Rule2024-10093
Airworthiness Directives; General Electric Company Engines
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
May 13, 2024
Effective
May 14, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to certain General Electric Company (GE) Model GE90-110B1 and GE90-115B engines. As published, references to the service information include a typographical error in the regulatory text of the AD. This document corrects that error in all references. In all other respects, the original document remains the same.
Full Text
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<title>Federal Register, Volume 89 Issue 93 (Monday, May 13, 2024)</title>
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[Federal Register Volume 89, Number 93 (Monday, May 13, 2024)]
[Rules and Regulations]
[Pages 41304-41306]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-10093]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-0771; Project Identifier AD-2023-01251-E;
Amendment 39-22720; AD 2024-06-15]
RIN 2120-AA64
Airworthiness Directives; General Electric Company Engines
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; request for comments; correction.
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SUMMARY: The FAA is correcting an airworthiness directive (AD) that
published in the Federal Register. That AD applies to certain General
Electric Company (GE) Model GE90-110B1 and GE90-115B engines. As
published, references to the service information include a
typographical error in the regulatory text of the AD. This document
corrects that error in all references. In all other respects, the
original document remains the same.
DATES: This correction is effective May 14, 2024. The effective date of
AD 2024-06-15 remains May 14, 2024. The date for submitting comments
remains June 13, 2024.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 14, 2024
(89 FR 33215, April 29, 2024).
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-0771, 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:
<bullet> For service information identified in this final rule,
contact General Electric Company, 1 Neumann Way, Cincinnati, OH 45215;
phone: (513) 552-3272; email: <a href="/cdn-cgi/l/email-protection#d1b0a7b8b0a5b8bebfffb7bdb4b4a5a2a4a1a1bea3a591b0b4ffedb0f1b9a3b4b7ec" http: ge.com">ge.com</a>">aviation.fleetsupport@ae.<a href="http://ge.com">ge.com</a></a>; website:
<a href="http://ge.com">ge.com</a>.
<bullet> 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 <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2024-0771.
FOR FURTHER INFORMATION CONTACT: Alexander Thickstun, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone:
(202) 267-8292; email: <a href="/cdn-cgi/l/email-protection#dcbdb0b9a4bdb2b8b9aef2b1f2a8b4b5bfb7afa8a9b29cbabdbdf2bbb3aa"><span class="__cf_email__" data-cfemail="84e5e8e1fce5eae0e1f6aae9aaf0ecede7eff7f0f1eac4e2e5e5aae3ebf2">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
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-2024-0771; Project Identifier AD-2023-01251-
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
<a href="http://regulations.gov">regulations.gov</a>, 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 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
Alexander Thickstun, Aviation Safety Engineer, FAA, 2200
[[Page 41305]]
South 216th Street, Des Moines, WA 98198. Any commentary that the FAA
receives which is not specifically designated as CBI will be placed in
the public docket for this rulemaking.
Background
AD 2024-06-15, Amendment 39-22720 (89 FR 33215, April 29, 2024),
requires repetitive ultrasonic inspections (USIs) of the interstage
high-pressure turbine (HPT) rotor seal for cracks and removal from
service if necessary. As a mandatory terminating action to the
repetitive USIs of the interstage HPT rotor seal, this AD requires
replacement of the interstage HPT rotor seal.
Need for Correction
As published, paragraphs (c), (g)(1), (g)(1)(i) and (ii), and
(g)(2) in the regulatory text of AD 2024-06-15 are incorrect. These
paragraphs refer to the service information as ``GE GE90-100 Service
Bulletin (SB) 72-A0908 R00, dated July 7, 2023'' and ``GE SB 72-
A0908.'' The correct service information is ``GE GE90-100 Service
Bulletin (SB) 72-0908 R00, dated July 7, 2023'' and ``GE SB 72-0908.''
Related Service Information Under 1 CFR Part 51
The FAA reviewed GE GE90-100 Service Bulletin (SB) 72-0908 R00,
dated July 7, 2023, which specifies procedures for performing a USI of
the interstage HPT rotor seal. 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.
Correction of Publication
This document corrects an error and correctly adds the AD as an
amendment to 14 CFR 39.13. Although no other part of the preamble or
regulatory information has been corrected, the FAA is publishing the
entire rule in the Federal Register.
The effective date of this AD remains May 14, 2024.
