Airworthiness Directives; The Boeing Company Airplanes, 1368-1371 [2025-00144]
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Federal Register / Vol. 90, No. 5 / Wednesday, January 8, 2025 / Rules and Regulations
(d) Subject
Joint Aircraft System Component (JASC)
Code 7230, Turbine Engine Compressor
Section.
replace the HPC stage 2 seal in accordance
with the Accomplishment Instructions,
paragraph 5.B.(7)(b) of CFM SB LEAP–1B–
72–00–0394–01A–930A–D, Issue 002–00.
(e) Unsafe Condition
This AD was prompted by a report of a
quality escape involving certain highpressure compressor (HPC) stage 2 seals
manufactured without detailed finish
machining, which could result in deeper rubs
and mechanical damage to the seal teeth of
the stage 3–4 compressor rotor blisk (stage 3–
4 blisk) of the mating compressor rotor
during initial operation. The FAA is issuing
this AD to prevent uncontained failure of the
stage 3–4 blisk. The unsafe condition, if not
addressed, could result in uncontained part
release, damage to the engine, and damage to
the aircraft.
(h) Alternative Methods of Compliance
(AMOCs)
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(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
(1) Before accumulating 2,900 cycles since
new (CSN) or within 10 flight cycles after the
effective date of this AD, whichever occurs
later, perform the following:
(i) A visual inspection of the HPC stage 2
seal in accordance with the Accomplishment
Instructions, paragraph 5.B.(3) of CFM
Service Bulletin LEAP–1B–72–00–0394–
01A–930A–D, Issue 002–00, dated January
23, 2024 (CFM SB LEAP–1B–72–00–0394–
01A–930A–D, Issue 002–00).
(ii) A visual inspection of the forward arm
seal teeth of the stage 3–4 blisk in accordance
with the Accomplishment Instructions,
paragraph 5.B.(4) of CFM SB LEAP–1B–72–
00–0394–01A–930A–D, Issue 002–00.
(iii) An eddy current inspection of the
forward arm seal teeth of the stage 3–4 blisk
in accordance with the Accomplishment
Instructions, paragraph 5.B.(5) of CFM SB
LEAP–1B–72–00–0394–01A–930A–D, Issue
002–00.
(2) If, during the inspection required by
paragraph (g)(1)(i) of this AD, any of the HPC
stage 2 seal segments fail to meet the
serviceability criteria specified in the
Accomplishment Instructions, paragraph
5.B.(3) of CFM SB LEAP–1B–72–00–0394–
01A–930A–D, Issue 002–00, before further
flight, remove the unserviceable HPC stage 2
seal segments from service.
(3) If, during the inspections required by
paragraphs (g)(1)(ii) and (iii) of this AD, the
stage 3–4 blisk fails to meet the serviceability
criteria specified in the Accomplishment
Instructions, paragraph 5.B.(6) of CFM SB
LEAP–1B–72–00–0394–01A–930A–D, Issue
002–00, before further flight:
(i) Remove the stage 3–4 blisk from service;
(ii) Remove all four HPC stage 2 seal
segments from service; and
(iii) Replace the stage 3–4 blisk in
accordance with the Accomplishment
Instructions, paragraph 5.B.(7)(a) of CFM SB
LEAP–1B–72–00–0394–01A–930A–D, Issue
002–00.
(4) If, during the actions required by
paragraphs (g)(2) and (3) of this AD, the HPC
stage 2 seal is removed, before further flight,
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(1) The Manager, AIR–520 Continued
Operational Safety 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 AIR–520 Continued
Operational Safety Branch, send it to the
attention of the person identified in
paragraph (i) of this AD and email to:
AMOC@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.
(i) Additional Information
For more information about this AD,
contact Mehdi Lamnyi, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des
Moines, WA 98198; phone: (781) 238–7743;
email: mehdi.lamnyi@faa.gov.
(j) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference
(IBR) of the material listed in this paragraph
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as
applicable to do the actions required by this
AD, unless the AD specifies otherwise.
(i) CFM International, S.A. (CFM) Service
Bulletin LEAP–1B–72–00–0394–01A–930A–
D, Issue 002–00, dated January 23, 2024.
(ii) [Reserved]
(3) For CFM material identified in this AD,
contact CFM, GE Aviation Fleet Support, 1
Neumann Way, M/D Room 285, Cincinnati,
OH 45215; phone: (877) 432–3272; email:
aviation.fleetsupport@ge.com.
