Airworthiness Directives; The Boeing Company Airplanes, 54885-54888 [2020-19387]
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54885
Rules and Regulations
Federal Register
Vol. 85, No. 172
Thursday, September 3, 2020
This section of the FEDERAL REGISTER
contains regulatory documents having general
applicability and legal effect, most of which
are keyed to and codified in the Code of
Federal Regulations, which is published under
50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by
the Superintendent of Documents.
NUCLEAR REGULATORY
COMMISSION
10 CFR Part 72
[NRC–2019–0202]
RIN 3150–AK39
List of Approved Spent Fuel Storage
Casks: TN Americas LLC,
Standardized NUHOMS® Horizontal
Modular Storage System, Certificate of
Compliance No. 1004, Renewed
Amendment No. 16
Nuclear Regulatory
Commission.
ACTION: Direct final rule; confirmation of
effective date.
AGENCY:
The U.S. Nuclear Regulatory
Commission (NRC) is confirming the
effective date of September 14, 2020, for
the direct final rule that was published
in the Federal Register on June 30,
2020. The direct final rule amends the
spent fuel storage regulations by
revising the TN Americas LLC,
Standardized NUHOMS® Horizontal
Modular Storage System listing within
the ‘‘List of approved spent fuel storage
casks’’ to include Renewed Amendment
No. 16 to Certificate of Compliance No.
1004.
DATES: The effective date of September
14, 2020, for the direct final rule
published June 30, 2020 (85 FR 39049),
is confirmed.
ADDRESSES: Please refer to Docket ID
NRC–2019–0202 when contacting the
NRC about the availability of
information for this action. You may
obtain publicly-available information
related to this action by any of the
following methods:
• Federal Rulemaking Website: Go to
https://www.regulations.gov and search
for Docket ID NRC–2019–0202. Address
questions about NRC dockets to Carol
Gallagher; telephone: 301–415–3463;
email: Carol.Gallagher@nrc.gov. For
technical questions, contact the
individuals listed in the FOR FURTHER
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SUMMARY:
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15:53 Sep 02, 2020
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section of this
document.
• NRC’s Agencywide Documents
Access and Management System
(ADAMS): You may obtain publiclyavailable documents online in the
ADAMS Public Documents collection at
https://www.nrc.gov/reading-rm/
adams.html. To begin the search, select
‘‘Begin Web-based ADAMS Search.’’ For
problems with ADAMS, please contact
the NRC’s Public Document Room (PDR)
reference staff at 1–800–397–4209, 301–
415–4737, or by email to pdr.resource@
nrc.gov. The proposed amendment to
the certificate, the proposed changes to
the technical specifications, and the
preliminary safety evaluation report are
available in ADAMS under Accession
No. ML19262E152. The final
amendment to the certificate, the final
changes to the technical specifications,
and the final safety evaluation report are
available in ADAMS under Accession
No. ML20226A014.
For the Nuclear Regulatory Commission.
Cindy K. Bladey,
Chief, Regulatory Analysis and Rulemaking
Support Branch, Division of Rulemaking,
Environmental, and Financial Support Office
of Nuclear Material Safety and Safeguards.
FOR FURTHER INFORMATION CONTACT:
SUMMARY:
INFORMATION CONTACT
Norma Garcı´a Santos, Office of Nuclear
Material Safety and Safeguards;
telephone: 301–415–6999; email:
Norma.GarciaSantos@nrc.gov or Torre
Taylor, Office of Nuclear Material Safety
and Safeguards; telephone: 301–415–
7900; email: Torre.Taylor@nrc.gov. Both
are staff of the U.S. Nuclear Regulatory
Commission, Washington, DC 20555–
0001.
On June
30, 2020 (85 FR 39049), the NRC
published a direct final rule amending
its regulations in part 72 of title 10 of
the Code of Federal Regulations to
revise the TN Americas LLC,
Standardized NUHOMS® Horizontal
Modular Storage System listing within
the ‘‘List of approved spent fuel storage
casks’’ to include Renewed Amendment
No. 16 to Certificate of Compliance No.
