[Correction] Engine — Life-Limited Critical Parts — Service Life Calculation / 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 must recalculate the consumed and remaining service life of affected life-limited parts within 250 flight cycles or 12 months after 1 January 2019, and thereafter at specified intervals or after engine removals. Replacement of parts must occur before exceeding recalculated life limits or within 90 days after the effective date, whichever is later. Installation of engines on pre-mod aeroplanes requires prior operational history review and recalculation of part life as specified.
Summary
EASA Airworthiness Directive 2018-0268 is a corrective directive addressing life-limited critical parts on Rolls-Royce Deutschland BR700-710A2-20 engines, commonly installed on Bombardier BD-700-1A10 and BD-700-1A11 aircraft. The directive mandates recalculation and replacement of certain engine life-limited parts to ensure continued airworthiness. It applies to all serial numbers of these engines and focuses on parts such as compressor discs, fan blades, and turbine discs.
What changed
This correction republished the original AD to fix typographical errors in the definition of post-mod aeroplanes. The directive introduces requirements for repetitive recalculation of consumed and remaining service life of affected life-limited parts and mandates their replacement before exceeding recalculated life limits. It also clarifies installation rules for engines on pre-mod and post-mod aeroplanes.
Why it matters
This AD is critical for aviation professionals because it addresses a safety risk caused by engine rotor speed oscillations that can reduce the service life of key engine components. Operators and maintenance organizations must ensure compliance to prevent potential engine part failures that could lead to high-energy debris release and compromised aircraft control. Accurate life tracking and timely replacement of affected parts are essential to maintain safe operations and regulatory compliance.
More for Rolls-Royce Deutschland Ltd & Co Kg BR700-710
All 8- EASA AD 2024-0136Time Limits / Maintenance Checks — Time Limits Manual / Maintenance Programme — AmendmentJul 11, 2024
- EASA AD 2022-0110R1Engine — Low Pressure Compressor Rotor (Fan) Disc — InspectionNov 22, 2023
- EASA SIB 2022-04High Pressure Compressor Abradable Liner LossMay 25, 2022
- EASA AD 2022-0033Time Limits / Maintenance Checks — Time Limits Manual / Maintenance Programme — AmendmentMar 3, 2022
- EASA AD 2017-0198-CN
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