Since this action only corrects a typographical error in the
references to the service information, it has no adverse economic
impact and imposes no additional burden on any person. Therefore, the
FAA has determined that prior notice and public comment procedures are
unnecessary.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, pursuant to the authority delegated to me by the
Administrator, the Federal Aviation Administration amends part 39 of
the Federal Aviation Regulations (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 [Corrected]
0
2. The FAA amends Sec. 39.13 by adding the following airworthiness
directive:
2024-06-15 General Electric Company: Amendment 39-22720; Docket No.
FAA-2024-0771; Project Identifier AD-2023-01251-E.
(a) Effective Date
This airworthiness directive (AD) is effective May 14, 2024.
(b) Affected ADs
None.
(c) Applicability
This AD applies to General Electric Company (GE) Model GE90-
110B1 and GE90-115B engines with an installed interstage high-
pressure turbine (HPT) rotor seal having a part number and serial
number listed in Table 1 or Table 2 of GE GE90-100 Service Bulletin
(SB) 72-0908 R00, dated July 7, 2023 (GE SB 72-0908).
(d) Subject
Joint Aircraft System Component (JASC) Code 7250, Turbine
Section.
(e) Unsafe Condition
This AD was prompted by a report of an aborted takeoff due to
left engine failure caused by liberation of the interstage HPT rotor
seal rim. The FAA is issuing this AD to prevent failure of the HPT.
The unsafe condition, if not addressed, could result in uncontained
HPT failure, release of high-energy debris, damage to the engine,
damage to the airplane, and possible loss of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) Perform an ultrasonic inspection (USI) of the interstage HPT
rotor seal in accordance with the Accomplishment Instructions,
paragraph 3.B.(2), of GE SB 72-0908, as follows:
(i) Perform an initial USI before reaching the part cycles since
new limit listed in Table 1 or Table 2, as applicable, of GE SB 72-
0908, or within 10 flight cycles after the effective date of this
AD, whichever occurs later; and
(ii) Repeat the USI thereafter within every 100 cycles or 175
cycles, as applicable, as listed in Table 1 or Table 2 of GE SB 72-
0908, since the last inspection.
(2) If, during any USI required by paragraph (g)(1)(i) or (ii)
of this AD, a non-serviceable indication is found, as defined in
paragraph 3.B.(2)(b) of GE SB 72-0908, before further flight, remove
the interstage HPT rotor seal from service.
(h) Mandatory Terminating Action
As a terminating action to the repetitive USI required by
paragraph (g)(1)(i) or (ii) of this AD, at the next engine shop
visit after the effective date of this AD, remove the affected
interstage HPT rotor seal from service.
(i) Definition
For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance involving the
separation of pairs of major mating engine case flanges, except
separation of engine flanges solely for the purposes of
transportation of the engine without subsequent maintenance, which
does not constitute an engine shop visit.
(j) 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 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 (k) of this AD and email to: <a href="/cdn-cgi/l/email-protection#1a5b545f375b5e375b5755595a7c7b7b347d756c"><span class="__cf_email__" data-cfemail="62232c274f23264f232f2d21220403034c050d14">[email protected]</span></a>.
(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.
(k) Additional Information
For more information about this AD, contact Alexander Thickstun,
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines,
WA 98198; phone: (202) 267-8292; email:
<a href="/cdn-cgi/l/email-protection#89e8e5ecf1e8e7edecfba7e4a7fde1e0eae2fafdfce7c9efe8e8a7eee6ff"><span class="__cf_email__" data-cfemail="2b4a474e534a454f4e590546055f43424840585f5e456b4d4a4a054c445d">[email protected]</span></a>.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) General Electric Company GE90-100 Service Bulletin 72-0908
R00, dated July 7, 2023.
(ii) [Reserved]
(3) For service information identified in this AD, contact
General Electric Company, 1 Newman Way, Cincinnati, OH 45215; phone:
(513) 552-3272; email: <a href="/cdn-cgi/l/email-protection#6f0e19060e1b0600014109030a0a1b1c1a1f1f001d1b2f0e0a41530e4f071d0a0952" http: ge.com">ge.com</a>">aviation.fleetsupport@ae.<a href="http://ge.com">ge.com</a></a>; website:
<a href="http://ge.com">ge.com</a>.
(4) You may view this service information at the FAA,
Airworthiness Products Section,
[[Page 41306]]
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 <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#086e7a2661667b786d6b7c6167664866697a69266f677e"><span class="__cf_email__" data-cfemail="0b6d79256265787b6e687f6264654b656a796a256c647d">[email protected]</span></a>.
Issued on May 2, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2024-10093 Filed 5-6-24; 11:15 am]
BILLING CODE 4910-13-P
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