Engine – Intermediate Pressure Compressor Shaft Assembly / Front Air Seal – Inspection
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Trent 1000 and Trent 7000 engines must perform visual inspections of the IPC shaft assembly front air seal within specified engine flight cycle intervals, depending on engine group and part history. If cracks are found, the engine must be removed from service before the next flight and repaired per Rolls-Royce instructions. Optional modification with redesigned IPC shaft assemblies is available as terminating action for repetitive inspections.
Summary
EASA Airworthiness Directive 2026-0143R1 is a regulatory update addressing inspection requirements for the intermediate pressure compressor (IPC) shaft assembly front air seal on Rolls-Royce Trent 1000 and Trent 7000 engines. These engines are commonly installed on Boeing 787 and Airbus A330 aircraft. The directive mandates repetitive inspections and potential corrective actions to prevent failures related to cracked front air seals on specific IPC shaft assembly part numbers LV18447 and LV19601.
What changed
This revision recognizes that modifications performed according to any issue of Rolls-Royce Service Bulletins TRENT 1000 72-L198 or 72-L200 provide an equivalent level of safety, including original and later revisions. It expands applicability to additional engine models (Group 2) and retains previous inspection and corrective action requirements while clarifying acceptable modification standards.
Why it matters
The directive addresses a critical safety concern involving potential cracking of the IPC shaft assembly front air seal, which could lead to engine failure or in-flight shutdown. Compliance ensures continued airworthiness and prevents possible engine damage or debris release that could compromise flight safety. Operators and maintenance organizations must adhere to inspection intervals and corrective actions to maintain regulatory compliance and operational safety.
More for Rolls-Royce Deutschland Ltd & Co Kg TRENT 1000
All 62- EASA PAD 26-136Time Limits / Maintenance Checks – Time Limits Manual / Maintenance Programme – AmendmentNov 11, 2026
- EASA AD 2026-0203[Correction] Engine – High Pressure Turbine Blades – InspectionNov 5, 2026
- 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 – Inspection
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