(4) You may view this material at the FAA,
Airworthiness Products Section, Operational
Safety Branch, 1200 District Avenue,
Burlington, MA 01803. For information on
the availability of this material at the FAA,
call (817) 222–5110.
(5) You may view this material at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
visit www.archives.gov/federal-register/cfr/
ibr-locations or email fr.inspection@nara.gov.
Issued on December 3, 2024.
Peter A. White,
Deputy Director, Integrated Certificate
Management Division, Aircraft Certification
Service.
[FR Doc. 2025–00207 Filed 1–7–25; 8:45 am]
BILLING CODE 4910–13–P
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2024–1689; Project
Identifier AD–2024–00109–T; Amendment
39–22910; AD 2024–25–08]
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 all The
Boeing Company Model 767–200, –300,
and –300F airplanes. This AD was
prompted by a report of a main landing
gear (MLG) collapse event following
maintenance where a grinder was
operating outside of its input
parameters, resulting in possible heat
damage to the outer cylinder of the
MLG. This AD requires replacing
affected outer cylinders. The FAA is
issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective February 12,
2025.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of February 12, 2025.
ADDRESSES:
AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2024–1689; or in person at
Docket Operations between 9 a.m. and
5 p.m., Monday through Friday, except
Federal holidays. The AD docket
contains this final rule, any comments
received, and other information. The
address for Docket Operations is U.S.
Department of Transportation, Docket
Operations, M–30, West Building
Ground Floor, Room W12–140, 1200
New Jersey Avenue SE, Washington, DC
20590.
Material Incorporated by Reference:
• For Boeing material identified in
this AD, contact Boeing Commercial
Airplanes, Attention: Contractual & Data
Services (C&DS), 2600 Westminster
Blvd., MC 110–SK57, Seal Beach, CA
90740–5600; telephone 562–797–1717;
website myboeingfleet.com.
• You may view this material 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 regulations.gov
under Docket No. FAA–2024–1689.
SUMMARY:
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Federal Register / Vol. 90, No. 5 / Wednesday, January 8, 2025 / Rules and Regulations
FOR FURTHER INFORMATION CONTACT:
Stefanie Roesli, Aviation Safety
Engineer, FAA, 2200 South 216th St.,
Des Moines, WA 98198; phone: 206–
231–3964; email: Stefanie.N.Roesli@
faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would
apply to all The Boeing Company Model
767–200, –300, and –300F series
airplanes. The NPRM published in the
Federal Register on June 20, 2024 (89
FR 51856), corrected July 15, 2024 (89
FR 57377). The NPRM was prompted by
a report of a MLG collapse event
following maintenance where a grinder
was operating outside of its input
parameters, resulting in possible heat
damage to the outer cylinder of the
MLG. In the NPRM, the FAA proposed
to require replacing any affected outer
cylinders. The FAA is issuing this AD
to address any heat damage to the outer
cylinder of the landing gear, which
could result in the inability of a
principal structural element to sustain
limit load, gear collapse resulting in loss
of control of the airplane, and potential
for off-runway excursion.
Discussion of Final Airworthiness
Directive
Comments
The FAA received comments from Air
Line Pilots Association, International,
Aviation Partners Boeing, and an
individual commenter, who supported
the NPRM without change.
The FAA received an additional
comment from The Boeing Company.
The following presents the comment
received on the NPRM and the FAA’s
response.
Effect of Winglets on Accomplishment
of the Proposed Actions
Aviation Partners Boeing stated that
accomplishing Supplemental Type
Certificate (STC) ST01920SE does not
affect the actions specified in the
proposed AD.
The FAA concurs with the
commenter. The FAA has redesignated
paragraph (c) of the proposed AD as
paragraph (c)(1) of this AD and added
paragraph (c)(2) to this AD to state that
installation of STC ST01920SE does not
affect the ability to accomplish the
actions required by this AD. Therefore,
for airplanes on which STC ST01920SE
is installed, a ‘‘change in product’’
alternative method of compliance
(AMOC) approval request is not
necessary to comply with the
requirements of 14 CFR 39.17.
applies except in accordance with the
requirements of that AD. Further, 14
CFR 39.9 imposes a continuing
obligation to maintain compliance with
an AD by establishing a separate
violation for each time an aircraft is
operated that fails to meet AD
requirements. Since this AD captures all
possibly affected operators and requires
replacement of the affected parts, and
since those operators have an ongoing
obligation to ensure that the ADmandated configuration is maintained, a
parts installation prohibition is
unnecessary. The FAA has not changed
this AD as a result of the request.
