Airworthiness Directives; The Boeing Company Airplanes, 79411-79413 [2020-27005]
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Federal Register / Vol. 85, No. 238 / Thursday, December 10, 2020 / Rules and Regulations
(l) Material Incorporated by Reference
None.
Issued on December 2, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020–26915 Filed 12–9–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
Examining the AD Docket
[Docket No. FAA–2020–0586; Product
Identifier 2020–NM–066–AD; Amendment
39–21306; AD 2020–22–10]
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0586; 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: Julie
Linn, Aerospace Engineer, Cabin Safety
and Environmental Systems Section,
FAA, Seattle ACO Branch, 2200 South
216th St., Des Moines, WA 98198;
phone and fax: 206–231–3584; email:
Julie.Linn@faa.gov.
SUPPLEMENTARY INFORMATION:
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is superseding
Airworthiness Directive (AD) 2018–14–
02, which applied to certain The Boeing
Company Model 777–200, –200LR,
–300, and –300ER series airplanes. AD
2018–14–02 required an inspection for
foam insulation on the dripshield above
the overhead panel support structure
and replacement if necessary. For
certain airplanes, AD 2018–14–02 also
required replacement of foam insulation
on the overhead panel support
structure. This AD continues to require
the actions in AD 2018–14–02, and, for
certain airplanes, this AD requires an
inspection of the foam insulation on the
overhead panel support structure, and
replacement if necessary. This AD was
prompted by reports that additional
areas of Boeing Material Specification
(BMS) 8–39 flexible urethane foam were
found on the overhead panel support
structure in the flight compartment. The
FAA is issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective January 14,
2021.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of January 14, 2021.
ADDRESSES: For service information
identified in this final rule, contact
Boeing Commercial Airplanes,
Attention: Contractual & Data Services
SUMMARY:
jbell on DSKJLSW7X2PROD with RULES
(C&DS), 2600 Westminster Blvd., MC
110–SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet
https://www.myboeingfleet.com. 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 on the internet at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0586.
VerDate Sep<11>2014
16:15 Dec 09, 2020
Jkt 253001
Discussion
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2018–14–02,
Amendment 39–19322 (83 FR 31650,
July 9, 2018) (‘‘AD 2018–14–02’’). AD
2018–14–02 applied to certain The
Boeing Company Model 777–200,
–200LR, –300, and –300ER series
airplanes. The NPRM published in the
Federal Register on July 28, 2020 (85 FR
45357). The NPRM was prompted by
reports that additional areas of BMS 8–
39 flexible urethane foam were found on
the overhead panel support structure in
the flight compartment. The degradation
of the foam over time increases the
potential for an uncontrolled fire below
the passenger compartment floor and
other locations outside the areas
covered by smoke detection and fire
protection systems. The NPRM
PO 00000
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Fmt 4700
Sfmt 4700
79411
proposed to continue to require the
actions in AD 2018–14–02, and, for
certain airplanes, the NPRM also
proposed to require an inspection of the
foam insulation on the overhead panel
support structure, and replacement if
necessary. The FAA is issuing this AD
to address BMS 8–39 flexible urethane
foam found in certain areas of an
airplane, which, if exposed to an
ignition source, could cause loss of
control of the airplane during a fire.
Comments
The FAA gave the public the
opportunity to participate in developing
this AD. The FAA has considered the
comments received. Boeing and United
Airlines indicated their support for the
NPRM.
Conclusion
The FAA reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this AD
as proposed, except for minor editorial
changes. The FAA has determined that
these minor changes:
• Are consistent with the intent that
was proposed in the NPRM for
addressing the unsafe condition; and
• Do not add any additional burden
upon the public than was already
proposed in the NPRM.
Related IBR Material Under 1 CFR Part
51
The FAA reviewed Boeing Special
Attention Service Bulletin 777–25–
0621, Revision 2, dated February 28,
2020. This service information describes
procedures for removal and replacement
of the foam on the overhead panel
support structure; a general visual
inspection for foam insulation on the
dripshield above the overhead panel
support structure; a detailed inspection
for foam insulation on the overhead
panel support structure; and
replacement if necessary. 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
The FAA estimates that this AD
affects 132 airplanes of U.S. registry.
