AD 2021-17-12

(a) Effective Date

    This airworthiness directive (AD) is effective October 13, 2021.

(b) Affected ADs

    This AD replaces AD 2020-13-07, Amendment 39-21152 (85 FR 38312, 
June 26, 2020).

(c) Applicability

    This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) 
(Type Certificate previously held by Rolls-Royce plc) 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-G, Trent 1000-G2, Trent 1000-H, Trent 1000-H2, Trent 
1000-J2, Trent 1000-K2, and Trent 1000-L2 model turbofan engines 
with a fuel pump, part number (P/N) G5030FPU01 or P/N TPS1000-05, 
installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7314, Engine Fuel 
Pump.

(e) Unsafe Condition

    This AD was prompted by the manufacturer's investigation into an 
unexpected reduction in fuel pump performance in certain high life 
fuel pumps and life-related wear-out of the internal components, 
which causes deterioration in fuel pump efficiency. The FAA is 
issuing this AD to prevent failure of the fuel pump, loss of engine 
thrust control and reduced control of the airplane. The unsafe 
condition, if not addressed, could result in failure of the fuel 
pump, loss of thrust control, and loss of the airplane.

(f) Compliance

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

 (g) Required Actions

    Within the compliance time specified in Planning Information, 
paragraph 1.D.2, of Rolls-Royce (RR) Alert Non-Modification Service 
Bulletin TRENT 1000 73-AK581, Revision 3, dated April 7, 2021 (the 
RR Alert NMSB), or within 30 days after the effective date of this 
AD, whichever occurs later, remove the fuel pump, P/N G5030FPU01 or 
P/N TPS1000-05, and replace it with a part eligible for 
installation.

 (h) Definition

    For the purpose of this AD, a ``part eligible for installation'' 
is a fuel pump with a P/N other than G5030FPU01 or TPS1000-05 or a 
fuel pump that has not exceeded the compliance time specified in 
Planning Information, paragraph 1.D.2, of the RR Alert NMSB.

 (i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO 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 
certification office, send it to the attention of the person 
identified in paragraph (j) of this AD. You may email your request 
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.

(j) Related Information

    (1) For more information about this AD, contact Kevin M. Clark, 
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: (781) 238-7088; fax: (781) 238-7199; 
email: [email protected].
    (2) Refer to European Union Aviation Safety Agency (EASA) AD 
2021-0006, dated January 7, 2021, for more information. You may 
examine the EASA AD in the AD docket at http://www.regulations.gov 
by searching for and locating Docket No. FAA-2021-0198.

(k) 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) Rolls-Royce (RR) Alert Non-Modification Service Bulletin 
TRENT 1000-73-AK581, Revision 3, dated April 7, 2021.
    (ii) [Reserved]
    (3) For RR service information identified in this AD, contact 
Rolls-Royce plc, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; 
phone: +44 (0)1332 242424; website: https://www.rolls-royce.com/contact-us.aspx.
    (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 (781) 238-7759.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html.