Request for Parts Installation
Prohibition Paragraph
Boeing requested the addition of a
parts installation prohibition paragraph
as of the effective date of this AD.
Boeing stated that the parts prohibition
paragraph should prohibit installation
of any affected outer cylinders with part
numbers and serial numbers listed in
Appendix A, B, or C of Boeing Alert
Requirements Bulletin 767–32A0253
RB, dated February 6, 2024, unless the
parts have been inspected, applicable
on-condition corrective actions have
been done, and the parts have been part
marked, in accordance with Appendix D
of Boeing Alert Requirements Bulletin
767–32A0253 RB. The MLG outer
cylinders are rotable structural
components (RSC) that may be moved
from one airplane to another.
Additionally, the commenter asserted
that since the applicability of the
proposed AD covers all Model 767–200,
–300, and –300F series airplanes in
service, the parts installation
prohibition is needed to prevent the
affected outer cylinders from being
moved onto airplanes that have already
complied with the required actions of
the AD.
The FAA agrees to clarify. This AD
applies to all The Boeing Company
Model 767–200, –300, and –300F
airplanes. 14 CFR 39.7 specifies that
once an AD is issued, no person may
operate a product to which the AD
Conclusion
Action
Labor cost
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The FAA estimates the following
costs to do any necessary replacements
that would be required based on the
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results of the inspection or maintenance
records check. The agency has no way
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The FAA reviewed the relevant data,
considered any comments received, and
determined that air safety requires
adopting this AD as proposed.
Accordingly, the FAA is issuing this AD
to address the unsafe condition on these
products. Except for minor editorial
changes, this AD is adopted as proposed
in the NPRM. None of the changes will
increase the economic burden on any
operator.
Material Incorporated by Reference
Under 1 CFR Part 51
The FAA reviewed Boeing Alert
Requirements Bulletin 767–32A0253
RB, dated February 6, 2024. This
material specifies procedures for
performing a check of maintenance
records or performing an inspection of
the left and right MLG outer cylinders
for any affected part numbers and serial
numbers and replacing affected
cylinders.
This material 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 574 airplanes of U.S. registry.
The FAA estimates the following costs
to comply with this AD:
Parts cost
Up to 3 work-hours × $85 per hour = $255
Inspection or maintenance records check
for affected part numbers.
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$0
Cost per
product
Up to $255 ..........
Cost on U.S.
operators
Up to $146,370.
of determining the number of aircraft
that might need this replacement:
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Federal Register / Vol. 90, No. 5 / Wednesday, January 8, 2025 / Rules and Regulations
ON-CONDITION COSTS
Action
Labor cost
Parts cost
189 work-hours * × $85 per hour = $16,065 ............
Replacement of MLG outer cylinder (83 affected
parts).
* $500,000
Cost per product
$516,065
* Task work-hours and parts cost are based on one MLG outer cylinder replacement.
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.
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List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
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:
■
2024–25–08 The Boeing Company:
Amendment 39–22910; Docket No.
FAA–2024–1689; Project Identifier AD–
2024–00109–T.
(a) Effective Date
This airworthiness directive (AD) is
effective February 12, 2025.
(b) Affected ADs
None.
(c) Applicability
(1) This AD applies to all The Boeing
Company Model 767–200, –300, and –300F
series airplanes, certificated in any category.
(2) Installation of Supplemental Type
Certificate (STC) ST01920SE does not affect
the ability to accomplish the actions required
by this AD. Therefore, for airplanes on which
STC ST01920SE is installed, a ‘‘change in
product’’ alternative method of compliance
(AMOC) approval request is not necessary to
comply with the requirements of 14 CFR
39.17.
(d) Subject
Air Transport Association (ATA) of
America Code 32, Landing Gear.
(e) Unsafe Condition
This AD was prompted by a report of a
main landing gear (MLG) collapse event
following maintenance where a grinder was
operating outside of its input parameters,
resulting in possible heat damage to the outer
cylinder of the MLG. The FAA is issuing this
AD to address any heat damage to the outer
cylinder of the landing gear. The unsafe
condition, if not addressed, could result in
the inability of a principal structural element
to sustain limit load, gear collapse resulting
in loss of control of the airplane, and
potential for off-runway excursion.
