CANCELLED: Engine — High Pressure Turbine Disc Front Cover Plate — Replacement [Life Limitation]
- Published
- Effective
- Deadline
- Replaces
- 2018-0164R1
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators and maintenance organizations should update their maintenance programs to reflect the reinstated original life limit of 1,500 flight cycles for the high pressure turbine disc front cover plate, Part Number KH59279. Parts previously removed under the old AD may be eligible for return to service without further action except for existing critical inspections as per the Rolls-Royce Trent 1000 Time Limits Manual. No new compliance actions or deadlines are required under this cancellation notice.
Summary
EASA Airworthiness Directive 2018-0164-CN is a cancellation notice for the previous AD 2018-0164R1 concerning the replacement and life limitation of the high pressure turbine disc front cover plate, Part Number KH59279, on Rolls-Royce Trent 1000 engines. These engines are installed on Boeing 787 aircraft among others. The cancellation reflects updated analysis restoring the original safe life limits for the affected parts.
What changed
EASA Airworthiness Directive 2018-0164-CN cancels the earlier AD 2018-0164R1 and its correction, removing the previously reduced declared safe cyclic life for the high pressure turbine disc front cover plate. The original life limit of 1,500 flight cycles has been reinstated based on further analysis and approval. Consequently, the related Rolls-Royce Non-Modification Service Bulletin 72-AK057 has also been cancelled.
Why it matters
This cancellation matters because it removes the previously imposed life restrictions on a critical engine component, allowing operators to return affected parts to service without additional life limitations beyond the original specifications. It reduces maintenance burden and potential part replacements, impacting maintenance planning and cost for operators and MRO providers. Compliance teams must update their records to reflect the restored life limits to ensure regulatory adherence.
More for Rolls-Royce Deutschland Ltd & Co Kg TRENT 1000
All 59- EASA PAD 26-114Engine – High Pressure Turbine Blades – InspectionSep 24, 2026
- EASA AD 2026-0117R1Engine – Low Pressure Turbine Discs – InspectionAug 12, 2026
- EASA AD 2026-0143Engine – Intermediate Pressure Compressor Shaft Assembly / Front Air Seal – InspectionJul 20, 2026
- EASA AD 2026-0117Engine – Low Pressure Turbine Discs – InspectionJun 19, 2026
- EASA AD 2025-0206R1Engine — High Pressure Turbine Blades — InspectionDec 18, 2025
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