Superseded. This AD was superseded by AD 2025-05-04. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2019-05-02
Effective 03/27/2019 · Published 03/12/2019
Airworthiness Directives; Rolls-Royce plc Turbofan Engines
Summary
We are superseding airworthiness directive (AD) 2017-22-13 for certain Rolls-Royce plc (RR) RB211-Trent 900 turbofan engine models. AD 2017-22-13 required an inspection of the drains mast and the replacement or repair of the drains mast if a crack is found. This AD retains this requirement, but adds repetitive inspections and expands the population of affected RR RB211-Trent 900 turbofan engine models. This AD was p…