The Amendment
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
(g) Required Actions
Except as specified by paragraph (h) of this
AD: At the applicable times specified in the
‘‘Compliance’’ paragraph of Boeing Alert
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Requirements Bulletin 767–32A0253 RB,
dated February 6, 2024, do all applicable
actions identified in, and in accordance with,
the Accomplishment Instructions of Boeing
Alert Requirements Bulletin 767–32A0253
RB, dated February 6, 2024.
Note 1 to paragraph (g): Guidance for
accomplishing the actions required by this
AD can be found in Boeing Alert Service
Bulletin 767–32A0253, dated February 6,
2024, which is referred to in Boeing Alert
Requirements Bulletin 767–32A0253 RB,
dated February 6, 2024.
(h) Exceptions to Service Information
Specifications
Where the Boeing Recommended
Compliance Time column of the table in the
‘‘Compliance’’ paragraph of Boeing Alert
Requirements Bulletin 767–32A0253 RB,
dated February 6, 2024, uses the phrase ‘‘the
Original Issue date of Requirements Bulletin
767–32A0253 RB,’’ this AD requires using
the effective date of this AD.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, AIR–520, Continued
Operational Safety Branch, FAA, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector
or responsible Flight Standards Office, as
appropriate. If sending information directly
to the manager of the certification office,
send it to the attention of the person
identified in paragraph (j)(1) of this AD.
Information may be emailed to: AMOC@
faa.gov.
(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, AIR–520, Continued Operational
Safety 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.
(j) Related Information
(1) For more information about this AD,
contact Stefanie Roesli, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–3964;
email: Stefanie.N.Roesli@faa.gov.
(2) Service information identified in this
AD that is not incorporated by reference is
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Federal Register / Vol. 90, No. 5 / Wednesday, January 8, 2025 / Rules and Regulations
available at the address specified in
paragraph (k)(3) of this AD.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register
approved the incorporation by reference of
the material listed in this paragraph under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as
applicable to do the actions required by this
AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin
767–32A0253 RB, dated February 6, 2024.
(ii) [Reserved]
(3) For Boeing material identified in this
AD, contact Boeing Commercial Airplanes,
Attention: Contractual & Data Services
(C&DS), 2600 Westminster Blvd., MC 110–
SK57, Seal Beach, CA 90740–5600; telephone
562–797–1717; website myboeingfleet.com.
(4) You may view this material 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 material at the
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
visit www.archives.gov/federal-register/cfr/
ibr-locationsoremailfr.inspection@nara.gov.
Issued on December 9, 2024.
Peter A. White,
Deputy Director, Integrated Certificate
Management Division, Aircraft Certification
Service.
[FR Doc. 2025–00144 Filed 1–7–25; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 97
[Docket No. 31582; Amdt. No. 4145]
Standard Instrument Approach
Procedures, and Takeoff Minimums
and Obstacle Departure Procedures;
Miscellaneous Amendments
Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
AGENCY:
This rule establishes, amends,
suspends, or removes Standard
Instrument Approach Procedures
(SIAPS) and associated Takeoff
Minimums and Obstacle Departure
procedures (ODPs) for operations at
certain airports. These regulatory
actions are needed because of the
adoption of new or revised criteria, or
because of changes occurring in the
National Airspace System, such as the
commissioning of new navigational
facilities, adding new obstacles, or
changing air traffic requirements. These
changes are designed to provide safe
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SUMMARY:
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and efficient use of the navigable
airspace and to promote safe flight
operations under instrument flight rules
at the affected airports.
DATES: This rule is effective January 8,
2025. The compliance date for each
SIAP, associated Takeoff Minimums,
and ODP is specified in the amendatory
provisions.
The incorporation by reference of
certain publications listed in the
regulations is approved by the Director
of the Federal Register as of January 8,
2025.
ADDRESSES: Availability of matters
incorporated by reference in the
amendment is as follows:
For Examination
1. U.S. Department of Transportation,
Docket Ops-M30. 1200 New Jersey
Avenue SE, West Bldg., Ground Floor,
Washington, DC, 20590–0001.