1004. In the direct final rule, the NRC
stated that if no significant adverse
comments were received, the direct
final rule would become effective on
September 14, 2020. The NRC did not
receive any comments on the direct
final rule. Therefore, this direct final
rule will become effective as scheduled.
SUPPLEMENTARY INFORMATION:
Dated August 25, 2020.
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[FR Doc. 2020–19028 Filed 9–2–20; 8:45 am]
BILLING CODE 7590–01–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2019–1070; Product
Identifier 2019–NM–178–AD; Amendment
39–21218; AD 2020–17–13]
RIN 2120–AA64
Airworthiness Directives; The Boeing
Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for certain
The Boeing Company Model 787–8 and
787–9 airplanes. This AD was prompted
by reports that the cabin air compressor
(CAC) outlet check valve failed due to
fatigue of the aluminum flappers, and
exposed the Y-duct to temperatures
above its design limit. This AD requires
installing new inboard and outboard
CAC outlet check valves on the left-side
and right-side cabin air conditioning
and temperature control system
(CACTCS) packs. The FAA is issuing
this AD to address the unsafe condition
on these products.
DATES: This AD is effective October 8,
2020.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of October 8, 2020.
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
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Federal Register / Vol. 85, No. 172 / Thursday, September 3, 2020 / Rules and Regulations
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–2019–1070.
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–2019–
1070; 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:
Scott Craig, Aerospace Engineer, Cabin
Safety and Environmental Systems
Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198;
phone and fax: 206–231–3566; email:
Michael.S.Craig@faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion
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 and 787–9 airplanes. The
NPRM published in the Federal
Register on January 10, 2020 (85 FR
1295). The NPRM was prompted by
reports that the CAC outlet check valve
failed due to fatigue of the aluminum
flappers, and exposed the Y-duct to
temperatures above its design limit. The
NPRM proposed to require installing
new inboard and outboard CAC outlet
check valves on the left-side and rightside CACTCS packs.
The FAA is issuing this AD to address
failed CAC outlet check valves, which
could expose the flight deck and
passenger cabin to smoke and fumes,
and lead to reduced crew performance
or produce passenger discomfort. Offgassed compounds could cause
respiratory distress and could cause
serious injury for an individual with a
compromised respiratory system.
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Comments
The FAA gave the public the
opportunity to participate in developing
this final rule. The following presents
the comments received on the NPRM
and the FAA’s response to each
comment.
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Support for the NPRM
The Air Line Pilots Association,
International, stated that it supports the
NPRM.
Request to Reference Part Number for
Parts Installation Prohibition Within
the AD
All Nippon Airways (ANA) requested
that the FAA reference CAC outlet
check valve, part number (P/N)
7010105H01, directly in paragraph (i) of
the proposed AD. ANA noted that
paragraph (i) of the proposed AD stated
that ‘‘no person may install a CAC outlet
check valve, with a part number listed
in paragraph 1.B, ‘Spares Affected’ of
Boeing Service Bulletin B787–81205–
SB210108–00, Issue 002, dated October
15, 2019, on any airplane.’’ ANA
pointed out that only CACTCS Pack P/
Ns are listed in paragraph 1.B, ‘‘Spares
Affected’’ of Boeing Service Bulletin
B787–81205–SB210108–00, Issue 002,
dated October 15, 2019 (‘‘SB B787–
81205–SB210108–00, Issue 002’’), and
the part number of the CAC outlet check
valve that is of concern is not listed.
