Engine – Fuel Pump – Replacement / De-Pairing Limitation
Superseded. Comply with 2022-0225, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must replace affected fuel pumps on one or both engines within 30 days after 2021-11-17, the effective date of the AD, following the instructions in the Rolls-Royce Alert NMSB RB211/TRENT 73-AK788. From the effective date, installation of engines or parts with affected fuel pumps is prohibited. Stakeholders should consult Rolls-Royce representatives or their Care account for technical guidance.
Summary
EASA Airworthiness Directive 2021-0245 is an airworthiness directive addressing Rolls-Royce RB211 Trent 800 series engines installed on Boeing 777 aircraft. It mandates replacement and de-pairing of certain fuel pumps affected by corrosion due to water contamination, which can cause loss of thrust control. The directive aims to ensure continued safe operation of affected engines by prohibiting installation of affected parts and engines.
What changed
EASA Airworthiness Directive 2021-0245 introduces mandatory replacement of affected fuel pumps within 30 days of the effective date and prohibits installation of engines or parts containing affected fuel pumps. It requires operators to follow Rolls-Royce Alert Non-Modification Service Bulletin RB211/TRENT 73-AK788 for compliance. This AD is an interim measure pending further regulatory action.
Why it matters
This directive is critical for aviation professionals because it addresses a safety risk of engine thrust loss due to fuel pump corrosion, which can lead to engine shutdown or dual engine thrust control loss. Operators and maintenance organizations must comply to avoid unsafe conditions and regulatory penalties. Compliance ensures continued airworthiness and operational safety of Boeing 777 aircraft equipped with RB211 Trent 800 engines.
More for Rolls-Royce Deutschland Ltd & Co Kg RB211 TRENT 800
All 10- EASA AD 2026-0190Engine Oil – Oil Pump – Operational ProhibitionOct 1, 2026
- EASA AD 2026-0173-EEngine Oil – Oil Pump – De-PairingSep 4, 2026
- EASA AD 2025-0072Time Limits / Maintenance Checks — Engine Time Limits Manual — AmendmentMar 31, 2025
- EASA AD 2014-0152R2Engine — Intermediate Pressure Compressor Rotor Shaft and Balance Weights — Inspection / ModificationNov 23, 2023
- EASA AD 2023-0040Engine — Intermediate Pressure Compressor Rotor Shaft — Inspection
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