Airworthiness Directives; General Electric Company Turbofan Engines, 14871-14874 [2023-04869]
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14871
Rules and Regulations
Federal Register
Vol. 88, No. 47
Friday, March 10, 2023
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.
FEDERAL HOUSING FINANCE
AGENCY
12 CFR Part 1238
[No. 2023–N–4]
Orders: Reporting by Regulated
Entities of Stress Testing Results as of
December 31, 2022; Summary
Instructions and Guidance
Federal Housing Finance
Agency.
ACTION: Orders.
AGENCY:
In this document, the Federal
Housing Finance Agency (FHFA)
provides notice that it issued Orders,
dated March 7, 2023, with respect to
stress test reporting as of December 31,
2022, under section 165(i)(2) of the
Dodd-Frank Wall Street Reform and
Consumer Protection Act (Dodd-Frank
Act), as amended by section 401 of the
Economic Growth, Regulatory Relief,
and Consumer Protection Act
(EGRRCPA). Summary Instructions and
Guidance accompanied the Orders to
provide testing scenarios.
DATES: Each Order is applicable March
7, 2023.
FOR FURTHER INFORMATION CONTACT: John
Williams, Associate Director, Office of
Capital Policy, (202) 649–3159,
John.Williams@fha.gov; Sara L. Todd,
Assistant General Counsel, Office of
General Counsel, (202) 649–3527,
Sara.Todd@fhfa.gov; or James Jordan,
Deputy General Counsel, Office of
General Counsel, (202) 649–3570,
James.Jordan@fhfa.gov. For TTY/TRS
users with hearing and speech
disabilities, dial 711 and ask to be
connected to any of the contact numbers
above.
SUPPLEMENTARY INFORMATION:
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SUMMARY:
I. Background
FHFA is responsible for ensuring that
the regulated entities operate in a safe
and sound manner, including the
maintenance of adequate capital and
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16:14 Mar 09, 2023
Jkt 259001
internal controls, that their operations
and activities foster liquid, efficient,
competitive, and resilient national
housing finance markets, and that they
carry out their public policy missions
through authorized activities. See 12
U.S.C. 4513. These Orders are being
issued under 12 U.S.C. 4516(a), which
authorizes the Director of FHFA to
require by Order that the regulated
entities submit regular or special reports
to FHFA and establishes remedies and
procedures for failing to make reports
required by Order. The Orders, through
the accompanying Summary
Instructions and Guidance, prescribe for
the regulated entities the scenarios to be
used for stress testing. The Summary
Instructions and Guidance also provides
to the regulated entities advice
concerning the content and format of
reports required by the Orders and the
rule.
II. Orders, Summary Instructions and
Guidance
For the convenience of the affected
parties and the public, the text of the
Orders follows below in its entirety. The
Orders and Summary Instructions and
Guidance are also available for public
inspection and copying at the Federal
Housing Finance Agency’s Freedom of
Information Act (FOIA) Reading Room
at https://www.fhfa.gov/AboutUs/
FOIAPrivacy/Pages/Reading-Room.aspx
by clicking on ‘‘Click here to view
Orders’’ under the Final Opinions and
Orders heading. You may also access
these documents at https://www.fhfa.gov/
SupervisionRegulation/DoddFrankAct
StressTests.
The text of the Orders is as follows:
Federal Housing Finance Agency
Order Nos. 2023–OR–FNMA–1 and
2023–OR–FHLMC–1
Reporting by Regulated Entities of Stress
Testing Results as of December 31, 2022
Whereas, section 165(i)(2) of the
Dodd-Frank Wall Street Reform and
Consumer Protection Act (‘‘Dodd-Frank
Act’’), as amended by section 401 of the
Economic Growth, Regulatory Relief,
and Consumer Protection Act
(‘‘EGRRCPA’’) requires certain financial
companies with total consolidated
assets of more than $250 billion, and
which are regulated by a primary
Federal financial regulatory agency, to
conduct periodic stress tests to
determine whether the companies have
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the capital necessary to absorb losses as
a result of severely adverse economic
conditions;
Whereas, FHFA’s rule implementing
section 165(i)(2) of the Dodd-Frank Act,
as amended by section 401 of EGRRCPA
is codified as 12 CFR 1238 and requires
that ‘‘[e]ach Enterprise must file a report
in the manner and form established by
FHFA.’’ 12 CFR 1238.5(b);
Whereas, The Board of Governors of
the Federal Reserve System issued stress
testing scenarios on February 9, 2023;
and
Whereas, section 1314 of the Safety
and Soundness Act, 12 U.S.C. 4514(a)
authorizes the Director of FHFA to
require regulated entities, by general or
specific order, to submit such reports on
their management, activities, and
operation as the Director considers
appropriate.
