Engine – Low Pressure Compressor Blades – Inspection / Replacement
Superseded. Comply with 2023-0201, which replaces this document.
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must inspect all affected low pressure compressor blades on Group 1 engines before exceeding the compliance date specified in the Rolls-Royce NMSB or within 30 days after 3 November 2023, whichever is later. If any blade fails inspection, it must be replaced with a serviceable part within the same timeframe. From the effective date, only serviceable affected parts may be installed on any engine. Previous inspections and replacements done per the original NMSB issue before the effective date are acceptable for compliance.
Summary
EASA Airworthiness Directive 2023-0185 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 addresses the inspection and potential replacement of low pressure compressor blades with specific part and serial numbers due to risk of cracking. The directive applies to multiple Trent 1000 engine variants including Trent 1000-A, -AE, -C, -CE, -D, -E, -G, -H, and their respective '2' and later series models.
What changed
EASA AD 2023-0185 introduces a one-time mandatory inspection of affected low pressure compressor blades identified by Rolls-Royce Alert Non-Modification Service Bulletin TRENT 1000 72-AK965 Revision 1. It expands the list of affected parts and engine models, sets inspection compliance dates, and regulates the installation of only serviceable parts. This directive is a new regulation addressing a newly identified unsafe condition rather than an amendment to a previous AD.
Why it matters
This directive is critical for aviation professionals because it mitigates the risk of uncontained engine failure caused by cracked compressor blades, which could lead to engine shutdown and potential damage to the aircraft. Operators and maintenance organizations must ensure compliance to maintain aircraft airworthiness and safety. Non-compliance could result in regulatory penalties and increased safety risks during flight operations.
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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