AD 2016-11-18
final rule
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
Insufficient shot peening of the inner diameters of some batches of landing gear pins could lead to stress corrosion cracking and failure of the landing gear pin, causing landing gear collapse and inability to control the airplane at high speeds on the ground.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect for improperly manufactured landing gear pins and replace if necessary. Refer to Boeing Alert Service Bulletin B787-81205-SB320022-00, Issue 002, dated April 6, 2016, for inspection and replacement procedures.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 787 airplanes, specifically those that received their original airworthiness certificate or original export certificate of airworthiness on or before the effective date of the AD.
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 airplanes. This AD was prompted by the disclosure that the inner diameters of some batches of landing gear pins were not shot peened in accordance with design specifications, and need to be replaced. This AD requires inspection for improperly manufactured landing gear pins, and replacement if necessary. We are issuing this AD to detect and correct insufficient shot peening that could lead to stress corrosion cracking and failure of the landing gear pin, and cause landing gear collapse and inability to control the airplane at high speeds on the ground.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to all The Boeing Company Model 787 airplanes,
certificated in any category.
Document Text
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[Federal Register Volume 81, Number 109 (Tuesday, June 7, 2016)]
[Rules and Regulations]
[Pages 36433-36436]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2016-12847]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2015-2958; Directorate Identifier 2014-NM-248-AD;
Amendment 39-18545; AD 2016-11-18]
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
[[Page 36434]]
Boeing Company Model 787 airplanes. This AD was prompted by the
disclosure that the inner diameters of some batches of landing gear
pins were not shot peened in accordance with design specifications, and
need to be replaced. This AD requires inspection for improperly
manufactured landing gear pins, and replacement if necessary. We are
issuing this AD to detect and correct insufficient shot peening that
could lead to stress corrosion cracking and failure of the landing gear
pin, and cause landing gear collapse and inability to control the
airplane at high speeds on the ground.
DATES: This AD is effective July 12, 2016.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of July 12,
2016.
ADDRESSES: For service information identified in this final rule,
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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>. 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. 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-2015-
2958.
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-2015-
2958; 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 address for the Docket Office (phone: 800-647-
5527) is Document 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: Melanie Violette, Senior Aerospace
Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft
Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6422; fax: 425-917-6590; email:
<a href="/cdn-cgi/l/email-protection#09646c656867606c277f6066656c7d7d6c496f6868276e667f"><span class="__cf_email__" data-cfemail="89e4ece5e8e7e0eca7ffe0e6e5ecfdfdecc9efe8e8a7eee6ff">[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 airplanes. The NPRM published in the Federal Register on July
23, 2015 (80 FR 43642) (``the NPRM''). The NPRM was prompted by a
report indicating that the inner diameters of some batches of landing
gear pins were not shot peened and need to be replaced. The NPRM
proposed to require inspection for improperly manufactured landing gear
pins, and replacement if necessary. We are issuing this AD to detect
and correct insufficient shot peening that could lead to stress
corrosion cracking and failure of the landing gear pin, and cause
landing gear collapse and inability to control the airplane at high
speeds on the ground.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the NPRM and
the FAA's response to each comment.
Request To Use Revised Service Information
One commenter, Junji Miura, found several errors in Boeing Alert
Service Bulletin B787-81205-SB320022-00, Issue 001, dated November 14,
2014, and requested that we include a reference to the upcoming
corrections. The commenter stated that Boeing will correct these errors
in the next revision, and that referencing this revision in this AD
will avoid the need for a global alternative method of compliance
(AMOC).
We agree with the request. Boeing has issued Alert Service Bulletin
B787-81205-SB320022-00, Issue 002, dated April 6, 2016. We have
reviewed this service information, which was issued to correct
typographical errors and part numbers, and to update statements, but
adds no new actions. The changes in Boeing Alert Service Bulletin B787-
81205-SB320022-00, Issue 002, dated April 6, 2016, address the
commenter's concerns. We have revised the service information
references throughout this final rule to refer to Boeing Alert Service
Bulletin B787-81205-SB320022-00, Issue 002, dated April 6, 2016, and we
have added a new paragraph (h) to this AD to provide credit for the
original service information. We have redesignated subsequent
paragraphs accordingly.
Request for Correction to Paragraphs (g) and (h) of This AD
Boeing requested a correction to paragraphs (g) and (h) of the
proposed AD to replace the word ``or'' with the word ``and'' in the
phrase ``part number or serial number.''
We agree to correct the applicable paragraphs of this AD because
the intent was to require replacement of the pin only if both the part
number and serial number are identified in Boeing Alert Service
Bulletin B787-81205-SB320022-00, Issue 002, dated April 6, 2016. In
paragraphs (g) and (i) of this AD, we revised the phrase ``part number
or serial number'' to ``part number and serial number.''
Request for Clarification of Airplanes Affected by Inspection
Requirements
One commenter, Raja Rehman, requested that we clarify the required
actions for airplanes that are covered by this AD, but not listed in
the ``Effectivity'' section of Boeing Alert Service Bulletin B787-
81205-SB320022-00, Issue 001, dated November 14, 2014. The commenter
asked if the inspection requirements of the proposed AD would apply to
all delivered and to-be-delivered Model 787 airplanes, and if Boeing
intends to issue a revision to the service bulletin that will cover the
additional airplanes. The commenter also asked if an airplane that did
not have the affected pins installed at production/delivery, and had
never replaced the pins during service would comply with the AD.
