Airworthiness directives › 2020-13-07
AD 2020-13-07 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
Applicability*9
This AD applies to all Rolls-Royce Deutschland Ltd. & Co KG (Type Certificate previously held by Rolls-Royce plc) Trent 1000-D2, Trent 1000-J2, and Trent 1000-K2 model turbofan engines with fuel pump, part number (P/N) G5030FPU01, installed.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Remove fuel pump, P/N G5030FPU01, and replace it with a part eligible for installation within the compliance times specified in paragraph (g)(1) or (2) of this AD, whichever occurs later: (1) Before exceeding 16,000 hours in service or 4,900 engines cycles in service since new, or since last overhaul; or (2) Within 30 days after the effective date of this AD.
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. Further troubleshooting of the fuel pump discovered life-related wear-out of the internal components, which causes deterioration in fuel pump efficiency. The FAA is issuing this AD to reduce the risk of reduced thrust during engine operation. The unsafe condition, if not addressed, could result in failure of the fuel pump, loss of thrust control, and loss of the airplane.
Affected ADs
None.
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