The FAA estimates the following costs
to comply with this AD:
E:\FR\FM\10DER1.SGM
10DER1
79412
Federal Register / Vol. 85, No. 238 / Thursday, December 10, 2020 / Rules and Regulations
ESTIMATED COSTS
Labor cost
Inspection and replacement of foam insulation (retained actions from AD
2018–14–02).
Detailed inspection and replacement
(new proposed action).
Up to 32 work-hours × $85 per hour =
Up to $2,720.
$5,611
Up to $8,331 .........
Up to $1,099,692.
Up to 18 work-hours × $85 per hour =
Up to $1,530.
$5,840
Up to $7,370 .........
Up to $972,840.
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
The FAA has determined that this AD
will not have federalism implications
under Executive Order 13132. This AD
will not have a substantial direct effect
on the States, on the relationship
between the national government and
the States, or on the distribution of
power and responsibilities among the
various levels of government.
For the reasons discussed above, I
certify that this AD:
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
(2) 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.
jbell on DSKJLSW7X2PROD with RULES
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:
VerDate Sep<11>2014
16:15 Dec 09, 2020
Jkt 253001
Parts cost
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
■
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by:
a. Removing Airworthiness Directive
(AD) 2018–14–02, Amendment 39–
19322 (83 FR 31650, July 9, 2018), and
■ b: Adding the following new AD:
■
■
2020–22–10 The Boeing Company:
Amendment 39–21306; Docket No.
FAA–2020–0586; Product Identifier
2020–NM–066–AD.
(a) Effective Date
This AD is effective January 14, 2021.
(b) Affected ADs
This AD replaces AD 2018–14–02,
Amendment 39–19322 (83 FR 31650, July 9,
2018) (‘‘AD 2018–14–02’’).
(c) Applicability
This AD applies to The Boeing Company
Model 777–200, –200LR, –300, and –300ER
series airplanes, certificated in any category,
as identified in Boeing Special Attention
Service Bulletin 777–25–0621, Revision 2,
dated February 28, 2020.
(d) Subject
Air Transport Association (ATA) of
America Code 25, Equipment/furnishings.
(e) Unsafe Condition
This AD was prompted by reports that
additional areas of Boeing Material
Specification (BMS) 8–39 flexible urethane
foam were found on the overhead panel
support structure in the flight compartment.
The degradation of the foam over time
increases the potential for an uncontrolled
fire below the passenger compartment floor
and other locations outside the areas covered
by smoke detection and fire protection
systems. The FAA is issuing this AD to
address BMS 8–39 flexible urethane foam
found in certain areas of an airplane, which,
if exposed to an ignition source, could cause
loss of control of the airplane during a fire.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
Except as specified by paragraph (h) of this
AD: At the applicable times specified in
PO 00000
Frm 00030
Fmt 4700
Sfmt 4700
Cost per product
Cost on U.S.
operators
Action
paragraph 1.E., ‘‘Compliance,’’ of Boeing
Special Attention Service Bulletin 777–25–
0621, Revision 2, dated February 28, 2020, do
all applicable actions identified as ‘‘RC’’
(required for compliance) in, and in
accordance with, the Accomplishment
Instructions of Boeing Special Attention
Service Bulletin 777–25–0621, Revision 2,
dated February 28, 2020.
(h) Exceptions to Service Information
Specifications
(1) Where Boeing Special Attention Service
Bulletin 777–25–0621, Revision 2, dated
February 28, 2020, uses the phrase ‘‘the
Revision 2 date of this service bulletin,’’ this
AD requires using ‘‘the effective date of AD
2018–14–02.’’
(2) For any Group 1 Configuration 3
airplane as identified in Boeing Special
Attention Service Bulletin 777–25–0621,
Revision 2, dated February 28, 2020, no
action is required by this AD, provided that
airplane remains in that configuration.