2. The FAA Air Traffic Organization
Service Area in which the affected
airport is located;
3. The office of Aeronautical
Information Services, 6500 South
MacArthur Blvd., Oklahoma City, OK
73169 or,
4. The National Archives and Records
Administration (NARA). For
information on the availability of this
material at NARA, visit
www.archives.gov/federal-register/cfr/
ibr-locations or email fr.inspection@
nara.gov.
Availability
All SIAPs and Takeoff Minimums and
ODPs are available online free of charge.
Visit the National Flight Data Center at
nfdc.faa.gov to register. Additionally,
individual SIAP and Takeoff Minimums
and ODP copies may be obtained from
the FAA Air Traffic Organization
Service Area in which the affected
airport is located.
FOR FURTHER INFORMATION CONTACT:
Thomas J. Nichols, Standards Section
Manager, Flight Procedures and
Airspace Group, Flight Technologies
and Procedures Division, Office of
Safety Standards, Flight Standards
Service, Aviation Safety, Federal
Aviation Administration. Mailing
Address: FAA Mike Monroney
Aeronautical Center, Flight Procedures
and Airspace Group, 6500 South
MacArthur Blvd., STB Annex, Bldg 26,
Room 217, Oklahoma City, OK 73099.
Telephone (405) 954–1139.
SUPPLEMENTARY INFORMATION: This rule
amends 14 CFR part 97 by establishing,
amending, suspending, or removes
SIAPS, Takeoff Minimums and/or
ODPS. The complete regulatory
description of each SIAP and its
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1371
associated Takeoff Minimums or ODP
for an identified airport is listed on FAA
form documents which are incorporated
by reference in this amendment under 5
U.S.C. 552(a), 1 CFR part 51, and 14
CFR 97.20. The applicable FAA Forms
are 8260–3, 8260–4, 8260–5, 8260–15A,
8260–15B, when required by an entry
on 8260–15A, and 8260–15C.
The large number of SIAPs, Takeoff
Minimums and ODPs, their complex
nature, and the need for a special format
make publication in the Federal
Register expensive and impractical.
Further, pilots do not use the regulatory
text of the SIAPs, Takeoff Minimums or
ODPs, but instead refer to their graphic
depiction on charts printed by
publishers of aeronautical materials.
Thus, the advantages of incorporation
by reference are realized and
publication of the complete description
of each SIAP, Takeoff Minimums and
ODP listed on FAA form documents is
unnecessary. This amendment provides
the affected CFR sections and specifies
the types of SIAPS, Takeoff Minimums
and ODPs with their applicable effective
dates. This amendment also identifies
the airport and its location, the
procedure, and the amendment number.
Availability and Summary of Material
Incorporated by Reference
The material incorporated by
reference is publicly available as listed
in the ADDRESSES section.
The material incorporated by
reference describes SIAPS, Takeoff
Minimums and/or ODPs as identified in
the amendatory language for part 97 of
this final rule.
The Rule
This amendment to 14 CFR part 97 is
effective upon publication of each
separate SIAP, Takeoff Minimums and
ODP as amended in the transmittal.
Some SIAP and Takeoff Minimums and
textual ODP amendments may have
been issued previously by the FAA in a
Flight Data Center (FDC) Notice to Air
Missions (NOTAM) as an emergency
action of immediate flights safety
relating directly to published
aeronautical charts.
The circumstances that created the
need for some SIAP and Takeoff
Minimums and ODP amendments may
require making them effective in less
than 30 days. For the remaining SIAPs
and Takeoff Minimums and ODPs, an
effective date at least 30 days after
publication is provided.
Further, the SIAPs and Takeoff
Minimums and ODPs contained in this
amendment are based on the criteria
contained in the U.S. Standard for
Terminal Instrument Procedures
E:\FR\FM\08JAR1.SGM
08JAR1
]]>Agencies
[Federal Register Volume 90, Number 5 (Wednesday, January 8, 2025)]
[Rules and Regulations]
[Pages 1368-1371]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-00144]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-1689; Project Identifier AD-2024-00109-T;
Amendment 39-22910; AD 2024-25-08]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
The Boeing Company Model 767-200, -300, and -300F airplanes. This AD
was prompted by a report of a main landing gear (MLG) collapse event
following maintenance where a grinder was operating outside of its
input parameters, resulting in possible heat damage to the outer
cylinder of the MLG. This AD requires replacing affected outer
cylinders. The FAA is issuing this AD to address the unsafe condition
on these products.
