Rule2022-04662
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
March 7, 2022
Effective
April 11, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by significant changes, including new or more restrictive requirements, made to the airworthiness limitations (AWLs) related to fuel tank ignition prevention and the nitrogen generation system. This AD requires revising the existing maintenance or inspection program, as applicable, to incorporate new or more restrictive airworthiness limitations. 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 44 (Monday, March 7, 2022)</title>
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[Federal Register Volume 87, Number 44 (Monday, March 7, 2022)]
[Rules and Regulations]
[Pages 12561-12565]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-04662]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0664; Project Identifier AD-2021-00158-T;
Amendment 39-21938; AD 2022-03-21]
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
certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes.
This AD was prompted by significant changes, including new or more
restrictive requirements, made to the airworthiness limitations (AWLs)
related to fuel tank ignition prevention and the nitrogen generation
system. This AD requires revising the existing maintenance or
inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective April 11, 2022.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 11,
2022.
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 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="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No.
FAA-2021-0664.
Examining the AD Docket
You may examine the AD docket at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by
searching for and locating Docket No. FAA-2021-0664; 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.
FOR FURTHER INFORMATION CONTACT: Tak Kobayashi, Aerospace Engineer,
Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA; phone: 206-231-3553; email: <a href="/cdn-cgi/l/email-protection#0450656f656c6d77652a4f6b66657d65776c6d446265652a636b72"><span class="__cf_email__" data-cfemail="7d291c161c15140e1c5336121f1c041c0e15143d1b1c1c531a120b">[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 certain The Boeing
Company Model 787-8, 787-9, and 787-10 airplanes. The NPRM published in
the Federal Register on October 6, 2021 (86 FR 55538). The NPRM was
prompted by significant changes, including new or more restrictive
requirements, made to the AWLs related to fuel tank ignition prevention
and the nitrogen generation system. In the NPRM, the FAA proposed to
require revising the existing maintenance or inspection program, as
applicable, to incorporate new or more restrictive airworthiness
limitations. The FAA is issuing this AD to address ignition sources
inside the fuel tanks and increased flammability exposure of the fuel
tanks caused by latent failures, alterations, repairs, or maintenance
actions, which could result in a fuel
[[Page 12562]]
tank explosion and consequent loss of an airplane.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from the Air Line Pilots Association,
International (ALPA) and United Airlines who supported the NPRM without
change.
The FAA received additional comments from two commenters, including
Boeing and American Airlines (AA). The following presents the comments
received on the NPRM and the FAA's response to each comment.
Request To Clarify Applicability
Boeing asked for clarification that the applicability specified in
the proposed AD is the same as the effectivity specified in the
referenced service information. Boeing stated that the effectivity in
the service information mandated by the proposed AD does not apply to
Model 787-8 airplanes having line numbers 1 through 5.
The FAA agrees that this AD does not apply to Model 787-8 airplanes
having line numbers 1 through 5. The FAA has changed paragraph (c) of
this AD accordingly.
Request To Clarify Applicability for AWL No. 57-AWL-13
Boeing and AA asked for clarification that the initial compliance
time specified in paragraph (g)(11)(ii)(B) of the proposed AD is
applicable only to Model 787 airplanes having line numbers 10, 13, and
15 through 19 inclusive. Boeing stated that AWL No. 57-AWL-13
explicitly identifies those specific line numbers instead of referring
to Boeing Service Bulletin B787-81205-SB570030-00. AA stated that for
airplanes not included in the effectivity of the referenced service
bulletin, operators could misinterpret the actions required by
paragraph (g)(11)(ii)(B) for those airplanes, regardless of the
applicability specified in AWL No. 57-AWL-13.
The FAA agrees that the initial compliance time specified in
paragraph (g)(11)(ii)(B) of this AD is applicable only to Model 787
airplanes having line numbers 10, 13, and 15 through 19 inclusive. The
FAA has revised paragraph (g)(11)(ii)(B) accordingly.
Request To Clarify Applicability in Airworthiness Limitation
Instruction (ALI)
Boeing asked for clarification that the initial compliance time for
performing an inspection in accordance with each ALI task specified in
paragraphs (g)(1) through (14) of the proposed AD is applicable only to
the airplanes specified in the applicability of each ALI task. Boeing
also asked for clarification that the proposed AD does not supersede
the applicability of the ALI tasks. Boeing stated that each ALI task
has a unique applicability, and some of these tasks only apply to a
subset of the airplanes affected by the proposed AD.
The FAA agrees to provide clarification. This AD requires
incorporation of the service information into the maintenance or
inspection program. After this action is done, compliance with each ALI
or critical design configuration control limitation (CDCCL) task
incorporated into the maintenance or inspection program is required by
the operating rules in 14 CFR 91.403(c) and 43.16. This AD does not
change or supersede any ALI or CDCCL task or its applicability.
