AD 2026-10-21

(a) Effective Date

    This airworthiness directive (AD) is effective July 9, 2026.

(b) Affected ADs

    This AD replaces AD 2023-26-04, Amendment 39-22647 (89 FR 251, 
January 3, 2024).

(c) Applicability

    This AD applies to all Rolls-Royce Deutschland Ltd & Co KG Model 
Trent 1000-AE3, Trent 1000-CE3, Trent 1000-D3, Trent 1000-G3, Trent 
1000-H3, Trent 1000-J3, Trent 1000-K3, Trent 1000-L3, Trent 1000-M3, 
Trent 1000-N3, Trent 1000-P3, Trent 1000-Q3, and Trent 1000-R3 
engines.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7500, Engine Bleed 
Air System.

(e) Unsafe Condition

    This AD was prompted by a determination that a new set of on-
wing initial and repetitive visual inspections of the intermediate-
pressure stage 8 (IP8) and high-pressure stage 3 (HP3) air transfer 
tubes for cracking, damage, or air leakage wear are necessary, and 
consequently the inspection interval for the repetitive in-shop 
visual inspections of the front bearing housing IP8 air feed tubes 
may be increased. The FAA is issuing this AD to prevent failure of 
the IP8 and HP3 air transfer tubes and front bearing housing IP8 air 
feed tubes. The unsafe condition, if not addressed, could affect the 
engine internal cooling and sealing flows, resulting in failure of 
the IP8 air transfer tubes, HP3 air transfer tubes, and front 
bearing housing IP8 air feed tubes, with consequent damage to the 
engine and reduced control of the airplane.

(f) Compliance

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

(g) Required Actions

    Except as specified in paragraph (h) and (i) of this AD: Perform 
all required actions within the compliance times specified in, and 
in accordance with, European Union Aviation Safety Agency (EASA) AD 
2025-0176, dated August 7, 2025 (EASA AD 2025-0176).

(h) Exceptions to EASA AD 2025-0176

    (1) Where EASA AD 2025-0176 refers to its effective date, this 
AD requires using the effective date of this AD.
    (2) This AD does not adopt the ``Remarks'' section of EASA AD 
2025-0176.

(i) No Reporting Requirement

    Although the service material referenced in EASA AD 2025-0176 
specifies to submit certain information to the manufacturer, this AD 
does not include that requirement.

(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

    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

    (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) AD 2025-0176, 
dated August 7, 2025.
    (ii) [Reserved]

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    (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 material 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].