Rule2022-27020
Airworthiness Directives; The Boeing Company Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
December 14, 2022
Effective
January 18, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by a report indicating that foreign object debris (FOD) could have been introduced during rework of certain engine fire shutoff switches (EFSSs). This AD requires determining the serial number of the left and right EFSS and replacing affected parts. This AD also limits the installation of affected parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 239 (Wednesday, December 14, 2022)</title>
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[Federal Register Volume 87, Number 239 (Wednesday, December 14, 2022)]
[Rules and Regulations]
[Pages 76413-76416]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-27020]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-0799; Project Identifier AD-2022-00611-T;
Amendment 39-22251; AD 2022-24-11]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD
was prompted by a report indicating that foreign object debris (FOD)
could have been introduced during rework of certain engine fire shutoff
switches (EFSSs). This AD requires determining the serial number of the
left and right EFSS and replacing affected parts. This AD also limits
the installation of affected parts under certain conditions. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective January 18, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 18,
2023.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-0799; 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, any comments received, and other
information. The address for Docket Operations is U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
<bullet> 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; website <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
<bullet> You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety 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 at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-0799.
FOR FURTHER INFORMATION CONTACT: Tak Kobayashi, Aerospace Engineer,
Propulsion Section, FAA Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone: 206-231-3553; email
<a href="/cdn-cgi/l/email-protection#5f0b3e343e37362c3e7114303d3e263e2c37361f393e3e71383029"><span class="__cf_email__" data-cfemail="3a6e5b515b5253495b147155585b435b4952537a5c5b5b145d554c">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA 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, 787-9, and 787-10 airplanes. The NPRM published in the
Federal Register on July 8, 2022 (87 FR 40747). The NPRM was prompted
by a report indicating that FOD could have been introduced during
rework of certain EFSSs. In the NPRM, the FAA proposed to require
determining the serial number of the left and right EFSSs and replacing
affected parts. The FAA also proposed to limit the installation of
affected parts under certain conditions. The FAA is issuing this AD to
address FOD in an EFSS, which, if not addressed, could result in a
latent failure and loss of intended functions, including the inability
to pull the engine fire handle and uncommanded activation of the engine
fuel shutoff function. The inability to pull the engine fire handle
when an engine fire is detected could lead to an uncontrolled engine
fire and subsequent wing failure, and uncommanded activation of the
fuel shutoff function for an engine, combined with in-flight shutdown
of the remaining engine, could lead to total loss of engine thrust.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from The Airline Pilots Association,
International (ALPA) and United Airlines who both supported the NPRM
without change.
The FAA received additional comments from Qatar Airways and Boeing.
The following presents the comments received on the NPRM and the FAA's
response.
[[Page 76414]]
Request for Guidance if an EFSS Has Two Labels
Qatar Airways requested the FAA's guidance regarding how to handle
an EFSS having two identification labels. The commenter explained that
it has done ``spot checks'' of EFSS spares and discovered parts with
both ``pre-modification'' and ``post-modification'' nameplates/labels.
The commenter stated that having two identification labels on the EFSS
could create confusion and lead to erroneous updating of airplane
records, leading to a possible non-compliance with the final AD. The
commenter indicated that the EFSS manufacturer should be able to
provide the list of EFSS parts that have both ``pre-modification'' and
``post-modification'' labels.
The FAA acknowledges that some EFSSs could have both ``pre-
modification'' and ``post-modification'' labels, which could be
confusing. However, having both labels on a part would not affect an
operator's ability to comply with the requirements of this AD. This AD
requires determining the serial number of the left EFSS having P/N
417000-104 and the right EFSS having P/N 417000-105, and replacing any
EFSS that has an affected serial number with an EFSS that does not have
an affected serial number, or with an EFSS that has an affected serial
number but is marked with ``Inspection Record SB D533-1X-003.'' The
``post-modification'' label on an EFSS specifies the part number,
either P/N 417000-104 or PN 417000-105. The serial number remains the
same regardless of modification.