Compliance is based on the applicability specified in each ALI or CDCCL
task. Therefore, the FAA has not changed this AD in this regard.
Request To Clarify ``Recent Inspection''
Boeing asked for clarification regarding a recent inspection
referenced in the sub-paragraphs to paragraphs (g)(1) through (14) of
the proposed AD. Boeing asked that the FAA clarify that a recent
inspection performed on an airplane can be the inspection done in
accordance with an ALI task of the existing maintenance or inspection
program applicable to that airplane. Boeing stated that without
clarification, its interpretation is that the initial inspections are
required to be performed in accordance with the ALI tasks provided in
the service information mandated by paragraph (g) of the AD.
The FAA agrees to provide clarification. The initial compliance
time specified in the sub-paragraphs to paragraph (g)(1) through (14)
of this AD is the compliance time to perform the first inspection in
accordance with each ALI task, after incorporation of the service
information into the maintenance or inspection program as required by
paragraph (g) of this AD. The ``most recent'' inspection referenced in
those paragraphs is the inspection performed in accordance with an ALI
task of the operator's existing maintenance or inspection program prior
to incorporation of the service information mandated by paragraph (g)
of this AD. Certain ALI tasks from the same or earlier revisions of the
service information mandated by paragraph (g) of this AD should already
exist in the maintenance or inspection program. The requirements of
paragraphs (g)(1) through (14) of this AD are intended to address the
transition to the ALI tasks after accomplishment of the actions
required by paragraph (g) of this AD, without disrupting the existing
inspection intervals. Therefore, the FAA has not changed this AD in
this regard.
Request To Extend Compliance Time
Boeing asked that the compliance time to revise the maintenance/
inspection program required by paragraph (g) of the proposed AD be
changed from 180 to 240 days. Boeing stated that the majority of the
inspections require entry into a wet fuel cell to access and possibly
repair structural sealant applications, at unique facilities and with
significant aircraft downtime. Boeing added that an extension of the
compliance time to 240 days would allow additional flexibility to
operators. Boeing also asked whether an initial inspection done within
180 days after the effective date of the AD must be performed in
accordance with the service information mandated by this AD or if it is
allowed to be performed under the existing maintenance or inspection
program applicable to that airplane. Boeing stated that performing the
initial inspection within 180 days after the effective date of the AD
seems to conflict with the requirement to revise the maintenance or
inspection program within 180 days after the effective date of the AD.
The FAA does not agree to extend the compliance time to revise the
maintenance/inspection program required by paragraph (g) of this AD
from 180 to 240 days because the FAA has determined that this
compliance time is adequate for operators to incorporate maintenance or
inspection program changes for their affected fleet. The 180-day
compliance time required by paragraph (g) is unrelated to the initial
compliance time for performing the inspections in accordance with each
ALI task specified in the service information mandated by this AD.
Paragraph (g) requires incorporation of the service information into
the maintenance or inspection program within 180 days after the
effective date of this AD. Once the maintenance/inspection program has
been revised, compliance with each ALI or CDCCL task of the maintenance
or inspection program is required by the operating rules in 14 CFR
91.403(c) and 43.16. For clarification, the initial compliance time to
perform an inspection after incorporation of the service information
into the maintenance or inspection program is specified in paragraphs
(g)(1) through (14) of this AD. Therefore, the
[[Page 12563]]
FAA has not changed this AD in this regard.
Request To Add Revision Level to a Certain Service Bulletin Reference
AA asked that the FAA specify the revision level of Boeing Service
Bulletin B787-81205-SB570030-00, referenced in paragraph (g)(11)(ii)(A)
of the proposed AD. AA stated that specifying the revision level of the
service bulletin will reduce any ambiguity for the requirements
associated with that revision level.
The FAA does not agree to include the revision level of Boeing
Service Bulletin B787-81205-SB570030-00. Including the revision level
of the referenced service bulletin could potentially conflict with
another AD that mandates that service bulletin. Boeing Service Bulletin
B787-81205-SB570030-00, Issue 001, dated March 17, 2017, is required by
AD 2018-11-13, Amendment 39-19301 (83 FR 25894, June 5, 2018) (AD 2018-
11-13). If a later revision of that service bulletin is issued in the
future as an (alternative method of compliance) AMOC to AD 2018-11-13,
the actions in the later revision can be done equivalent to Issue 001.
Specifying ``Issue 001 or later'' in paragraph (g)(11)(ii)(A) of this
AD would make it consistent with the requirements in AD 2018-11-13;
however, if AD 2018-11-13 must be superseded to mandate a later
revision of the service bulletin, this AD would also have to be
superseded if the revision level of the service bulletin is specified.