The FAA agrees with the request for
the reasons provided. Although SB
B787–81205–SB210108–00, Issue 002,
does list CAC outlet check valves part
numbers in paragraph 1.B of the service
bulletin, the CAC outlet check valve
part number that is of concern, P/N
7010105H01, is not listed in paragraph
1.B of the service bulletin. The CAC
outlet check valve part number of
concern, P/N 7010105H01, was
intended to be a part prohibited from
installation. The Accomplishment
Instructions of SB B787–81205–
SB210108–00, Issue 002, Note 9 of the
General Information section states,
among other things, that any CAC outlet
check valve having P/N 7010105H01
cannot be installed again and must be
made unserviceable. Additionally,
supplier service information UTC
Aerospace Systems Service Bulletin
7110097/098/188/189–21–4, dated May
3, 2018; and UTC Aerospace Systems
Service Bulletin 7010097/098/188/189–
21–9, dated May 3, 2018, which are
referenced in SB B787–81205–
SB210108–00, Issue 001; dated May 25,
2018 (‘‘SB B787–81205–SB210108–00,
Issue 001’’), and SB B787–81205–
SB210108–00, Issue 002, also state that
all replaced CAC outlet check valves
having P/N 7010105H01 cannot be
installed again and must be made
unserviceable. The FAA has revised
paragraph (i) of this AD to specify that
no person may install a CAC outlet
check valve with a part number listed in
paragraph 1.B of SB B787–81205–
SB210108–00, Issue 002, or P/N
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7010105H01 on any airplane as of the
effective date of this AD.
Request To Clarify Part Marking
Requirements
American Airlines (AA) and United
Airlines (UA) requested that the FAA
clarify the requirements for marking the
MOD DOT number on the CACTCS pack
identification plate. Both commenters
noted that paragraphs 2.A.(2), 2.A.(3),
2.B.(2), and 2.B.(3) of the
Accomplishment Instructions of SB
B787–81205–SB210108–00, Issue 002,
are listed as ‘‘RC’’ (Required for
Compliance) and specify to replace the
CAC outlet check valve and mark the
MOD DOT number on the CACTCS pack
identification plate. The commenters
pointed out that paragraph (j) of the
proposed AD provides credit for actions
accomplished in accordance with
Boeing Service Bulletin B787–81205–
SB210108–00, Issue 001, which does
not have instructions for marking the
MOD DOT number on the CACTCS pack
identification plate. Because SB B787–
81205–SB210108–00, Issue 002,
specifies to mark the MOD DOT number
on the CACTCS pack identification
plate, but SB B787–81205–SB210108–
00, Issue 001, does not, the commenters
requested clarification on this
requirement.
The FAA agrees to clarify. SB B787–
81205–SB210108–00, Issue 001,
specifies to do actions ‘‘in accordance
with’’ the supplier service information,
which included instructions for part
marking. Therefore, operators that
accomplished this issue of the service
bulletin should have also marked the
MOD DOT number on the CACTCS pack
identification plate. However, the FAA
acknowledges that SB B787–81205–
SB210108–00, Issue 001 specified only
replacing the parts, not marking them. If
operators otherwise complied with SB
B787–81205–SB210108–00, Issue 001,
but did not mark the MOD DOT number
on the CACTCS pack identification
plate, they cannot claim credit for part
marking and must mark the part as
specified in SB B787–81205–SB210108–
00, Issue 002. The FAA has not changed
this AD in this regard.
Request To Clarify Part Marking of an
‘‘X’’ on the CACTCS Pack Identification
Plate
UA requested that the FAA clarify the
requirement to part mark an ‘‘X’’ on the
CACTCS pack identification plate. UA
pointed out that paragraphs 2.A.(2),
2.A.(3), 2.B.(2), and 2.B.(3) of the Work
Instructions of SB B787–81205–
SB210108–00, Issue 002, specify to
mark the MOD DOT number on the
CACTCS pack identification plate. In
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Federal Register / Vol. 85, No. 172 / Thursday, September 3, 2020 / Rules and Regulations
the associated tables, footnote [1]
specifies to ‘‘also part mark an ‘X’ on the
applicable number in the MOD DOT
area of the identification plate . . .’’ UA
stated that the result is that MOD DOT
markings are required in two places,
which UA maintains is redundant and
not consistent.
