EASA AD 2019-0248
CANCELLED BY EASA AD 2020-0240
Summary
EASA Airworthiness Directive 2019-0248 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Rolls-Royce Trent 1000 series engines installed on Boeing 787 aircraft. It mandates repetitive inspections of the intermediate pressure compressor (IPC) Rotor 1 and Rotor 2 blades and shaft to detect cracks that could lead to blade release and potential loss of aircraft control. The directive applies to multiple Trent 1000 engine variants except those modified with Rolls-Royce mod 72-J941.
What Changed
EASA Airworthiness Directive 2019-0248 supersedes the previous AD 2018-0084R2 and retains its inspection requirements while adding new inspection triggers, including cabin depressurisation events and updated asymmetric power operation conditions. It consolidates inspection instructions from several Rolls-Royce Alert Non-Modification Service Bulletins and introduces the mod 72-J941 as terminating action for repetitive inspections. The directive also clarifies inspection intervals and compliance times for ETOPS and non-ETOPS operations.
Why It Matters
This directive is critical for aviation professionals as it ensures the continued airworthiness and safety of Boeing 787 aircraft powered by Trent 1000 engines by preventing in-flight blade failures. Operators and maintenance organizations must adhere to the inspection schedules to avoid potential engine damage and operational disruptions. Compliance with this AD helps maintain regulatory approval for ETOPS operations and reduces the risk of unscheduled engine removals or failures.
What To Do
Operators must perform initial and repetitive borescope inspections of affected IPC Rotor 1 and Rotor 2 blades and shaft according to the specified compliance times, including inspections triggered by alert engine health monitoring notifications and asymmetric power events. Engines modified with Rolls-Royce mod 72-J941 are excluded from repetitive inspections but must apply the modification service bulletin as terminating action. Inspections must be completed within the defined flight cycle or calendar day limits, with the effective date of this AD being 2019-10-23.
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