DATES: This AD is effective February 12, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of February 12,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2024-1689; or in person at Docket Operations between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD
docket contains this final rule, any comments received, and other
information. The address for Docket Operations is U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
For Boeing material identified in this AD, contact Boeing
Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600;
telephone 562-797-1717; website myboeingfleet.com.
You may view this material 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 regulations.gov under
Docket No. FAA-2024-1689.
[[Page 1369]]
FOR FURTHER INFORMATION CONTACT: Stefanie Roesli, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-
231-3964; email: [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all The Boeing Company
Model 767-200, -300, and -300F series airplanes. The NPRM published in
the Federal Register on June 20, 2024 (89 FR 51856), corrected July 15,
2024 (89 FR 57377). The NPRM was prompted by a report of a MLG collapse
event following maintenance where a grinder was operating outside of
its input parameters, resulting in possible heat damage to the outer
cylinder of the MLG. In the NPRM, the FAA proposed to require replacing
any affected outer cylinders. The FAA is issuing this AD to address any
heat damage to the outer cylinder of the landing gear, which could
result in the inability of a principal structural element to sustain
limit load, gear collapse resulting in loss of control of the airplane,
and potential for off-runway excursion.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from Air Line Pilots Association,
International, Aviation Partners Boeing, and an individual commenter,
who supported the NPRM without change.
The FAA received an additional comment from The Boeing Company. The
following presents the comment received on the NPRM and the FAA's
response.
Effect of Winglets on Accomplishment of the Proposed Actions
Aviation Partners Boeing stated that accomplishing Supplemental
Type Certificate (STC) ST01920SE does not affect the actions specified
in the proposed AD.
The FAA concurs with the commenter. The FAA has redesignated
paragraph (c) of the proposed AD as paragraph (c)(1) of this AD and
added paragraph (c)(2) to this AD to state that installation of STC
ST01920SE does not affect the ability to accomplish the actions
required by this AD. Therefore, for airplanes on which STC ST01920SE is
installed, a ``change in product'' alternative method of compliance
(AMOC) approval request is not necessary to comply with the
requirements of 14 CFR 39.17.
Request for Parts Installation Prohibition Paragraph
Boeing requested the addition of a parts installation prohibition
paragraph as of the effective date of this AD. Boeing stated that the
parts prohibition paragraph should prohibit installation of any
affected outer cylinders with part numbers and serial numbers listed in
Appendix A, B, or C of Boeing Alert Requirements Bulletin 767-32A0253
RB, dated February 6, 2024, unless the parts have been inspected,
applicable on-condition corrective actions have been done, and the
parts have been part marked, in accordance with Appendix D of Boeing
Alert Requirements Bulletin 767-32A0253 RB. The MLG outer cylinders are
rotable structural components (RSC) that may be moved from one airplane
to another. Additionally, the commenter asserted that since the
applicability of the proposed AD covers all Model 767-200, -300, and -
300F series airplanes in service, the parts installation prohibition is
needed to prevent the affected outer cylinders from being moved onto
airplanes that have already complied with the required actions of the
AD.
The FAA agrees to clarify. This AD applies to all The Boeing
Company Model 767-200, -300, and -300F airplanes. 14 CFR 39.7 specifies
that once an AD is issued, no person may operate a product to which the
AD applies except in accordance with the requirements of that AD.
Further, 14 CFR 39.9 imposes a continuing obligation to maintain
compliance with an AD by establishing a separate violation for each
time an aircraft is operated that fails to meet AD requirements. Since
this AD captures all possibly affected operators and requires
replacement of the affected parts, and since those operators have an
ongoing obligation to ensure that the AD-mandated configuration is
maintained, a parts installation prohibition is unnecessary. The FAA
has not changed this AD as a result of the request.
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting this AD as
proposed. Accordingly, the FAA is issuing this AD to address the unsafe
condition on these products. Except for minor editorial changes, this
AD is adopted as proposed in the NPRM. None of the changes will
increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed Boeing Alert Requirements Bulletin 767-32A0253 RB,
dated February 6, 2024. This material specifies procedures for
performing a check of maintenance records or performing an inspection
of the left and right MLG outer cylinders for any affected part numbers
and serial numbers and replacing affected cylinders.
