Engine – High Pressure Turbine Blades – Inspection / Limitation
Superseded. Comply with 2025-0206R1, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2019-0099R2
- Replaces
- 2024-0118
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform on-wing borescope inspections of affected HPT blades within specified flight cycle thresholds, not exceeding 50 flight cycles between inspections. Any detected cracks require engine removal and blade replacement using approved Rolls-Royce service bulletins. Engines accumulating 1,000 or more flight cycles since first flight or last HPT blade replacement must not be operated until corrective actions are completed.
Summary
EASA Airworthiness Directive 2024-0118R1 addresses safety concerns for Rolls-Royce Deutschland Ltd & Co KG Trent 1000 series engines installed on Boeing 787 aircraft. The directive mandates inspections of high pressure turbine (HPT) blades, specifically part numbers KH10575 and KH64485, to detect cracking that could lead to engine failure. It updates inspection thresholds and methods to ensure continued airworthiness of affected engines.
What changed
This revision of EASA AD 2024-0118 includes reference to Rolls-Royce Service Bulletin TRENT 1000 72-L042 as an additional acceptable method for installing HPT blades with part number KH64485. It also reduces inspection thresholds and expands inspection areas to include the convex surface of the HPT blades. The directive retains previous inspection and removal requirements while clarifying compliance methods.
Why it matters
This directive is critical for aviation professionals to prevent potential engine in-flight shutdowns caused by undetected cracks in HPT blades. Operators and maintenance organizations must adhere to the updated inspection intervals and replacement procedures to maintain engine reliability and aircraft safety. Compliance ensures regulatory adherence and reduces the risk of operational disruptions.
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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New ADs and bulletins for Rolls-Royce Deutschland Ltd & Co Kg TRENT 1000 and Boeing 787, summarized like this page, every Monday.