The FAA agrees to clarify. Footnote
[1] of Tables 1 through 8 of the Work
Instructions of SB B787–81205–
SB210108–00, Issue 002, specifies to
mark an ‘‘X’’ on the identification plate
for the appropriate MOD DOT for
CACTCS pack configuration H05 and
H09 only, which is a separate action
from marking the MOD DOT number on
the CACTCS pack identification plate.
The FAA has not changed this AD in
this regard.
Requests To Update Supplier Warranty
Information
Boeing requested that the FAA update
the Costs of Compliance section of the
NPRM to reflect a name change for the
supplier warranty information from
UTC Aerospace Systems to Collins
Aerospace. The FAA has revised the
Costs of Compliance section of this AD
accordingly.
check valves and more clearly explain
the sequence of events leading to the
unsafe condition. Whereas the NPRM
described the cause of the flapper
fatigue as ‘‘increasing open/close
cycles,’’ Boeing stated that the flapper
fatigue was due to ‘‘open/close cycles
exceeding design requirements.’’ Boeing
also requested that the FAA modify the
Discussion of the NPRM to clarify that
‘‘This [open/close cycles exceeding
design requirements] can cause reverse
flow through the broken check valve
during times of single CAC operation.
With repeated exposure to temperatures
in excess of the Y-Duct design limit, the
duct may degrade and this can lead to
failure of the Y-Duct if not addressed.
Dual CAC operation with a failed YDuct may lead to high temperatures that
can result in off gassing from the duct
material.’’
The FAA agrees that the description
in the NPRM was inaccurate and is
clarified in the previous paragraph.
Since that section of the preamble does
not reappear in the final rule, no change
to the final rule is necessary.
Conclusion
Request To Clarify Discussion
Boeing requested that the FAA modify
portions of the Discussion of the NPRM
to clarify the cause of failing CAC outlet
The FAA reviewed the relevant data,
considered the comments received, and
determined that air safety and the
public interest require adopting this
final rule with the changes described
54887
previously and minor editorial changes.
The FAA has determined that these
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.
The FAA also determined that these
changes will not increase the economic
burden on any operator or increase the
scope of this final rule.
Related Service Information Under 1
CFR Part 51
The FAA reviewed Boeing Service
Bulletin B787–81205–SB210108–00,
Issue 002, dated October 15, 2019. The
service information describes
procedures for installing new inboard
and outboard CAC outlet check valves
on the left-side and right-side CACTCS
packs. 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 90 airplanes of U.S. registry. The
FAA estimates the following costs to
comply with this AD:
ESTIMATED COSTS FOR REQUIRED ACTIONS
Action
Labor cost
Replace CAC outlet check valves ..........
3 work-hours × $85 per hour = $255
per check valve.
According to the manufacturer, some
or all of the costs of this AD may be
covered under warranty by Collins
Aerospace, thereby reducing the cost
impact on affected individuals. The
FAA does not control warranty coverage
for affected individuals. As a result, the
FAA has included all known costs in
the cost estimate.
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Authority for This Rulemaking
Title 49 of the United States Code
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I,
section 106, describes the authority of
the FAA Administrator. Subtitle VII:
Aviation Programs, describes in more
detail the scope of the Agency’s
authority.
The FAA is issuing this rulemaking
under the authority described in
Subtitle VII, Part A, Subpart III, Section
44701: General requirements. Under
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Parts cost
$0
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
Frm 00003
Fmt 4700
$255 per check
valve.
Cost on U.S.
operators
$22,950 per check
valve.
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
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.
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Sfmt 4700
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:
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54888
Federal Register / Vol. 85, No. 172 / Thursday, September 3, 2020 / Rules and Regulations
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 adding
the following new airworthiness
directive (AD):
■
2020–17–13 The Boeing Company:
Amendment 39–21218; Docket No.