Therefore, the FAA has determined that the revision level of the
referenced service bulletin will not be included in this AD, and has
not changed this AD in this regard.
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Except for minor editorial changes, and any other changes
described previously, 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 787 Special Compliance Items/Airworthiness
Limitations, D011Z009-03-04, dated August 2018. This service
information specifies AWLs that include ALIs and CDCCLs related to fuel
tank ignition prevention and the nitrogen generation system. 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 121 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the agency recognizes that this number may vary from operator
to operator. Since operators incorporate maintenance or inspection
program changes for their affected fleet(s), the FAA has determined
that a per-operator estimate is more accurate than a per-airplane
estimate. Therefore, the FAA estimates the average 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.
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:
2022-03-21 The Boeing Company: Amendment 39-21938; Docket No. FAA-
2021-0664; Project Identifier AD-2021-00158-T.
(a) Effective Date
This airworthiness directive (AD) is effective April 11, 2022.
(b) Affected ADs
This AD affects AD 2018-11-13, Amendment 39-19301 (83 FR 25894,
June 5, 2018) (AD 2018-11-13).
(c) Applicability
This AD applies to The Boeing Company Model 787-8, 787-9, and
787-10 airplanes, certificated in any category, having line numbers
(L/Ns) 6 through 871 inclusive, excluding L/N 688; and L/Ns 873,
875, 877, 878, 879, 881, and 883.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by significant changes, including new and
more restrictive requirements, made to the airworthiness limitations
(AWLs) related to fuel tank ignition prevention and the nitrogen
generation system. The FAA is issuing this AD to address ignition
sources inside the fuel tanks and increased flammability exposure of
the fuel tanks caused by latent failures, alterations, repairs, or
maintenance actions, which could result in a fuel tank explosion and
consequent loss of an airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Maintenance or Inspection Program Revision
Within 180 days after the effective date of this AD, revise the
existing maintenance or
[[Page 12564]]
inspection program, as applicable, to incorporate the information
specified in Sections C through F of Boeing 787 Special Compliance
Items/Airworthiness Limitations, D011Z009-03-04, dated August 2018.
The initial compliance time for doing the airworthiness limitation
instruction (ALI) tasks specified in Sections C through F of Boeing
787 Special Compliance Items/Airworthiness Limitations, D011Z009-03-
04, dated August 2018, as applicable for each airplane, is at the
times specified in paragraphs (g)(1) through (14) of this AD.
(1) For AWL No. 28-AWL-89, ``Fuel Quantity Data Concentrator
(FQDC) Bracket Inspections,'' at the applicable time in paragraph
(g)(1)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 28-AWL-89: Within 5 years or 10,000 flight
cycles, whichever occur first after the most recent inspection was
performed as specified in AWL No. 28-AWL-89.
(ii) For airplanes on which no initial inspection was performed:
Within 5 years or 10,000 flight cycles, whichever occurs first after
the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(2) For AWL No. 57-AWL-01, ``Edge and Fillet Seals at Stringer
and Spar Locations (Zone 2),'' at the applicable time in paragraph
(g)(2)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-01: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-01.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(3) For AWL No. 57-AWL-02, ``Fasteners on Bare Carbon Fiber
Reinforced Plastic (CFRP) Stripes,'' at the applicable time in
paragraph (g)(3)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-02: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-02.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(4) For AWL No. 57-AWL-03, ``Head-in-tank Thin-Sleeved
Interference-Fit Fasteners with Heads in the Fuel Tank'' at the
applicable time in paragraph (g)(4)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-03: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-03.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(5) For AWL No. 57-AWL-05, ``Titanium Collars--BACC30CT
Fasteners (Clearance Fit).'' at the applicable time in paragraph
(g)(5)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-05: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-05.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(6) For AWL No. 57-AWL-06, ``Titanium Collars--BACC30CY Collars
(Interference-Fit with Swaged Collars)'' at the applicable time in
paragraph (g)(6)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-06: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-06.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(7) For AWL No. 57-AWL-07, ``Tension-rated Bolt Locations at
Side of Body (SOB) and Nacelle Fittings'' at the applicable time in
paragraph (g)(7)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-07: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-07.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(8) For AWL No. 57-AWL-08, ``Dielectric Top on Wing Surface,''
at the applicable time in paragraph (g)(8)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-08: Within 6 years or 12,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-08.