We agree that clarification is necessary. The landing gear pin is a
removable structural component (rotable part). Through maintenance
action, the affected (discrepant) pins could be installed on airplanes
that were initially delivered with acceptable pins. Therefore, the
applicability of this AD is all Model 787 airplanes--both those that
are currently delivered and future deliveries--because the affected
pins could be installed on any Model 787 airplane. It is not necessary
for the applicability of the AD to match the effectivity of Boeing
Alert Service Bulletin B787-81205-SB320022-00, Issue 001, dated
November 14, 2014, or Issue 002, dated April 6, 2016. This difference
has been coordinated with Boeing.
We have modified paragraph (g) to require the inspections only for
airplanes that received their original airworthiness certificate or
original export certificate of airworthiness on or before the effective
date of this AD. These are the airplanes that either had the affected
(discrepant) pins installed
[[Page 36435]]
in production, or may have had them installed through maintenance
action. Paragraph (i), which remains applicable to all Model 787
airplanes, prohibits installation of the affected pins in the future.
Conclusion
We reviewed the relevant data, considered the comments 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:
<bullet> [Agr]re 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 AD.
Related Service Information Under 1 CFR Part 51
We reviewed Boeing Alert Service Bulletin B787-81205-SB320022-00,
Issue 002, dated April 6, 2016. The service information describes
procedures to inspect and replace certain landing gear pins. 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 13 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Inspection........................ 3 work-hours x $85 per $0 $255 $3,315
hour = $255.
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We estimate the following costs to do any necessary replacements
that would be required based on the results of the inspection. We have
no way of determining the number of aircraft that might need these
replacements:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Replacement.......................... Up to 19 work[dash]hours x $35,569 Up to $37,184
$85 per hour = $1,615.
----------------------------------------------------------------------------------------------------------------
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
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):
2016-11-18 The Boeing Company: Amendment 39-18545; Docket No. FAA-
2015-2958; Directorate Identifier 2014-NM-248-AD.
(a) Effective Date
This AD is effective July 12, 2016.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company Model 787 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 the disclosure that the inner diameters
of some batches of landing gear pins were not shot peened in
accordance with design specifications, and need to be replaced. We
are issuing this AD to detect and correct insufficient shot peening
that could lead to stress corrosion cracking and failure of the
landing gear pin, and cause landing gear collapse and inability to
control the airplane at high speeds on the ground.
[[Page 36436]]
(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: At the applicable time
specified in paragraph 5, ``Compliance,'' of Boeing Alert Service
Bulletin B787-81205-SB320022-00, Issue 002, dated April 6, 2016, do
a landing gear pin part number and serial number inspection, in
accordance with the Accomplishment Instructions of Boeing Alert
Service Bulletin B787-81205-SB320022-00, Issue 002, dated April 6,
2016. A review of airplane maintenance or delivery records is
acceptable in lieu of this inspection if the part number and serial
number of the installed landing gear pins can be conclusively
determined from that review.
(1) If the part number and serial number do not match the list
of affected pin numbers: No further action is required by this
paragraph at that pin location.
(2) If the part number and serial number match the list of
affected pin numbers: At the applicable time specified in paragraph
5, ``Compliance,'' of Boeing Alert Service Bulletin B787-81205-
SB320022-00, Issue 002, dated April 6, 2016, replace the affected
pin with a pin that does not have an affected part number and serial
number, in accordance with the Accomplishment Instructions of Boeing
Alert Service Bulletin B787-81205-SB320022-00, Issue 002, dated
April 6, 2016.
(h) Credit for Previous Actions
This paragraph provides credit for the actions specified in
paragraph (g) of this AD, if those actions were performed before the
effective date of this AD, using Boeing Alert Service Bulletin B787-
81205-SB320022-00, Issue 001, dated November 14, 2014. This service
information is not incorporated by reference in this AD.
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install on
any airplane a landing gear pin having an affected part number and
serial number identified in Boeing Alert Service Bulletin B787-
81205-SB320022-00, Issue 002, dated April 6, 2016.
(j) 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 (k) of this AD.
Information may be emailed to: <a href="/cdn-cgi/l/email-protection#96afbbd7d8dbbbc5f3f7e2e2faf3bbd7d5d9bbd7dbd9d5bbc4f3e7e3f3e5e2e5d6f0f7f7b8f1f9e0"><span class="__cf_email__" data-cfemail="1c25315d5251314f797d68687079315d5f53315d51535f314e796d69796f686f5c7a7d7d327b736a">[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 paragraphs
(j)(4)(i) and (j)(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. 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.
(k) Related Information
For more information about this AD, contact Melanie Violette,
Senior Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle
ACO, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6422; fax: 425-917-6590; email: <a href="/cdn-cgi/l/email-protection#670a020b06090e0249110e080b021313022701060649000811"><span class="__cf_email__" data-cfemail="cba6aea7aaa5a2aee5bda2a4a7aebfbfae8badaaaae5aca4bd">[email protected]</span></a>.
(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 the AD specifies otherwise.
(i) Boeing Alert Service Bulletin B787-81205-SB320022-00, Issue
002, dated April 6, 2016.
(ii) Reserved.
(3) For 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 <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
(4) 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.
(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 Renton, Washington, on May 24, 2016.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2016-12847 Filed 6-6-16; 8:45 am]
BILLING CODE 4910-13-P
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