(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
certification office, send it to the attention of
the person identified in paragraph (j) of this
AD. Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC,
notify your appropriate principal inspector,
or lacking a principal inspector, the manager
of the local flight standards district office/
certificate holding district office.
(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.
(4) AMOCs approved previously for AD
2018–14–02 are approved as AMOCs for the
corresponding provisions of Boeing Special
Attention Service Bulletin 777–25–0621,
Revision 2, dated February 28, 2020, that are
required by paragraph (g) of this AD.
(5) For service information that contains
steps that are labeled as Required for
E:\FR\FM\10DER1.SGM
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Federal Register / Vol. 85, No. 238 / Thursday, December 10, 2020 / Rules and Regulations
Compliance (RC), the provisions of
paragraphs (i)(5)(i) and (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.
DEPARTMENT OF TRANSPORTATION
Examining the AD Docket
Federal Aviation Administration
(j) Related Information
SUMMARY:
You may examine the AD docket on
the internet at https://
www.regulations.gov by searching for
and locating Docket No. FAA–2020–
0573; 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: Eric
Lin, Aerospace Engineer, Airframe
Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198;
phone and fax: 206–231–3523; email:
eric.lin@faa.gov.
SUPPLEMENTARY INFORMATION:
For more information about this AD,
contact Julie Linn, Aerospace Engineer,
Cabin Safety and Environmental Systems
Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198;
phone and fax: 206–231–3584; email:
Julie.Linn@faa.gov.
(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 Special Attention Service
Bulletin 777–25–0621, Revision 2, dated
February 28, 2020.
(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 https://
www.myboeingfleet.com.
(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,
email fedreg.legal@nara.gov, or go to: https://
www.archives.gov/federal-register/cfr/ibrlocations.html.
jbell on DSKJLSW7X2PROD with RULES
79413
Issued on October 19, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020–27005 Filed 12–9–20; 8:45 am]
BILLING CODE 4910–13–P
VerDate Sep<11>2014
16:15 Dec 09, 2020
Jkt 253001
14 CFR Part 39
[Docket No. FAA–2020–0573; Product
Identifier 2020–NM–078–AD; Amendment
39–21289; AD 2020–21–16]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
AGENCY:
ACTION:
Final rule.
The FAA is adopting a new
airworthiness directive (AD) for all The
Boeing Company Model 747–100, 747–
100B, 747–100B SUD, 747–200B, 747–
200C, 747–200F, 747–300, 747–400,
747–400D, 747–400F, 747SR, and 747SP
series airplanes. This AD was prompted
by a determination that the upper wing
skin at engine nacelle points may be
subject to undetected cracking. This AD
requires repetitive ultrasonic
inspections of the upper wing skin at
certain engine strut positions for
cracking; repetitive detailed and
ultrasonic inspections of the strut lower
spar fitting, diagonal brace strut end
clevis, and diagonal brace wing attach
end clevis for cracking; repetitive
detailed inspections of lower link fitting
at certain engine strut positions for
cracking; and applicable on-condition
actions. The FAA is issuing this AD to
address the unsafe condition on these
products.
This AD is effective January 14,
2021.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of January 14, 2021.
DATES:
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
https://www.myboeingfleet.com. 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 on the internet at
https://www.regulations.gov by
searching for and locating Docket No.
FAA–2020–0573.
ADDRESSES:
PO 00000
Frm 00031
Fmt 4700
Sfmt 4700
Discussion
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
747–100, 747–100B, 747–100B SUD,
747–200B, 747–200C, 747–200F, 747–
300, 747–400, 747–400D, 747–400F,
747SR, and 747SP series airplanes. The
NPRM published in the Federal
Register on June 30, 2020 (85 FR 39108).
The NPRM was prompted by a
determination that the upper wing skin
at engine nacelle points may be subject
to undetected cracking. The NPRM
proposed to require repetitive ultrasonic
inspections of the upper wing skin at
certain engine strut positions for
cracking; repetitive detailed and
ultrasonic inspections of the strut lower
spar fitting, diagonal brace strut end
clevis, and diagonal brace wing attach
end clevis for cracking; repetitive
detailed inspections of lower link fitting
at certain engine strut positions for
cracking; and applicable on-condition
actions.
