Improperly Crimped Spark Plugs
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Hélicoptères Guimbal Cabri G2 helicopters equipped with the affected Lycoming O-360-J2A engine should inspect all W24EMR-C spark plugs following the procedures in Hélicoptères Guimbal Service Bulletin 16-022 A. Any spark plugs found improperly crimped should be replaced with new units. Additionally, new spark plugs should be checked before installation. No specific compliance deadline is stated.
Summary
EASA Safety Information Bulletin 2016-15 is an airworthiness bulletin addressing improperly crimped W24EMR-C spark plugs installed on Hélicoptères Guimbal Cabri G2 helicopters equipped with Lycoming O-360-J2A engines modified by EASA STC 10015311. The bulletin follows an in-flight engine fire linked to a spark plug failure and provides safety information and recommendations to operators. It highlights the need for inspection and possible replacement of these spark plugs to ensure continued safe operation.
What changed
EASA SIB 2016-15 introduces awareness of a safety concern related to improperly crimped W24EMR-C spark plugs that may cause engine fires. It references Hélicoptères Guimbal Service Bulletin 16-022 A, which provides inspection and replacement instructions for these spark plugs. The bulletin does not mandate an Airworthiness Directive but recommends proactive checks.
Why it matters
This bulletin is important for aviation professionals because improperly crimped spark plugs can lead to serious engine malfunctions, including in-flight fires. Operators and maintenance organizations must be vigilant in inspecting these spark plugs to prevent potential safety incidents. Compliance teams should note that while this is not a mandatory directive, following the recommendations helps maintain airworthiness and safety standards.
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