The navigation light circuit breaker switch trips and will not reset. Fault in circuit breaker switch (p/n 35-380132-101). These switches are the new and improved versions installed under AD 2008-13-17, but are continuing to fail internally.
Multiple aircraft models are experiencing widespread failures of various electrical switches, including navigation, landing, landing gear, and flap control switches.
Landing and navigation light switches are prematurely failing due to internal shorts, overheating, burning, and emitting smoke, often in "improved" versions installed under Airworthiness Directives (ADs).
Some landing/taxi light switches are not designed for continuous in-flight use, contributing to overheating and failure, while other critical switches are failing due to unserviceability or misadjustment.
Beechcraft Model F33A Bonanza Nav Light Switch Internal Short
The navigation light circuit breaker switch trips and will not reset. Fault in circuit breaker switch (p/n 35-380132-101). These switches are the new and improved versions installed under AD 2008-13-17, but are continuing to fail internally.
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