(ii) For airplanes on which no initial inspection was performed:
Within 6 years or 12,000 flight cycles, whichever occurs first after
the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(9) For AWL No. 57-AWL-09, ``Inspection Requirements for Class
1A Seal Installations created as a result of Boeing Material Review
Board,'' at the applicable time in paragraph (g)(9)(i) or (ii) of
this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-09: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-09.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(10) For AWL No. 57-AWL-10, ``Inspection Requirements for In-
Tank Fasteners near Side of Body (SOB) Rib and between Ribs 7 and
18,'' at the applicable time in paragraph (g)(10)(i) or (ii) of this
AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-10: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-10.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(11) For AWL No. 57-AWL-13, ``Inspection Requirements for In-
Tank Fasteners and Edge Seal near Disbond Arrestment (DBA) Fastener
Installations in Lightning Zone 2,'' at the applicable time in
paragraph (g)(11)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-13: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-13.
(ii) For airplanes on which no initial inspection was performed:
At the applicable time in paragraph (g)(11)(ii)(A) or (B) of this
AD.
(A) For airplanes on which Boeing Service Bulletin B787-81205-
SB570030-00 is applicable: Within 12 years or 24,000 flight cycles,
whichever occurs first after the incorporation of Boeing Service
Bulletin B787-81205-SB570030-00.
(B) For airplanes having line numbers 10, 13, and 15 through 19
inclusive: Within 12 years or 24,000 flight cycles, whichever occurs
first after the date of issuance of the original standard
airworthiness certificate or the date of issuance of the original
export certificate of airworthiness.
(12) For AWL No. 57-AWL-14, ``Supplemental Inspection
Requirements for Pre-cured Sealant Caps, Fillet Seals, and Edge
Seals associated Stringer Splice Fitting Installation located at
Right Wing Upper Panel Stringer No. 3, just Outboard of the Side of
Body Rib,'' at the applicable time in paragraph (g)(12)(i) or (ii)
of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-14: Within 12 years or 24,000 flight
cycles whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-14.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or
[[Page 12565]]
24,000 flight cycles, whichever occurs first after the date of
issuance of the original standard airworthiness certificate or the
date of issuance of the original export certificate of
airworthiness.
(13) For AWL No. 57-AWL-15, ``Inspection Requirements for Pre-
cured Sealant Caps, Injection Seals, Fillet Seals, and Edge Seals
associated with the Wing Lower Panel Stringer Attachments to the
Lower Side of Body (SOB) Chord,'' at the applicable time in
paragraph (g)(13)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-15: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-15.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(14) For AWL No. 57-AWL-16, ``Supplemental Inspection
Requirements for Edge Seals located at Left Wing Upper Panel
Stringer No. 19, Between Ribs 8 and 9,'' at the applicable time in
paragraph (g)(14)(i) or (ii) of this AD.
(i) For airplanes on which an inspection was performed as
specified in AWL No. 57-AWL-16: Within 12 years or 24,000 flight
cycles, whichever occurs first after the most recent inspection was
performed as specified in AWL No. 57-AWL-16.
(ii) For airplanes on which no initial inspection was performed:
Within 12 years or 24,000 flight cycles, whichever occurs first
after the date of issuance of the original standard airworthiness
certificate or the date of issuance of the original export
certificate of airworthiness.
(h) No Alternative Actions, Intervals, or Critical Design Configuration
Control Limitations
After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections), intervals, or critical design
configuration control limitation (CDCCLs) may be used unless the
actions, intervals, and CDCCLs are approved as an alternative method
of compliance (AMOC) in accordance with the procedures specified in
paragraph (j) of this AD.
(i) Terminating Actions
Accomplishment of the revision required by paragraph (g) of this
AD terminates the requirements specified in paragraph (h) of AD
2018-11-13, for Model 787-8 airplanes only.
(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 Related Information. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#d3eafe929d9efe80b6b2a7a7bfb6fe92909cfe929e9c90fe81b6a2a6b6a0a7a093b5b2b2fdb4bca5"><span class="__cf_email__" data-cfemail="caf3e78b8487e799afabbebea6afe78b8985e78b878589e798afbbbfafb9beb98aacababe4ada5bc">[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; phone: 206-231-3553; email:
<a href="/cdn-cgi/l/email-protection#f3a79298929b9a8092ddb89c91928a92809b9ab3959292dd949c85"><span class="__cf_email__" data-cfemail="1642777d777e7f6577385d7974776f77657e7f5670777738717960">[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 787 Special Compliance Items/Airworthiness
Limitations, D011Z009-03-04, dated August 2018.
(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; internet <a href="https://www.myboeingfleet.com">https://www.myboeingfleet.com</a>.
(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#086e7a2661667b786d6b7c6167664866697a69266f677e"><span class="__cf_email__" data-cfemail="2046520e494e5350454354494f4e604e4152410e474f56">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on January 28, 2022.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2022-04662 Filed 3-4-22; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on March 7, 2022.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.