[Correction] Engine — Exhaust Valve — Replacement
- Published
- Effective
- Deadline
- Replaces
- 2018-0265-E
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators with Group 1 engines containing affected exhaust valves must replace these valves within 10 flight hours or 3 months after 11 December 2018, whichever occurs first. Installation of affected exhaust valves on any engine is prohibited from the effective date. Maintenance teams should follow the instructions in the latest BRP Rotax Alert Service Bulletin revision 2 for valve replacement procedures.
Summary
EASA Airworthiness Directive 2018-0265R1 is a correction to the original directive addressing the replacement of affected exhaust valves on BRP-Rotax 914 and 915 series engines. This directive applies to Rotax 915 iSc3 A, 915 iSc3 B, and Rotax 914 F2, F3, and F4 engines installed on various light aircraft models. The directive mandates replacement of exhaust valves with specific part and lot numbers to prevent potential in-flight engine shutdowns.
What changed
This revision narrows the scope of affected exhaust valves to part number 854113 from specific production lot numbers 0317 or 0517, reducing the originally broader definition. It also corrects the document header to reflect that the directive is no longer classified as an Emergency AD. The updated Alert Service Bulletin revision 2 is incorporated for compliance.
Why it matters
This directive is critical for aviation professionals to ensure engine reliability and safety by preventing exhaust valve failures that could cause engine shutdowns during flight. Operators and maintenance organizations must comply to avoid forced landings and potential injuries. Compliance ensures continued airworthiness and adherence to European Union aviation safety regulations.
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