FAA–2019–1070; Product Identifier
2019–NM–178–AD.
(a) Effective Date
This AD is effective October 8, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company
Model 787–8 and 787–9 airplanes,
certificated in any category, as identified in
Boeing Service Bulletin B787–81205–
SB210108–00, Issue 002, dated October 15,
2019.
(d) Subject
Air Transport Association (ATA) of
America Code 21, Air conditioning.
(e) Unsafe Condition
This AD was prompted by reports that the
cabin air compressor (CAC) outlet check
valve failed due to fatigue of the aluminum
flappers, and exposed the Y-duct to
temperatures above its design limit. The FAA
is issuing this AD to address this condition,
which could expose the flight deck and
passenger cabin to smoke and fumes, and
lead to reduced crew performance or produce
passenger discomfort. Off-gassed compounds
could cause respiratory distress and could
cause serious injury for an individual with a
compromised respiratory system.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
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(g) Required Actions
Except as specified in paragraph (h) of this
AD: At the applicable times specified in
paragraph 5., ‘‘Compliance,’’ of Boeing
Service Bulletin B787–81205–SB210108–00,
Issue 002, dated October 15, 2019, do all
applicable actions identified as ‘‘RC’’
(required for compliance) in, and in
accordance with, the Accomplishment
Instructions of Boeing Service Bulletin B787–
81205–SB210108–00, Issue 002, dated
October 15, 2019.
(h) Exceptions to Service Information
Specifications
Where Boeing Service Bulletin B787–
81205–SB210108–00, Issue 002, dated
October 15, 2019, uses the phrase ‘‘the Issue
002 date of this service bulletin,’’ this AD
requires using ‘‘the effective date of this AD.’’
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(i) Parts Installation Prohibition
As of the effective date of this AD, no
person may install a CAC outlet check valve,
with a part number listed in paragraph 1.B,
‘‘Spares Affected’’ of Boeing Service Bulletin
B787–81205–SB210108–00, Issue 002, dated
October 15, 2019, or CAC outlet check valve
P/N 7010105H01, on any airplane.
(j) 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 Service
Bulletin B787–81205–SB210108–00, Issue
001, dated May 25, 2018.
(k) 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 (l) 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) For service information that contains
steps that are labeled as Required for
Compliance (RC), the provisions of
paragraphs (k)(4)(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.
(l) Related Information
For more information about this AD,
contact Scott Craig, Aerospace Engineer,
Cabin Safety and Environmental Systems
Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198;
PO 00000
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phone and fax: 206–231–3566; email:
Michael.S.Craig@faa.gov.
(m) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR
part 51.
(2) You must use this service information
as applicable to do the actions required by
this AD, unless the AD specifies otherwise.
(i) Boeing Service Bulletin B787–81205–
SB210108–00, Issue 002, dated October 15,
2019.
(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.
Issued on August 13, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2020–19387 Filed 9–2–20; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2020–0448; Product
Identifier 2020–NM–050–AD; Amendment
39–21219; AD 2020–17–14]
RIN 2120–AA64
Airworthiness Directives; Dassault
Aviation Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
AGENCY:
The FAA is adopting a new
airworthiness directive (AD) for all
Dassault Aviation Model Falcon 10
airplanes. This AD was prompted by a
report of hydraulic fluid on the ground
near the main landing gear (MLG) brake
assembly. The hydraulic leakage started
in a cracked hydraulic pipe, with the
crack likely due to chafing between two
SUMMARY:
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03SER1
Agencies
[Federal Register Volume 85, Number 172 (Thursday, September 3, 2020)]
[Rules and Regulations]
[Pages 54885-54888]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-19387]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2019-1070; Product Identifier 2019-NM-178-AD; Amendment
39-21218; AD 2020-17-13]
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 and 787-9 airplanes. This AD was
prompted by reports that the cabin air compressor (CAC) outlet check
valve failed due to fatigue of the aluminum flappers, and exposed the
Y-duct to temperatures above its design limit. This AD requires
installing new inboard and outboard CAC outlet check valves on the
left-side and right-side cabin air conditioning and temperature control
system (CACTCS) packs. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective October 8, 2020.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 8,
2020.
