AD 2024-08-06

(a) Effective Date

    This airworthiness directive (AD) is effective June 10, 2024.

(b) Affected ADs

    None.

(c) Applicability

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

(d) Subject

    Joint Aircraft System Component (JASC) Code 7300, Engine Fuel 
and Control.

(e) Unsafe Condition

    This AD was prompted by reports of wear in the combining spill 
valve (CSV) assembly of certain hydro-mechanical units (HMUs). The 
FAA is issuing this AD to prevent thrust reduction. The unsafe 
condition, if not addressed, could result in 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) of this AD: Perform all 
required actions within the compliance times specified in, and in 
accordance with, European Union Aviation Safety Agency (EASA) AD 
2023-0113, dated June 1, 2023 (EASA AD 2023-0113).

(h) Exceptions to EASA AD 2023-0113

    (1) Where EASA AD 2023-0113 refers to its effective date, this 
AD requires using the effective date of this AD.
    (2) Where Table 1 of EASA AD 2023-0113 specifies ``15 June 
2023'', replace that text with ``As of the effective date of this 
AD.''
    (3) Where Table 1 of EASA AD 2023-0113 specifies ``01 January 
2025'', replace that text with ``Within 4 months after the effective 
date of this AD or January 1, 2025, whichever occurs later.''
    (4) Where the service information referenced in EASA AD 2023-
0013 specifies to discard certain parts, this AD requires those 
parts to be removed from service.
    (5) This AD does not adopt the Remarks paragraph of EASA AD 
2023-0113.

(i) Definitions

    For the purposes of this AD, the ``implementation date'' is 
defined as the date that the applicable engine flight hour limit 
takes effect.

(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: [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 Sungmo Cho, Aviation 
Safety Engineer, FAA, 2200 South 216th Street, Des Moines, WA 98198; 
phone: (781) 238-7241; email: [email protected].

(l) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference 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) European Union Aviation Safety Agency (EASA) AD 2023-0113, 
dated June 1, 2023.
    (ii) [Reserved]
    (3) For EASA AD 2023-0113, 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 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 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/[email protected]">www.archives.gov/federal-register/cfr/[email protected].