The FAA is issuing this AD to address
undetected cracking in the upper wing
skin, strut lower spar fitting, or clevis
lugs at either end of the diagonal brace
and lower link fitting. This condition, if
not addressed, could adversely affect
the structural integrity of the engine
strut and may lead to the separation of
the strut to wing box assembly.
Comments
The FAA gave the public the
opportunity to participate in developing
this final rule. The FAA has considered
the comments received. Boeing stated
that it concurred with the NPRM.
E:\FR\FM\10DER1.SGM
10DER1
]]>Agencies
[Federal Register Volume 85, Number 238 (Thursday, December 10, 2020)]
[Rules and Regulations]
[Pages 79411-79413]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-27005]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2020-0586; Product Identifier 2020-NM-066-AD; Amendment
39-21306; AD 2020-22-10]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-14-
02, which applied to certain The Boeing Company Model 777-200, -200LR,
-300, and -300ER series airplanes. AD 2018-14-02 required an inspection
for foam insulation on the dripshield above the overhead panel support
structure and replacement if necessary. For certain airplanes, AD 2018-
14-02 also required replacement of foam insulation on the overhead
panel support structure. This AD continues to require the actions in AD
2018-14-02, and, for certain airplanes, this AD requires an inspection
of the foam insulation on the overhead panel support structure, and
replacement if necessary. This AD was prompted by reports that
additional areas of Boeing Material Specification (BMS) 8-39 flexible
urethane foam were found on the overhead panel support structure in the
flight compartment. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective January 14, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 14,
2021.
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 https://www.myboeingfleet.com. 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 on
the internet at https://www.regulations.gov by searching for and
locating Docket No. FAA-2020-0586.
Examining the AD Docket
You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2020-
0586; 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: Julie Linn, Aerospace Engineer, Cabin
Safety and Environmental Systems Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3584;
email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2018-14-02, Amendment 39-19322 (83 FR
31650, July 9, 2018) (``AD 2018-14-02''). AD 2018-14-02 applied to
certain The Boeing Company Model 777-200, -200LR, -300, and -300ER
series airplanes. The NPRM published in the Federal Register on July
28, 2020 (85 FR 45357). The NPRM was prompted by reports that
additional areas of BMS 8-39 flexible urethane foam were found on the
overhead panel support structure in the flight compartment. The
degradation of the foam over time increases the potential for an
uncontrolled fire below the passenger compartment floor and other
locations outside the areas covered by smoke detection and fire
protection systems. The NPRM proposed to continue to require the
actions in AD 2018-14-02, and, for certain airplanes, the NPRM also
proposed to require an inspection of the foam insulation on the
overhead panel support structure, and replacement if necessary. The FAA
is issuing this AD to address BMS 8-39 flexible urethane foam found in
certain areas of an airplane, which, if exposed to an ignition source,
could cause loss of control of the airplane during a fire.
Comments
The FAA gave the public the opportunity to participate in
developing this AD. The FAA has considered the comments received.
Boeing and United Airlines indicated their support for the NPRM.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and determined that air safety and the public interest
require adopting this AD as proposed, except for minor editorial
changes. The FAA has determined that these minor changes:
Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
Do not add any additional burden upon the public than was
already proposed in the NPRM.
Related IBR Material Under 1 CFR Part 51
The FAA reviewed Boeing Special Attention Service Bulletin 777-25-
0621, Revision 2, dated February 28, 2020. This service information
describes procedures for removal and replacement of the foam on the
overhead panel support structure; a general visual inspection for foam
insulation on the dripshield above the overhead panel support
structure; a detailed inspection for foam insulation on the overhead
panel support structure; and replacement if necessary. 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
The FAA estimates that this AD affects 132 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
[[Page 79412]]
Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product Cost on U.S. operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
Inspection and replacement of foam Up to 32 work-hours x $85 per $5,611 Up to $8,331.................... Up to $1,099,692.
insulation (retained actions from AD hour = Up to $2,720.