Now therefore, it is hereby Ordered as
follows:
Each Enterprise shall report to FHFA
and to the Board of Governors of the
Federal Reserve System the results of
the stress testing as required by 12 CFR
1238, in the form and with the content
described therein and in the Summary
Instructions and Guidance, with
Appendices 1 through 7 thereto,
accompanying this Order and dated
March 7, 2023.
It Is So Ordered, this the 7th day of
March, 2023.
This Order is effective immediately.
Signed at Washington, DC, this 7th day of
March, 2023.
Sandra L. Thompson,
Director, Federal Housing Finance Agency.
Sandra L. Thompson,
Director, Federal Housing Finance Agency.
[FR Doc. 2023–04980 Filed 3–9–23; 8:45 am]
BILLING CODE 8070–01–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2023–0423; Project
Identifier AD–2022–01525–E; Amendment
39–22366; AD 2023–04–19]
RIN 2120–AA64
Airworthiness Directives; General
Electric Company Turbofan Engines
Federal Aviation
Administration (FAA), DOT.
AGENCY:
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Federal Register / Vol. 88, No. 47 / Friday, March 10, 2023 / Rules and Regulations
Final rule; request for
comments.
ACTION:
The FAA is adopting a new
airworthiness directive (AD) for certain
General Electric Company (GE) GE90–
110B1 and GE90–115B model turbofan
engines. This AD was prompted by a
manufacturer investigation which
discovered that florescent penetrant
inspections (FPI) were not performed on
the dovetail pressure face of certain
high-pressure compressor (HPC) rotor
spools at overhaul. This AD requires FPI
of the affected HPC rotor stage 7–9 spool
and, depending on the results of the
inspection, replacement with a part
eligible for installation. The FAA is
issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective March 27,
2023.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of March 27, 2023.
The FAA must receive comments on
this AD by April 24, 2023.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
regulations.gov. Follow the instructions
for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
AD Docket: You may examine the AD
docket at regulations.gov by searching
for and locating Docket No. FAA–2023–
0423; 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 street address for
Docket Operations is listed above.
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SUMMARY:
Material Incorporated by Reference
• For service information identified
in this final rule, contact General
Electric Company, GE Aviation, Room
285, 1 Neumann Way, Cincinnati, OH
45215; phone: (513) 552–3272; email:
aviation.fleetsupport@ge.com.
• You may view this service
information 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
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16:14 Mar 09, 2023
Jkt 259001
FAA, call (817) 222–5110. It is also
available at regulations.gov by searching
for and locating Docket No. FAA–2023–
0423.
FOR FURTHER INFORMATION CONTACT:
Stephen Elwin, Aviation Safety
Engineer, ECO Branch, FAA, 1200
District Avenue, Burlington, MA 01803;
phone: (781) 238–7236; email:
Stephen.L.Elwin@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA received a report that a GE
overhaul shop internal investigation
found that several HPC rotor stage 7–9
spools were shipped to operators prior
to a final FPI being performed on the
dovetail pressure face. A final FPI is
performed to confirm that any linear
indications have been removed, as
indications on the HPC rotor stage 7–9
spool may potentially propagate and
eventually lead to failure of the HPC
rotor stage 7–9 spool. This condition, if
not addressed, could result in an inflight shutdown, damage to the engine,
and damage to the airplane. The FAA is
issuing this AD to address the unsafe
condition on these products.
FAA’s Determination
The FAA is issuing this AD because
the agency has determined the unsafe
condition described previously is likely
to exist or develop in other products of
the same type design.
Related Service Information Under 1
CFR Part 51
The FAA reviewed GE GE90–100
Service Bulletin 72–0905 R00, dated
July 25, 2022. This service information
specifies procedures for performing a
piece-part inspection of the affected
HPC rotor stage 7–9 spools. This service
information is reasonably available
because the interested parties have
access to it through their normal course
of business or by the means identified
in ADDRESSES.
AD Requirements
This AD requires, at the next shop
visit after the effective date of this AD,
performing an FPI of each affected HPC
rotor stage 7–9 spool and, depending on
the results of the inspection,
replacement with a part eligible for
installation.