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
[[Page 54886]]
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-2019-1070.
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-2019-
1070; 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: Scott Craig, Aerospace Engineer, Cabin
Safety and Environmental Systems Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3566;
email: [email protected].
SUPPLEMENTARY INFORMATION:
Discussion
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 and 787-9 airplanes. The NPRM published in the
Federal Register on January 10, 2020 (85 FR 1295). The NPRM was
prompted by reports that the CAC outlet check valve failed due to
fatigue of the aluminum flappers, and exposed the Y-duct to
temperatures above its design limit. The NPRM proposed to require
installing new inboard and outboard CAC outlet check valves on the
left-side and right-side CACTCS packs.
The FAA is issuing this AD to address failed CAC outlet check
valves, which could expose the flight deck and passenger cabin to smoke
and fumes, and lead to reduced crew performance or produce passenger
discomfort. Off-gassed compounds could cause respiratory distress and
could cause serious injury for an individual with a compromised
respiratory system.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The following presents the comments
received on the NPRM and the FAA's response to each comment.
Support for the NPRM
The Air Line Pilots Association, International, stated that it
supports the NPRM.
Request to Reference Part Number for Parts Installation Prohibition
Within the AD
All Nippon Airways (ANA) requested that the FAA reference CAC
outlet check valve, part number (P/N) 7010105H01, directly in paragraph
(i) of the proposed AD. ANA noted that paragraph (i) of the proposed AD
stated that ``no person may install a CAC outlet check valve, with a
part number listed in paragraph 1.B, `Spares Affected' of Boeing
Service Bulletin B787-81205-SB210108-00, Issue 002, dated October 15,
2019, on any airplane.'' ANA pointed out that only CACTCS Pack P/Ns are
listed in paragraph 1.B, ``Spares Affected'' of Boeing Service Bulletin
B787-81205-SB210108-00, Issue 002, dated October 15, 2019 (``SB B787-
81205-SB210108-00, Issue 002''), and the part number of the CAC outlet
check valve that is of concern is not listed.
The FAA agrees with the request for the reasons provided. Although
SB B787-81205-SB210108-00, Issue 002, does list CAC outlet check valves
part numbers in paragraph 1.B of the service bulletin, the CAC outlet
check valve part number that is of concern, P/N 7010105H01, is not
listed in paragraph 1.B of the service bulletin. The CAC outlet check
valve part number of concern, P/N 7010105H01, was intended to be a part
prohibited from installation. The Accomplishment Instructions of SB
B787-81205-SB210108-00, Issue 002, Note 9 of the General Information
section states, among other things, that any CAC outlet check valve
having P/N 7010105H01 cannot be installed again and must be made
unserviceable. Additionally, supplier service information UTC Aerospace
Systems Service Bulletin 7110097/098/188/189-21-4, dated May 3, 2018;
and UTC Aerospace Systems Service Bulletin 7010097/098/188/189-21-9,
dated May 3, 2018, which are referenced in SB B787-81205-SB210108-00,
Issue 001; dated May 25, 2018 (``SB B787-81205-SB210108-00, Issue
001''), and SB B787-81205-SB210108-00, Issue 002, also state that all
replaced CAC outlet check valves having P/N 7010105H01 cannot be
installed again and must be made unserviceable. The FAA has revised
paragraph (i) of this AD to specify that no person may install a CAC
outlet check valve with a part number listed in paragraph 1.B of SB
B787-81205-SB210108-00, Issue 002, or P/N 7010105H01 on any airplane as
of the effective date of this AD.
