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AD 2025-23-10

Published 2025-11-21 · Document 2025-20598

This is a dated source edition. Current legal effect, aircraft applicability, installed configuration and compliance remain unknown. It has not been promoted as a regulatory determination or qualified as paid-report evidence.

Effective date printed in this source: 2025-12-08
Source acquired: 2026-09-28
PDF corroboration: Not verified in this HTML-only batch

Open the official complete publication · Find this AD number in the FAA catalog

Applicability wording in this source

(c) Applicability

    This AD applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) 
Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, 
Trent 1000-D, Trent 1000-E, Trent 1000-G, Trent 1000-H, Trent 1000-
A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, 
Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 
1000-K2, and Trent 1000-L2 engines.

Serial numbers, installed parts, exceptions and service-document requirements have not been evaluated. An engine model mentioned here is not evidence that an aircraft has that engine installed.

Fully written literal labels recorded in this clause:

This literal index is partial. Shorthand, ranges and broken lines have not been expanded or repaired.

Historical relationship wording

(b) Affected ADs

    None.

This wording records what this edition said at publication. It does not determine current supersession or current independent burden.

Recorded rule paragraphs

These exact source paragraphs include conditions and maintenance wording. They are not a conclusion that work applies to, or was completed on, an individual aircraft. Referenced manufacturer service documents are link-only and are not mirrored.

(a) Effective Date

(a) Effective Date

    This airworthiness directive (AD) is effective December 8, 2025.

(b) Affected ADs

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Rolls-Royce Deutschland Ltd & Co KG (RRD) 
Model Trent 1000-A, Trent 1000-AE, Trent 1000-C, Trent 1000-CE, 
Trent 1000-D, Trent 1000-E, Trent 1000-G, Trent 1000-H, Trent 1000-
A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, 
Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 
1000-K2, and Trent 1000-L2 engines.

(d) Subject

(d) Subject

    Joint Aircraft System Component (JASC) Code 7230, Turbine Engine 
Compressor Section.

(e) Unsafe Condition

(e) Unsafe Condition

    This AD was prompted by an investigation which revealed that 
certain low-pressure compressor (LPC) fan blades are at risk of 
cracking due to incorrect dressing. The FAA is issuing this AD to 
detect and correct cracking of the LPC fan blades. The unsafe 
condition, if not addressed, could result in fan blade failure and 
release of uncontained high-energy debris with consequent engine in-
flight shut-down, which could result in damage to, and reduced 
control of, the airplane.

(f) Compliance

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

(g) Required Actions

    Except as specified in paragraph (h) of this AD: Perform all 
required actions within the compliance times specified in, and in 
accordance with, European Union Aviation Safety Agency (EASA) AD 
2025-0143, dated July 08, 2025 (EASA AD 2025-0143).

(h) Exceptions to EASA AD 2025-0143

(h) Exceptions to EASA AD 2025-0143

    (1) Where EASA AD 2025-0143 refers to its effective date, this 
AD requires using the effective date of this AD.
    (2) Where EASA AD 2025-0143 refers to November 3, 2023 (the 
effective date of EASA AD 2023-0185), this AD requires using the 
effective date of this AD.
    (3) This AD does not adopt the ``Remarks'' paragraph of EASA AD 
2025-0143.

(i) No Reporting Requirement

(i) No Reporting Requirement

    Although the material referenced in EASA AD 2025-0143 specifies 
to submit certain information to the manufacturer, this AD does not 
include that requirement.

(j) Alternative Methods of Compliance (AMOCs)

(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, AIR-520 Continued Operational 
Safety Branch, send it to the attention of the person identified in 
paragraph (k) of this AD and email 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.

(k) Additional Information

(k) Additional Information

    For more information about this AD, contact Alexis Whitaker, 
Aviation Safety Engineer, FAA, 2200 South 216th Street, Des Moines, 
WA 98198; phone: (516) 228-7309; email: [email protected].

(l) Material Incorporated by Reference

(l) 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) European Union Aviation Safety Agency (EASA) 2025-0143, 
dated July 08, 2025.
    (ii) [Reserved]
    (3) For EASA material identified in this AD, contact EASA, 
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 
000; email: [email protected]; website: easa.europa.eu. You may 
find this EASA AD on the EASA website at ad.easa.europa.eu.
    (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 [email protected].