Justification for Immediate Adoption
and Determination of the Effective Date
Section 553(b)(3)(B) of the
Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies
to dispense with notice and comment
procedures for rules when the agency,
for ‘‘good cause,’’ finds that those
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procedures are ‘‘impracticable,
unnecessary, or contrary to the public
interest.’’ Under this section, an agency,
upon finding good cause, may issue a
final rule without providing notice and
seeking comment prior to issuance.
Further, section 553(d) of the APA
authorizes agencies to make rules
effective in less than thirty days, upon
a finding of good cause.
The FAA has found the risk to the
flying public justifies waiving notice
and comment prior to adoption of this
rule because no domestic operators use
this product. It is unlikely that the FAA
will receive any adverse comments or
useful information about this AD from
any U.S. operator. Accordingly, notice
and opportunity for prior public
comment are unnecessary, pursuant to 5
U.S.C. 553(b)(3)(B). In addition, for the
foregoing reason(s), the FAA finds that
good cause exists pursuant to 5 U.S.C.
553(d) for making this amendment
effective in less than 30 days.
Comments Invited
The FAA invites you to send any
written data, views, or arguments about
this final rule. Send your comments to
an address listed under ADDRESSES.
Include ‘‘FAA–2023–0423 Project
Identifier AD–2022–01525–E’’ at the
beginning of your comments. The most
helpful comments reference a specific
portion of the final rule, explain the
reason for any recommended change,
and include supporting data. The FAA
will consider all comments received by
the closing date and may amend this
final rule because of those comments.
Except for Confidential Business
Information (CBI) as described in the
following paragraph, and other
information as described in 14 CFR
11.35, the FAA will post all comments
received, without change, to
regulations.gov, including any personal
information you provide. The agency
will also post a report summarizing each
substantive verbal contact received
about this final rule.
Confidential Business Information
CBI is commercial or financial
information that is both customarily and
actually treated as private by its owner.
Under the Freedom of Information Act
(FOIA) (5 U.S.C. 552), CBI is exempt
from public disclosure. If your
comments responsive to this AD contain
commercial or financial information
that is customarily treated as private,
that you actually treat as private, and
that is relevant or responsive to this AD,
it is important that you clearly designate
the submitted comments as CBI. Please
mark each page of your submission
containing CBI as ‘‘PROPIN.’’ The FAA
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Federal Register / Vol. 88, No. 47 / Friday, March 10, 2023 / Rules and Regulations
will treat such marked submissions as
confidential under the FOIA, and they
will not be placed in the public docket
of this AD. Submissions containing CBI
should be sent to Stephen Elwin,
Aviation Safety Engineer, ECO Branch,
FAA, 1200 District Avenue, Burlington,
MA 01803. Any commentary that the
FAA receives which is not specifically
designated as CBI will be placed in the
public docket for this rulemaking.
adopt this rule without prior notice and
comment, RFA analysis is not required.
Regulatory Flexibility Act
The requirements of the Regulatory
Flexibility Act (RFA) do not apply when
an agency finds good cause pursuant to
5 U.S.C. 553 to adopt a rule without
prior notice and comment. Because FAA
has determined that it has good cause to
Costs of Compliance
The FAA estimates that this AD
affects 0 engines installed on airplanes
of U.S. registry.
The FAA estimates the following
costs to comply with this AD:
ESTIMATED COSTS
Action
Labor cost
Perform an FPI of the HPC rotor stage 7–9
spool.
5 work-hours × $85 per hour = $425 .............
The FAA estimates the following
costs to do any necessary replacements
that would be required based on the
Cost per
product
Parts cost
results of the inspection. The agency has
no way of determining the number of
$0
Cost on U.S.
operators
$425
$0
aircraft that might need these
replacements:
ON-CONDITION COSTS
Action
Labor cost
Replace the HPC rotor stage 7–9 spool ......................
40 work-hours × $85 per hour = $3,400 ......................
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.
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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:
16:14 Mar 09, 2023
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:
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:
Jkt 259001
2023–04–19 General Electric Company:
Amendment 39–22366; Docket No.
FAA–2023–0423; Project Identifier AD–
2022–01525–E.
(a) Effective Date
This airworthiness directive (AD) is
effective March 27, 2023.
(b) Affected ADs
None.
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$1,183,200
Cost per
product
$1,186,600
(c) Applicability
This AD applies to General Electric
Company (GE) GE90–110B1 and GE90–115B
model turbofan engines with an installed
high-pressure compressor (HPC) rotor stage
7–9 spool with part number (P/N)
2032M23G01, P/N 2032M23G02, P/N
2676M00G01, or P/N 2676M00G02, and a
serial number listed in paragraph 4.,
Appendix—A, Table 1 of GE GE90–100
Service Bulletin (SB) 72–0905 R00, dated
July 25, 2022 (GE SB 72–0905).
