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.
Various electrical switches failed across multiple aircraft models, affecting navigation lights, landing lights, landing gear indications, and flap operation.
Several landing and navigation light switches failed due to overheating, burning, or internal shorts, with some incidents leading to smoke in the cockpit.
Many of these switch failures occurred despite parts being "new and improved" or installed under Airworthiness Directives (ADs), often significantly below their rated operational lifecycles.
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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