Engine — Low Pressure Turbine Blades — Replacement
- Published
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- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Rolls-Royce RB211 Trent 970-84, 972-84, and 972E-84 engines must replace all affected low pressure turbine blades during the next qualified shop visit or by 1 January 2023, whichever is earlier. Installation of affected modules is permitted only if the engine is subsequently corrected as required. Compliance with Rolls-Royce Alert NMSB RB.211-72-AJ933 instructions is mandatory.
Summary
EASA Airworthiness Directive 2018-0121 is an official directive addressing the replacement of low pressure turbine blades on Rolls-Royce RB211 Trent 970-84, 972-84, and 972E-84 engines, commonly installed on Airbus A380 aircraft. The directive mandates inspection and replacement of affected turbine blades that were subject to cleaning with OMat 198 during overhaul. This AD aims to prevent engine failures caused by internal corrosion leading to uncommanded in-flight engine shutdowns.
What changed
EASA Airworthiness Directive 2018-0121 introduces mandatory replacement of low pressure turbine blades on affected Trent 900 engines identified as having corrosion risks from cleaning contaminants. It requires affected engines to undergo a qualified shop visit for blade replacement by 1 January 2023 or during the next shop visit, whichever occurs first. The AD also allows installation of affected modules only if corrective actions are completed afterward.
Why it matters
This directive is critical for aviation professionals as it addresses a safety risk that could cause uncommanded engine shutdowns and reduced aircraft control. Operators and maintenance organizations must ensure compliance to maintain airworthiness and avoid operational disruptions. The AD provides clear instructions to prevent recurrence of corrosion-related blade failures, supporting continued safe operation of Airbus A380 aircraft powered by Trent 900 engines.
More for Rolls-Royce Deutschland Ltd & Co Kg RB211 TRENT 900
All 29- EASA AD 2016-0193R2Engine – Low Pressure Turbine Exhaust Case and Support Assembly (Tail Bearing Housing) – Inspection / ReplacementAug 13, 2026
- EASA AD 2026-0164Time Limits / Maintenance Checks – Engine Time Limits Manual – AmendmentAug 13, 2026
- EASA PAD 26-084Time Limits / Maintenance Checks – Engine Time Limits Manual – AmendmentJul 13, 2026
- EASA AD 2025-0190[Correction] Engine — Low Pressure Turbine Seal Panel — Modification / InspectionSep 4, 2025
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