(d) Subject
Joint Aircraft System Component (JASC)
Code 7230, Turbine Engine Compressor
Section.
(e) Unsafe Condition
PART 39—AIRWORTHINESS
DIRECTIVES
■
Regulatory Findings
VerDate Sep<11>2014
(1) Is not a ‘‘significant regulatory
action’’ under Executive Order 12866,
and
(2) Will not affect intrastate aviation
in Alaska.
Parts cost
This AD was prompted by a manufacturer
investigation which revealed that florescent
penetrant inspections (FPI) were not
performed on the dovetail pressure face of
certain HPC rotor stage 7–9 spools at
overhaul. The FAA is issuing this AD to
prevent the failure of the HPC rotor stage 7–
9 spool. The unsafe condition, if not
addressed, could result in an in-flight
shutdown, damage to the engine, and damage
to the airplane.
(f) Compliance
Comply with this AD within the
compliance times specified, unless already
done.
(g) Required Actions
(1) At the next engine shop visit after the
effective date of this AD, perform an FPI of
the dovetail pressure face of the affected HPC
rotor stage 7–9 spool in accordance with the
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Accomplishment Instructions, paragraph
3.A.(1)(a) of GE SB 72–0905.
(2) If, during the FPI required by paragraph
(g)(1) of this AD, the HPC rotor stage 7–9
spool does not meet the part serviceability
criteria in the Accomplishment Instructions,
paragraph 3.A.(1)(a) of GE SB 72–0905,
before further flight, replace the compressor
rotor stage 7–9 spool with a part eligible for
installation.
(h) Definition
For the purpose of this AD, an ‘‘engine
shop visit’’ is the induction of an engine into
the shop for maintenance involving
separation of pairs of major mating engine
flanges, except for the following situations,
which do not constitute an engine shop visit:
(i) Separation of engine flanges solely for
the purposes of transportation of the engine
without subsequent maintenance; or
(ii) Separation of engine flanges solely for
the purpose of replacing the fan or propulsor
without subsequent maintenance.
(i) Alternative Methods of Compliance
(AMOCs)
(1) The Manager, ECO 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 and
email it to: ANE-AD-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.
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(j) Related Information
For more information about this AD,
contact Stephen Elwin, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District
Avenue, Burlington, MA 01803; phone: (781)
238–7236; email: Stephen.L.Elwin@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) GE GE90–100 Service Bulletin 72–0905
R00, dated July 25, 2022.
(ii) [Reserved]
(3) For GE service information identified in
this AD, contact General Electric Company,
1 Neumann Way, Cincinnati, OH 45215;
phone: (513) 552–3272; email:
aviation.fleetsupport@ae.ge.com; website:
ge.com.
(4) You may view this service information
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 service information
that is incorporated by reference at the
VerDate Sep<11>2014
16:14 Mar 09, 2023
Jkt 259001
National Archives and Records
Administration (NARA). For information on
the availability of this material at NARA,
email: fr.inspection@nara.gov, or go to:
www.archives.gov/federal-register/cfr/ibrlocations.html.
Issued on February 25, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness
Division, Aircraft Certification Service.
[FR Doc. 2023–04869 Filed 3–9–23; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2022–1058; Project
Identifier AD–2022–00256–T; Amendment
39–22340; AD 2023–03–15]
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) 2021–07–
09, which applies 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. AD 2021–07–09
required repetitively inspecting all trim
air diffuser ducts or sidewall riser duct
assemblies (collectively referred to as
TADDs) for damage, including repetitive
structural inspections of the center fuel
tanks for damage, and performing
applicable on-condition actions. Since
the FAA issued AD 2021–07–09, the
agency has determined that the existing
requirements do not adequately address
the unsafe condition. This AD continues
to require repetitive inspections of the
TADDs for damage, with revised
compliance times, and repair if
applicable. This AD also requires
repetitive replacement of the TADDs
and removes the structural inspections
of the center fuel tanks. This AD also
prohibits the installation of affected
parts. This AD removes certain
airplanes from the applicability. The
FAA is issuing this AD to address the
unsafe condition on these products.
DATES: This AD is effective April 14,
2023.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of April 14, 2023.
ADDRESSES:
SUMMARY:
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AD Docket: You may examine the AD
docket at regulations.gov under Docket
No. FAA–2022–1058; 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 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
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 at
regulations.gov under Docket No. FAA–
2022–1058.
