Beech C90A King Air
Worn Fuel Cap
The crew noticed fuel leaking from the right hand outboard fuel cap. Aircraft returned and the fuel cap was replaced with a new one. The aircraft has since flown 4.9 hours with no defects noted.
Fuel Cap Failures
The following is derived from maintenance facility submissions to the FAA’s Service Difficulty Reports database.
Key Takeaways:
- Fuel caps can malfunction due to a variety of reasons, including wear and tear, deteriorated gaskets, manufacturing flaws, broken components, or improper securing of the cap or lanyard.
- These malfunctions frequently lead to fuel leaks, siphoning, and significant fuel loss, which can result in critical operational issues like engine performance degradation or in-flight engine failure.
- The reported incidents underscore the crucial importance of regular inspection, proper maintenance, and secure closure of fuel caps to ensure aviation safety.
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