Request To Clarify Part Marking Requirements
American Airlines (AA) and United Airlines (UA) requested that the
FAA clarify the requirements for marking the MOD DOT number on the
CACTCS pack identification plate. Both commenters noted that paragraphs
2.A.(2), 2.A.(3), 2.B.(2), and 2.B.(3) of the Accomplishment
Instructions of SB B787-81205-SB210108-00, Issue 002, are listed as
``RC'' (Required for Compliance) and specify to replace the CAC outlet
check valve and mark the MOD DOT number on the CACTCS pack
identification plate. The commenters pointed out that paragraph (j) of
the proposed AD provides credit for actions accomplished in accordance
with Boeing Service Bulletin B787-81205-SB210108-00, Issue 001, which
does not have instructions for marking the MOD DOT number on the CACTCS
pack identification plate. Because SB B787-81205-SB210108-00, Issue
002, specifies to mark the MOD DOT number on the CACTCS pack
identification plate, but SB B787-81205-SB210108-00, Issue 001, does
not, the commenters requested clarification on this requirement.
The FAA agrees to clarify. SB B787-81205-SB210108-00, Issue 001,
specifies to do actions ``in accordance with'' the supplier service
information, which included instructions for part marking. Therefore,
operators that accomplished this issue of the service bulletin should
have also marked the MOD DOT number on the CACTCS pack identification
plate. However, the FAA acknowledges that SB B787-81205-SB210108-00,
Issue 001 specified only replacing the parts, not marking them. If
operators otherwise complied with SB B787-81205-SB210108-00, Issue 001,
but did not mark the MOD DOT number on the CACTCS pack identification
plate, they cannot claim credit for part marking and must mark the part
as specified in SB B787-81205-SB210108-00, Issue 002. The FAA has not
changed this AD in this regard.
Request To Clarify Part Marking of an ``X'' on the CACTCS Pack
Identification Plate
UA requested that the FAA clarify the requirement to part mark an
``X'' on the CACTCS pack identification plate. UA pointed out that
paragraphs 2.A.(2), 2.A.(3), 2.B.(2), and 2.B.(3) of the Work
Instructions of SB B787-81205-SB210108-00, Issue 002, specify to mark
the MOD DOT number on the CACTCS pack identification plate. In
[[Page 54887]]
the associated tables, footnote [1] specifies to ``also part mark an
`X' on the applicable number in the MOD DOT area of the identification
plate . . .'' UA stated that the result is that MOD DOT markings are
required in two places, which UA maintains is redundant and not
consistent.
The FAA agrees to clarify. Footnote [1] of Tables 1 through 8 of
the Work Instructions of SB B787-81205-SB210108-00, Issue 002,
specifies to mark an ``X'' on the identification plate for the
appropriate MOD DOT for CACTCS pack configuration H05 and H09 only,
which is a separate action from marking the MOD DOT number on the
CACTCS pack identification plate. The FAA has not changed this AD in
this regard.
Requests To Update Supplier Warranty Information
Boeing requested that the FAA update the Costs of Compliance
section of the NPRM to reflect a name change for the supplier warranty
information from UTC Aerospace Systems to Collins Aerospace. The FAA
has revised the Costs of Compliance section of this AD accordingly.
Request To Clarify Discussion
Boeing requested that the FAA modify portions of the Discussion of
the NPRM to clarify the cause of failing CAC outlet check valves and
more clearly explain the sequence of events leading to the unsafe
condition. Whereas the NPRM described the cause of the flapper fatigue
as ``increasing open/close cycles,'' Boeing stated that the flapper
fatigue was due to ``open/close cycles exceeding design requirements.''
Boeing also requested that the FAA modify the Discussion of the NPRM to
clarify that ``This [open/close cycles exceeding design requirements]
can cause reverse flow through the broken check valve during times of
single CAC operation. With repeated exposure to temperatures in excess
of the Y-Duct design limit, the duct may degrade and this can lead to
failure of the Y-Duct if not addressed. Dual CAC operation with a
failed Y-Duct may lead to high temperatures that can result in off
gassing from the duct material.''