FOR FURTHER INFORMATION CONTACT:
Nicole S. Tsang, Aerospace Engineer,
Cabin Safety and Environmental
Systems Section, FAA, Seattle ACO
Branch, 2200 South 216th St., Des
Moines, WA 98198; phone: 206–231–
3959; email: nicole.s.tsang@faa.gov.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to supersede AD 2021–07–09,
Amendment 39–21486 (86 FR 17899,
April 7, 2021) (AD 2021–07–09). AD
2021–07–09 applied 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 September 8,
2022 (87 FR 54919). The NPRM was
prompted by reports of sealant
deteriorating on the outside of the
center wing fuel tank and analysis
showing that sealant may deteriorate
inside the tank due to excess heat from
TADDs. The NPRM was also prompted
by reports indicating that the high
temperature composite material TADD
failed. AD 2021–07–09 requires
replacing original fiberglass fabric
material with high temperature
composite material TADDs, repetitively
inspecting the TADDs for damage, and
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[Federal Register Volume 88, Number 47 (Friday, March 10, 2023)]
[Rules and Regulations]
[Pages 14871-14874]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-04869]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-0423; Project Identifier AD-2022-01525-E;
Amendment 39-22366; AD 2023-04-19]
RIN 2120-AA64
Airworthiness Directives; General Electric Company Turbofan
Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
[[Page 14872]]
ACTION: Final rule; request for comments.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for
certain General Electric Company (GE) GE90-110B1 and GE90-115B model
turbofan engines. This AD was prompted by a manufacturer investigation
which discovered that florescent penetrant inspections (FPI) were not
performed on the dovetail pressure face of certain high-pressure
compressor (HPC) rotor spools at overhaul. This AD requires FPI of the
affected HPC rotor stage 7-9 spool and, depending on the results of the
inspection, replacement with a part eligible for installation. The FAA
is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective March 27, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of March 27,
2023.
The FAA must receive comments on this AD by April 24, 2023.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to regulations.gov. Follow
the instructions for submitting comments.
Fax: 202-493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at regulations.gov by
searching for and locating Docket No. FAA-2023-0423; 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 street address for Docket
Operations is listed above.
Material Incorporated by Reference
For service information identified in this final rule,
contact General Electric Company, GE Aviation, Room 285, 1 Neumann Way,
Cincinnati, OH 45215; phone: (513) 552-3272; email:
ge.com">[email protected]ge.com.
You may view this service information 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. It is
also available at regulations.gov by searching for and locating Docket
No. FAA-2023-0423.
FOR FURTHER INFORMATION CONTACT: Stephen Elwin, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803;
phone: (781) 238-7236; email: [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA received a report that a GE overhaul shop internal
investigation found that several HPC rotor stage 7-9 spools were
shipped to operators prior to a final FPI being performed on the
dovetail pressure face. A final FPI is performed to confirm that any
linear indications have been removed, as indications on the HPC rotor
stage 7-9 spool may potentially propagate and eventually lead to
failure of the HPC rotor stage 7-9 spool. This condition, if not
addressed, could result in an in-flight shutdown, damage to the engine,
and damage to the airplane. The FAA is issuing this AD to address the
unsafe condition on these products.
FAA's Determination
The FAA is issuing this AD because the agency has determined the
unsafe condition described previously is likely to exist or develop in
other products of the same type design.
Related Service Information Under 1 CFR Part 51
The FAA reviewed GE GE90-100 Service Bulletin 72-0905 R00, dated
July 25, 2022. This service information specifies procedures for
performing a piece-part inspection of the affected HPC rotor stage 7-9
spools. This service information is reasonably available because the
interested parties have access to it through their normal course of
business or by the means identified in ADDRESSES.
AD Requirements
This AD requires, at the next shop visit after the effective date
of this AD, performing an FPI of each affected HPC rotor stage 7-9
spool and, depending on the results of the inspection, replacement with
a part eligible for installation.
Justification for Immediate Adoption and Determination of the Effective
Date
Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
The FAA has found the risk to the flying public justifies waiving
notice and comment prior to adoption of this rule because no domestic
operators use this product. It is unlikely that the FAA will receive
any adverse comments or useful information about this AD from any U.S.
operator. Accordingly, notice and opportunity for prior public comment
are unnecessary, pursuant to 5 U.S.C. 553(b)(3)(B). In addition, for
the foregoing reason(s), the FAA finds that good cause exists pursuant
to 5 U.S.C. 553(d) for making this amendment effective in less than 30
days.