The modification referred to on the EFSS labels addresses the
requirements of AD 2021-02-06, Amendment 39-21389 (86 FR 10790,
February 23, 2021), which required replacement of EFSSs having P/Ns
417000-101 and 417000-102 with EFSSs having P/Ns 417000-104 and 417000-
105, respectively. This modification was made to EFSSs having P/Ns
417000-101 and 417000-102, followed by re-identification of those part
numbers as P/Ns 417000-104 and 417000-105. It addresses a design issue
that caused a latent failure of the EFSS and is not the subject of this
AD. When this modification was accomplished at a sub-tier supplier,
however, FOD could have been introduced inside the EFSS, and this FOD
issue is the subject of this AD. The FAA has not changed this AD in
response to this comment.
Request To Clarify Affected Airplanes
Boeing requested a revision to the FAA's Determination section in
the NPRM, which stated that the unsafe condition is ``likely to exist
or develop on other products of the same type design.'' Boeing
recommends that the NPRM instead clarify that the unsafe condition is
``contained to only 787-8, 787-9, and 787-10 airplanes having certain
line numbers identified to be impacted by the unsafe condition.''
Boeing asserted that the nonconformance applies only to a specific
group of EFSS serial numbers that were affected at the rework site, and
is not endemic to the type design.
The FAA acknowledges that FOD inside the EFSS is not endemic to the
type design since it was introduced during rework at a sub-tier
supplier. However, because the Determination section in the preamble of
the NPRM is not repeated in this AD, the FAA cannot provide the
clarification requested by the commenter. Furthermore, the affected
EFSS serial numbers can be installed on any Model 787 airplane,
therefore the unsafe condition is not limited to certain Model 787-8,
787-9, and 787-10 airplane line numbers. The FAA has not changed this
AD in response to this comment.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and determined that air safety requires adopting this AD as
proposed. Except for minor editorial changes, this AD is adopted as
proposed in the NPRM. None of the changes will increase the economic
burden on any operator.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Alert Requirements Bulletin B787-81205-
SB260010-00 RB, Issue 001, dated May 2, 2022. This service information
specifies procedures for determining the serial number of the left EFSS
having P/N 417000-104 and the right EFSS having P/N 417000-105, and
replacing any EFSS having an affected serial number with an EFSS that
does not have an affected serial number, or with an EFSS that has an
affected serial number but is marked with ``Inspection Record SB D533-
1X-003.'' 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 ADDRESSES.
Costs of Compliance
The FAA estimates that this AD affects 132 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs
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Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Determination of EFSS serial number... 1 work-hour x $85 per $0 $85 $11,220
hour = $85.
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The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
inspection. The agency has no way of determining the number of aircraft
that might need these replacements:
On-Condition Costs
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Action Labor cost Parts cost Cost per product
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Replacement of EFSS..................... 2 work-hours x $85 per $9,685 $9,855
hour = $170. (for one EFSS).
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[[Page 76415]]
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.
The FAA is 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) Will not affect intrastate aviation in Alaska, and
(3) 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.
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:
2022-24-11 The Boeing Company: Amendment 39-22251; Docket No. FAA-
2022-0799; Project Identifier AD-2022-00611-T.
(a) Effective Date
This airworthiness directive (AD) is effective January 18, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all The Boeing Company Model 787-8, 787-9,
and 787-10 airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 26, Fire
protection.