The FAA agrees that the description in the NPRM was inaccurate and
is clarified in the previous paragraph. Since that section of the
preamble does not reappear in the final rule, no change to the final
rule is necessary.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and determined that air safety and the public interest
require adopting this final rule with the changes described previously
and minor editorial changes. The FAA has determined that these 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.
The FAA also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
Related Service Information Under 1 CFR Part 51
The FAA reviewed Boeing Service Bulletin B787-81205-SB210108-00,
Issue 002, dated October 15, 2019. The service information describes
procedures for installing new inboard and outboard CAC outlet check
valves on the left-side and right-side CACTCS packs. 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 90 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Replace CAC outlet check valves.. 3 work-hours x $85 $0 $255 per check $22,950 per check
per hour = $255 valve. valve.
per check valve.
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According to the manufacturer, some or all of the costs of this AD
may be covered under warranty by Collins Aerospace, thereby reducing
the cost impact on affected individuals. The FAA does not control
warranty coverage for affected individuals. As a result, the FAA has
included all known costs in the cost estimate.
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.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
[[Page 54888]]
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):
2020-17-13 The Boeing Company: Amendment 39-21218; Docket No. FAA-
2019-1070; Product Identifier 2019-NM-178-AD.
(a) Effective Date
This AD is effective October 8, 2020.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company Model 787-8 and 787-9
airplanes, certificated in any category, as identified in Boeing
Service Bulletin B787-81205-SB210108-00, Issue 002, dated October
15, 2019.
(d) Subject
Air Transport Association (ATA) of America Code 21, Air
conditioning.
(e) Unsafe Condition
This AD was prompted by reports that the cabin air compressor
(CAC) outlet check valve failed due to fatigue of the aluminum
flappers, and exposed the Y-duct to temperatures above its design
limit. The FAA is issuing this AD to address this condition, which
could expose the flight deck and passenger cabin to smoke and fumes,
and lead to reduced crew performance or produce passenger
discomfort. Off-gassed compounds could cause respiratory distress
and could cause serious injury for an individual with a compromised
respiratory system.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
Except as specified in paragraph (h) of this AD: At the
applicable times specified in paragraph 5., ``Compliance,'' of
Boeing Service Bulletin B787-81205-SB210108-00, Issue 002, dated
October 15, 2019, do all applicable actions identified as ``RC''
(required for compliance) in, and in accordance with, the
Accomplishment Instructions of Boeing Service Bulletin B787-81205-
SB210108-00, Issue 002, dated October 15, 2019.
(h) Exceptions to Service Information Specifications
Where Boeing Service Bulletin B787-81205-SB210108-00, Issue 002,
dated October 15, 2019, uses the phrase ``the Issue 002 date of this
service bulletin,'' this AD requires using ``the effective date of
this AD.''
(i) Parts Installation Prohibition
As of the effective date of this AD, no person may install a CAC
outlet check valve, with a part number listed in paragraph 1.B,
``Spares Affected'' of Boeing Service Bulletin B787-81205-SB210108-
00, Issue 002, dated October 15, 2019, or CAC outlet check valve P/N
7010105H01, on any airplane.
(j) 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 Service Bulletin B787-81205-
SB210108-00, Issue 001, dated May 25, 2018.
(k) 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 (l) 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) For service information that contains steps that are labeled
as Required for Compliance (RC), the provisions of paragraphs
(k)(4)(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.
(l) Related Information
For more information about this AD, contact Scott Craig,
Aerospace Engineer, Cabin Safety and Environmental Systems Section,
FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198;
phone and fax: 206-231-3566; email: [email protected].
(m) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Service Bulletin B787-81205-SB210108-00, Issue 002,
dated October 15, 2019.
(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 August 13, 2020.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2020-19387 Filed 9-2-20; 8:45 am]
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