Engine — Low Pressure Turbine Discs — Inspection
Superseded. Comply with 2026-0117, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2020-0195
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Boeing 787 aircraft with Rolls-Royce Trent 1000 engines must perform ultra-high sensitivity fluorescent penetrant inspections of the low pressure turbine Stage 3 and Stage 4 discs during each qualified shop visit starting from 22 September 2020. If cracks are detected, affected parts must be replaced or repaired using the approved Rolls-Royce repair instruction before engine release to service. Newly installed affected parts must also undergo inspection as specified.
Summary
EASA Airworthiness Directive 2020-0195R1 is an updated regulatory requirement addressing inspection and repair of low pressure turbine discs in Rolls-Royce Trent 1000 engines installed on Boeing 787 aircraft. The directive mandates repetitive inspections of specific turbine disc parts for cracks and introduces approved repair instructions as an alternative to part replacement. This directive ensures continued airworthiness and safety of affected engines by preventing potential turbine disc failures.
What changed
EASA Airworthiness Directive 2020-0195R1 revises the original AD 2020-0195 by incorporating Rolls-Royce's approved repair instruction FRSH 970 as an alternative to replacing the affected low pressure turbine Stage 3 disc part number KH36323. The revision also references the updated Rolls-Royce Alert Non-Modification Service Bulletin 72-AK416 Revision 1, providing updated inspection and repair guidance.
Why it matters
This directive is critical for aviation professionals as it addresses a safety risk related to cracks in low pressure turbine discs that could lead to engine failure and damage to the aircraft. Operators and maintenance organizations must comply with the inspection and repair requirements to ensure engine reliability and regulatory compliance. The inclusion of an approved repair method offers a cost-effective alternative to part replacement, impacting maintenance planning and resource allocation.
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.