(e) Unsafe Condition
This AD was prompted by a report indicating that foreign object
debris (FOD) could have been introduced during rework of certain
engine fire shutoff switches (EFSSs). The FAA is issuing this AD to
address FOD in an EFSS, which if not addressed, could result in a
latent failure and loss of intended functions, including the
inability to pull the engine fire handle and uncommanded activation
of the engine fuel shutoff function. The inability to pull the
engine fire handle when an engine fire is detected could lead to an
uncontrolled engine fire and subsequent wing failure, and
uncommanded activation of the fuel shutoff function for an engine,
combined with in-flight shutdown of the remaining engine, could lead
to total loss of engine thrust.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
For airplanes with an original airworthiness certificate or
original export certificate of airworthiness issued on or before the
effective date of this AD: Except as specified by paragraph (h) of
this AD, at the applicable time specified in the ``Compliance''
paragraph of Boeing Alert Requirements Bulletin B787-81205-SB260010-
00 RB, Issue 001, dated May 2, 2022, do all applicable actions
identified in, and in accordance with, the Accomplishment
Instructions of Boeing Alert Requirements Bulletin B787-81205-
SB260010-00 RB, Issue 001, dated May 2, 2022.
Note 1 to paragraph (g):
Guidance for accomplishing the actions required by this AD can
be found in Boeing Alert Service Bulletin B787-81205-SB260010-00,
Issue 001, dated May 2, 2022, which is referred to in Boeing Alert
Requirements Bulletin B787-81205-SB260010-00 RB, Issue 001, dated
May 2, 2022.
(h) Exceptions to Service Information Specifications
Where the Compliance Time column of the table in the
``Compliance'' paragraph of Boeing Alert Requirements Bulletin B787-
81205-SB260010-00 RB, Issue 001, dated May 2, 2022, uses the phrase
``the Issue 001 date of Requirements Bulletin B787-81205-SB260010-00
RB,'' this AD requires using ``the effective date of this AD.''
(i) Parts Installation Limitation
For airplanes with an original airworthiness certificate or
original export certificate of airworthiness issued after the
effective date of this AD: As of the effective date of this AD, no
person may install a left EFSS P/N 417000-104 or a right EFSS P/N
417000-105, having a serial number specified in Boeing Alert
Requirements Bulletin B787-81205-SB260010-00 RB, Issue 001, dated
May 2, 2022, unless that EFSS is marked with ``Inspection Record SB
D533-1X-003.''
(j) 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 responsible Flight Standards 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 (k) of this AD. Information may be emailed
to: <a href="/cdn-cgi/l/email-protection#b48d99f5faf999e7d1d5c0c0d8d199f5f7fb99f5f9fbf799e6d1c5c1d1c7c0c7f4d2d5d59ad3dbc2"><span class="__cf_email__" data-cfemail="d1e8fc909f9cfc82b4b0a5a5bdb4fc90929efc909c9e92fc83b4a0a4b4a2a5a291b7b0b0ffb6bea7">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the responsible Flight Standards 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 Company Organization Designation
Authorization (ODA) that has been authorized by the Manager, Seattle
ACO Branch, FAA, 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.
(k) Related Information
For more information about this AD, contact Tak Kobayashi,
Aerospace Engineer, Propulsion Section, FAA Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198; phone: 206-231-3553; email
<a href="/cdn-cgi/l/email-protection#1044717b71787963713e5b7f72716971637879507671713e777f66"><span class="__cf_email__" data-cfemail="d88cb9b3b9b0b1abb9f693b7bab9a1b9abb0b198beb9b9f6bfb7ae">[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 Requirements Bulletin B787-81205-SB260010-00
RB, Issue 001, dated May 2, 2022.
(ii) [Reserved]
(3) For 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; website <a href="http://myboeingfleet.com">myboeingfleet.com</a>.
[[Page 76416]]
(4) You may view this service information at the FAA,
Airworthiness Products Section, Operational Safety 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, <a href="/cdn-cgi/l/email-protection#e18793cf888f9291848295888e8fa18f809380cf868e97"><span class="__cf_email__" data-cfemail="2a4c58044344595a4f495e4345446a444b584b044d455c">[email protected]</span></a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on November 16, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-27020 Filed 12-13-22; 8:45 am]
BILLING CODE 4910-13-P
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