This material 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 574 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Inspection or maintenance Up to 3 work- $0 Up to $255............. Up to $146,370.
records check for affected hours x $85 per
part numbers. hour = $255.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
inspection or maintenance records check. The agency has no way of
determining the number of aircraft that might need this replacement:
[[Page 1370]]
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Action Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
Replacement of MLG outer cylinder (83 189 work-hours * x $85 per * $500,000 $516,065
affected parts). hour = $16,065.
----------------------------------------------------------------------------------------------------------------
* Task work-hours and parts cost are based on one MLG outer cylinder replacement.
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:
2024-25-08 The Boeing Company: Amendment 39-22910; Docket No. FAA-
2024-1689; Project Identifier AD-2024-00109-T.
(a) Effective Date
This airworthiness directive (AD) is effective February 12,
2025.
(b) Affected ADs
None.
(c) Applicability
(1) This AD applies to all The Boeing Company Model 767-200, -
300, and -300F series airplanes, certificated in any category.
(2) Installation of Supplemental Type Certificate (STC)
ST01920SE does not affect the ability to accomplish the actions
required by this AD. Therefore, for airplanes on which STC ST01920SE
is installed, a ``change in product'' alternative method of
compliance (AMOC) approval request is not necessary to comply with
the requirements of 14 CFR 39.17.
(d) Subject
Air Transport Association (ATA) of America Code 32, Landing
Gear.
(e) Unsafe Condition
This AD was prompted by a report of a main landing gear (MLG)
collapse event following maintenance where a grinder was operating
outside of its input parameters, resulting in possible heat damage
to the outer cylinder of the MLG. The FAA is issuing this AD to
address any heat damage to the outer cylinder of the landing gear.
The unsafe condition, if not addressed, could result in the
inability of a principal structural element to sustain limit load,
gear collapse resulting in loss of control of the airplane, and
potential for off-runway excursion.
(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 the ``Compliance'' paragraph of Boeing
Alert Requirements Bulletin 767-32A0253 RB, dated February 6, 2024,
do all applicable actions identified in, and in accordance with, the
Accomplishment Instructions of Boeing Alert Requirements Bulletin
767-32A0253 RB, dated February 6, 2024.
Note 1 to paragraph (g): Guidance for accomplishing the actions
required by this AD can be found in Boeing Alert Service Bulletin
767-32A0253, dated February 6, 2024, which is referred to in Boeing
Alert Requirements Bulletin 767-32A0253 RB, dated February 6, 2024.
(h) Exceptions to Service Information Specifications
Where the Boeing Recommended Compliance Time column of the table
in the ``Compliance'' paragraph of Boeing Alert Requirements
Bulletin 767-32A0253 RB, dated February 6, 2024, uses the phrase
``the Original Issue date of Requirements Bulletin 767-32A0253 RB,''
this AD requires using the effective date of this AD.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, AIR-520, Continued Operational Safety Branch,
FAA, has the authority to approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19. In accordance with 14
CFR 39.19, send your request to your principal inspector or
responsible Flight Standards Office, as appropriate. If sending
information directly to the manager of the certification office,
send it to the attention of the person identified in paragraph
(j)(1) 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 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, AIR-
520, Continued Operational Safety 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.
(j) Related Information
(1) For more information about this AD, contact Stefanie Roesli,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 206-231-3964; email: [email protected].
(2) Service information identified in this AD that is not
incorporated by reference is
[[Page 1371]]
available at the address specified in paragraph (k)(3) of this AD.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the material listed in this paragraph
under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this material as applicable to do the actions
required by this AD, unless the AD specifies otherwise.
(i) Boeing Alert Requirements Bulletin 767-32A0253 RB, dated
February 6, 2024.
(ii) [Reserved]
(3) For Boeing material identified in this AD, contact Boeing
Commercial Airplanes, Attention: Contractual & Data Services (C&DS),
2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600;
telephone 562-797-1717; website myboeingfleet.com.
(4) You may view this material 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 material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit www.archives.gov/federal-register/cfr/[email protected]">www.archives.gov/federal-register/cfr/[email protected].
Issued on December 9, 2024.
Peter A. White,
Deputy Director, Integrated Certificate Management Division, Aircraft
Certification Service.
[FR Doc. 2025-00144 Filed 1-7-25; 8:45 am]
BILLING CODE 4910-13-P
