Rule2026-18423
Airworthiness Directives; International Aero Engines AG Engines; Correction
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
September 10, 2026
Effective
September 24, 2026
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to certain International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525- D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines. As published, paragraph (g) of the regulatory text contains a typographical error. This document corrects that error. In all other respects, the original document remains the same.
Full Text
<html>
<head>
<title>Federal Register, Volume 91 Issue 174 (Thursday, September 10, 2026)</title>
</head>
<body><pre>
[Federal Register Volume 91, Number 174 (Thursday, September 10, 2026)]
[Rules and Regulations]
[Pages 57491-57492]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-18423]
========================================================================
Rules and Regulations
Federal Register
________________________________________________________________________
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 Register / Vol. 91, No. 174 / Thursday, September 10, 2026 /
Rules and Regulations
[[Page 57491]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-2555; Project Identifier AD-2025-00433-E;
Amendment 39-23446; AD 2026-17-03]
RIN 2120-AA64
Airworthiness Directives; International Aero Engines AG Engines;
Correction
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule; correction.
-----------------------------------------------------------------------
SUMMARY: The FAA is correcting an airworthiness directive (AD) that was
published in the Federal Register. That AD applies to certain
International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-
D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and
V2533-A5 engines. As published, paragraph (g) of the regulatory text
contains a typographical error. This document corrects that error. In
all other respects, the original document remains the same.
DATES: This correction is effective September 24, 2026. The effective
date of AD 2026-17-03 remains September 24, 2026.
ADDRESSES: AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a>
under Docket No. FAA-2025-2555; 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; correction, any
comments received, and other information. The address for Docket
Operations is U.S. Department of Transportation, Docket Operations, M-
30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue
SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Carol Nguyen, Aviation Safety
Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; phone:
(781) 238-7655; email: <a href="/cdn-cgi/l/email-protection#e88b899a8784c6868f9d918d86a88e8989c68f879e"><span class="__cf_email__" data-cfemail="751614071a195b1b12000c101b351314145b121a03">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
AD 2026-17-03, Amendment 39-23446 (91 FR 53713, August 20, 2026)
(AD 2026-17-03), requires replacement of affected 3rd stage High
Pressure Compressor (HPC) rotor blades with parts eligible for
installation for certain IAE AG Model V2522-A5, V2524-A5, V2525-D5,
V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and
V2533-A5 engines.
Need for the Correction
As published, paragraph (g) of AD 2026-17-03 contains a
typographical error. The word ``blade'' was inadvertently omitted from
the final regulatory text. Paragraph (g) of AD 2026-17-03 should read,
``. . . where the 3rd stage HPC rotor blade is exposed . . .,'' which
is consistent with the intent of the proposed AD (90 FR 51600, November
18, 2025).
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 September 24, 2026.
Since this action only corrects the typographical error, it has no
adverse economic impact and imposes no additional burden on any person.
Therefore, the FAA has determined that notice and public 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 FAA 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 new airworthiness
directive:
2026-17-03 International Aero Engines AG: Amendment 39-23446; Docket
No. FAA-2025-2555; Project Identifier AD-2025-00433-E.
(a) Effective Date
This airworthiness directive (AD) is effective September 24,
2026.
(b) Affected ADs
None.
(c) Applicability
This AD applies to International Aero Engines AG (IAE AG) Model
V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-
D5, V2530-A5, V2531-E5, and V2533-A5 engines with a 3rd stage high-
pressure compressor (HPC) rotor blade having part number (P/N)
6A8353 or P/N 6A8688 installed.
(d) Subject
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine
Compressor Section.
(e) Unsafe Condition
This AD was prompted by multiple reports of failed 3rd stage HPC
rotor blades that resulted in engine fires, unplanned engine
removals, aborted takeoffs, and in-flight shutdowns (IFSD). The FAA
is issuing this AD to prevent failure of the 3rd stage HPC rotor
blades. The unsafe condition, if not addressed, could result in
engine fire, reduced control of the airplane, and engine IFSD.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
At the next engine shop visit after the effective date of this
AD where the 3rd stage HPC rotor blade is exposed, replace the full
set of 3rd stage HPC rotor blades with parts eligible for
installation.
(h) Definitions
(1) For the purpose of this AD, a ``part eligible for
installation'' is:
(i) A 3rd stage HPC rotor blade having P/N 6C8368, 6C8403, or
later approved P/N; or
(ii) A 3rd stage HPC rotor blade modified to P/N 6A8353-001 or
P/N 6A8688-001.
[[Page 57492]]
(2) For the purpose of this AD, a ``3rd stage HPC rotor blade
exposure'' is when any 3rd stage HPC rotor blade is removed from the
HPC stage 3 to 8 drum.
(3) For the purpose of this AD, an ``engine shop visit'' is the
induction of an engine into the shop for maintenance.
(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 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 (j) of this AD and email to: <a href="/cdn-cgi/l/email-protection#f4b5b9bbb7b4929595da939b82"><span class="__cf_email__" data-cfemail="7435393b37341215155a131b02">[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.
(j) Additional Information
For more information about this AD, contact Carol Nguyen,
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines,
WA 98198; phone: (781) 238-7655; email: <a href="/cdn-cgi/l/email-protection#086b697a676426666f7d716d66486e6969266f677e"><span class="__cf_email__" data-cfemail="305351425f5c1e5e574549555e705651511e575f46">[email protected]</span></a>.
(k) Material Incorporated by Reference
None.
Issued on September 4, 2026.
Brian Knaup,
Acting Deputy Director, Integrated Certificate Management Division,
Aircraft Certification Service.
[FR Doc. 2026-18423 Filed 9-9-26; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on September 10, 2026.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.