2018-14-02).
Detailed inspection and replacement Up to 18 work-hours x $85 per $5,840 Up to $7,370.................... Up to $972,840.
(new proposed action). hour = Up to $1,530.
--------------------------------------------------------------------------------------------------------------------------------------------------------
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
The FAA has determined that this AD will not have federalism
implications under Executive Order 13132. This AD will not have a
substantial direct effect on the States, on the relationship between
the national government and the States, or on the distribution of power
and responsibilities among the various levels of government.
For the reasons discussed above, I certify that this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) 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.
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
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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]
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2. The FAA amends Sec. 39.13 by:
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a. Removing Airworthiness Directive (AD) 2018-14-02, Amendment 39-19322
(83 FR 31650, July 9, 2018), and
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b: Adding the following new AD:
2020-22-10 The Boeing Company: Amendment 39-21306; Docket No. FAA-
2020-0586; Product Identifier 2020-NM-066-AD.
(a) Effective Date
This AD is effective January 14, 2021.
(b) Affected ADs
This AD replaces AD 2018-14-02, Amendment 39-19322 (83 FR 31650,
July 9, 2018) (``AD 2018-14-02'').
(c) Applicability
This AD applies to The Boeing Company Model 777-200, -200LR, -
300, and -300ER series airplanes, certificated in any category, as
identified in Boeing Special Attention Service Bulletin 777-25-0621,
Revision 2, dated February 28, 2020.
(d) Subject
Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.
(e) Unsafe Condition
This AD was prompted by reports that additional areas of Boeing
Material Specification (BMS) 8-39 flexible urethane foam were found
on the overhead panel support structure in the flight compartment.
The degradation of the foam over time increases the potential for an
uncontrolled fire below the passenger compartment floor and other
locations outside the areas covered by smoke detection and fire
protection systems. The FAA is issuing this AD to address BMS 8-39
flexible urethane foam found in certain areas of an airplane, which,
if exposed to an ignition source, could cause loss of control of the
airplane during a fire.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified by paragraph (h) of this AD: At the
applicable times specified in paragraph 1.E., ``Compliance,'' of
Boeing Special Attention Service Bulletin 777-25-0621, Revision 2,
dated February 28, 2020, do all applicable actions identified as
``RC'' (required for compliance) in, and in accordance with, the
Accomplishment Instructions of Boeing Special Attention Service
Bulletin 777-25-0621, Revision 2, dated February 28, 2020.
(h) Exceptions to Service Information Specifications
(1) Where Boeing Special Attention Service Bulletin 777-25-0621,
Revision 2, dated February 28, 2020, uses the phrase ``the Revision
2 date of this service bulletin,'' this AD requires using ``the
effective date of AD 2018-14-02.''
(2) For any Group 1 Configuration 3 airplane as identified in
Boeing Special Attention Service Bulletin 777-25-0621, Revision 2,
dated February 28, 2020, no action is required by this AD, provided
that airplane remains in that configuration.
(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 certification office, send it to the attention of the
person identified in paragraph (j) of this AD. Information may be
emailed to: [email protected].
(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 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.
(4) AMOCs approved previously for AD 2018-14-02 are approved as
AMOCs for the corresponding provisions of Boeing Special Attention
Service Bulletin 777-25-0621, Revision 2, dated February 28, 2020,
that are required by paragraph (g) of this AD.
(5) For service information that contains steps that are labeled
as Required for
[[Page 79413]]
Compliance (RC), the provisions of paragraphs (i)(5)(i) and (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 Julie Linn,
Aerospace Engineer, Cabin Safety and Environmental Systems Section,
FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198;
phone and fax: 206-231-3584; email: [email protected].
(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 Special Attention Service Bulletin 777-25-0621,
Revision 2, dated February 28, 2020.
(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 https://www.myboeingfleet.com.
(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, email [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on October 19, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2020-27005 Filed 12-9-20; 8:45 am]
BILLING CODE 4910-13-P
