EASA AD 2023-0115
SUPERSEDED BY EASA AD 2023-0195
Summary
EASA Airworthiness Directive 2023-0115 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Rolls-Royce Deutschland Ltd & Co KG Trent 1000 series engines, including models AE3, CE3, D3, G3, H3, J3, K3, L3, M3, N3, P3, Q3, and R3. This directive mandates compliance with updated maintenance tasks and life limits as specified in the Rolls-Royce Trent 1000 Time Limits Manual Revision 26 dated 01 May 2023. It ensures continued airworthiness by requiring operators to follow the latest maintenance and inspection requirements for these engines.
What Changed
EASA AD 2023-0115 supersedes the previous AD 2022-0247 and introduces new and more restrictive maintenance tasks and life limits for Trent 1000 engines. Changes include adding new tracked parts such as the post-72-J709 low pressure turbine nozzle guide vane, implementing flight profile monitoring, updating safe cyclic life and inspection intervals for certain high-pressure compressor discs and shafts, and mandating inspections of specific air pipes. These updates are reflected in the latest revision of the Rolls-Royce Trent 1000 Time Limits Manual.
Why It Matters
This directive is critical for aviation professionals because it mandates adherence to updated maintenance and inspection requirements that directly impact engine safety and reliability. Operators and maintenance organizations must incorporate these changes to prevent unsafe conditions that could arise from exceeding life limits or missing critical inspections. Compliance ensures regulatory conformity and supports the continued airworthiness of aircraft powered by Trent 1000 engines.
What To Do
Operators and maintenance teams must revise their approved Aircraft Maintenance Programmes within 12 months of the effective date to incorporate the updated tasks, thresholds, and intervals specified in the Rolls-Royce Trent 1000 Time Limits Manual Revision 26. They must replace components before exceeding life limits, perform all applicable maintenance tasks within specified intervals, ensure correct use of Direct Accumulation Counting data, and conduct flight profile monitoring as required. Any discrepancies found during maintenance must be corrected according to Rolls-Royce instructions before further flight.
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