Comments Invited
The FAA invites you to send any written data, views, or arguments
about this final rule. Send your comments to an address listed under
ADDRESSES. Include ``FAA-2023-0423 Project Identifier AD-2022-01525-E''
at the beginning of your comments. The most helpful comments reference
a specific portion of the final rule, explain the reason for any
recommended change, and include supporting data. The FAA will consider
all comments received by the closing date and may amend this final rule
because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
regulations.gov, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this final rule.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this AD contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this AD, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA
[[Page 14873]]
will treat such marked submissions as confidential under the FOIA, and
they will not be placed in the public docket of this AD. Submissions
containing CBI should be sent to Stephen Elwin, Aviation Safety
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803.
Any commentary that the FAA receives which is not specifically
designated as CBI will be placed in the public docket for this
rulemaking.
Regulatory Flexibility Act
The requirements of the Regulatory Flexibility Act (RFA) do not
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt
a rule without prior notice and comment. Because FAA has determined
that it has good cause to adopt this rule without prior notice and
comment, RFA analysis is not required.
Costs of Compliance
The FAA estimates that this AD affects 0 engines installed on
airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:
Estimated Costs
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Perform an FPI of the HPC rotor stage 5 work-hours x $85 per $0 $425 $0
7-9 spool. hour = $425.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary
replacements that would be required based on the results of the
inspection. The agency has no way of determining the number of aircraft
that might need these replacements:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Replace the HPC rotor stage 7-9 spool......... 40 work-hours x $85 per hour = $1,183,200 $1,186,600
$3,400.
----------------------------------------------------------------------------------------------------------------
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, and
(2) Will not affect intrastate aviation in Alaska.
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:
2023-04-19 General Electric Company: Amendment 39-22366; Docket No.
FAA-2023-0423; Project Identifier AD-2022-01525-E.
(a) Effective Date
This airworthiness directive (AD) is effective March 27, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to General Electric Company (GE) GE90-110B1 and
GE90-115B model turbofan engines with an installed high-pressure
compressor (HPC) rotor stage 7-9 spool with part number (P/N)
2032M23G01, P/N 2032M23G02, P/N 2676M00G01, or P/N 2676M00G02, and a
serial number listed in paragraph 4., Appendix--A, Table 1 of GE
GE90-100 Service Bulletin (SB) 72-0905 R00, dated July 25, 2022 (GE
SB 72-0905).
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by a manufacturer investigation which
revealed that florescent penetrant inspections (FPI) were not
performed on the dovetail pressure face of certain HPC rotor stage
7-9 spools at overhaul. The FAA is issuing this AD to prevent the
failure of the HPC rotor stage 7-9 spool. The unsafe condition, if
not addressed, could result in an in-flight shutdown, damage to the
engine, and damage to the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) At the next engine shop visit after the effective date of
this AD, perform an FPI of the dovetail pressure face of the
affected HPC rotor stage 7-9 spool in accordance with the
[[Page 14874]]
Accomplishment Instructions, paragraph 3.A.(1)(a) of GE SB 72-0905.
(2) If, during the FPI required by paragraph (g)(1) of this AD,
the HPC rotor stage 7-9 spool does not meet the part serviceability
criteria in the Accomplishment Instructions, paragraph 3.A.(1)(a) of
GE SB 72-0905, before further flight, replace the compressor rotor
stage 7-9 spool with a part eligible for installation.
(h) Definition
For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance involving
separation of pairs of major mating engine flanges, except for the
following situations, which do not constitute an engine shop visit:
(i) Separation of engine flanges solely for the purposes of
transportation of the engine without subsequent maintenance; or
(ii) Separation of engine flanges solely for the purpose of
replacing the fan or propulsor without subsequent maintenance.
(i) Alternative Methods of Compliance (AMOCs)
(1) The Manager, ECO 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 and email it 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.
(j) Related Information
For more information about this AD, contact Stephen Elwin,
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue,
Burlington, MA 01803; phone: (781) 238-7236; 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) GE GE90-100 Service Bulletin 72-0905 R00, dated July 25,
2022.
(ii) [Reserved]
(3) For GE service information identified in this AD, contact
General Electric Company, 1 Neumann Way, Cincinnati, OH 45215;
phone: (513) 552-3272; email: ge.com">[email protected]ge.com;
website: ge.com.
(4) You may view this service information 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 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: www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued on February 25, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-04869 Filed 3-9-23; 8:45 am]
BILLING CODE 4910-13-P
