docket No. FAA-
2017-0553; Product Identifier 2016-NM-208-AD.
(a) Effective Date
This AD is effective May 21, 2018.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company Model 787-8 and 787-9
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 32; Landing
gear.
(e) Unsafe Condition
This AD was prompted by a report that the parking brake and
alternate pitch trim module (PBM) may unintentionally disengage. We
are issuing this AD to prevent an unintended parking brake release,
which could result in damage to the airplane and be a hazard to
persons or property on the ground.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Replacement
For airplanes on which the original airworthiness certificate or
the original export certificate of airworthiness was issued on or
before the effective date of this AD: Within 60 months after the
effective date of this AD, inspect the PBM to determine the part
number. A review of airplane maintenance or delivery records is
acceptable in lieu of the inspection if the part number of the PBM
can be conclusively determined from that review.
(1) If the PBM is Rockwell Collins part number (P/N) 4260-0037-
5: No further action is required by this paragraph.
(2) If the PBM is Rockwell Collins P/N 4260-0037-3 or -4: Within
60 months after the effective date of this AD, install PBM P/N 4260-
0037-5 and do the PBM installation test, in accordance with the
Accomplishment Instructions of Boeing Service Bulletin B787-81205-
SB320028-00, Issue 001, dated October 31, 2016. Where Boeing Service
Bulletin B787-81205-SB320028-00, Issue 001, dated October 31, 2016,
specifies accomplishing an action ``in accordance with 787 AMM 32-
44-01,'' for this AD ``refer to 787 AMM 32-44-01'' for that action.
If the installation test fails, before further flight, do all
applicable corrective actions and repeat the test until the test is
passed.
(h) Parts Installation Prohibition
As of the effective date of this AD, no person may install, on
any airplane, a PBM having Rockwell Collins P/N 4260-0037-3 or -4.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, Seattle 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 the attention of the person
identified in paragraph (j) of this AD. Information may be emailed
to: <a href="/cdn-cgi/l/email-protection#cbf2e68a8586e698aeaabfbfa7aee68a8884e68a868488e699aebabeaeb8bfb88badaaaae5aca4bd"><span class="__cf_email__" data-cfemail="380115797675156b5d594c4c545d15797b77157975777b156a5d494d5d4b4c4b785e5959165f574e">[email protected]</span></a>.
(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.
(3) An AMOC that provides an acceptable level of safety may be
used for any repair, modification, or alteration 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. To be approved, the
repair method, modification deviation, or alteration deviation must
meet the certification basis of the airplane, and the approval must
specifically refer to this AD.
(4) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of
[[Page 16191]]
paragraphs (i)(4)(i) and (i)(4)(ii) of this AD apply.
(i) The steps labeled as RC, including substeps under an RC step
and any figures identified in an RC step, must be done to comply
with the AD. If a step or substep is labeled ``RC Exempt,'' then the
RC requirement is removed from that step or substep. An AMOC is
required for any deviations to RC steps, including substeps and
identified figures.
(ii) Steps not labeled as RC may be deviated from using accepted
methods in accordance with the operator's maintenance or inspection
program without obtaining approval of an AMOC, provided the RC
steps, including substeps and identified figures, can still be done
as specified, and the airplane can be put back in an airworthy
condition.
(j) Related Information
For more information about this AD, contact Sean Schauer,
Aerospace Engineer, Systems and Equipment Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax:
206-231-3547; email: <a href="/cdn-cgi/l/email-protection#1a497f7b74344979727b6f7f685a7c7b7b347d756c"><span class="__cf_email__" data-cfemail="346751555a1a67575c55415146745255551a535b42">[email protected]</span></a>.
(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) Boeing Service Bulletin B787-81205-SB320028-00, Issue 001,
dated October 31, 2016.
(ii) Reserved.
(3) For Boeing service information identified in this AD,
contact Boeing Commercial Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA
90740-5600; telephone: 562-797-1717; internet: <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
(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: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Des Moines, Washington, on March 30, 2018.
Chris Spangenberg,
Acting Director, System Oversight Division, Aircraft Certification
Service.
[FR Doc. 2018-07629 Filed 4-13-18; 8:45 am]
BILLING CODE 4910-13-P
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Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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