Cessna 207A Skywagon/Stationair
Tripped Audio Panel Breaker
Pilot reported audio circuit breaker popped; smoke observed. Maintenance inspected audio panel electrical system. No defects noted; replaced audio panel, ops check good.
Bad Circuit Breakers
The following is derived from maintenance facility submissions to the FAA’s Service Difficulty Reports database.
Key Takeaways:
- Multiple aircraft experienced electrical malfunctions, primarily involving popped or failed circuit breakers, often accompanied by smoke or burning odors.
- These incidents affected various systems, including audio panels, main avionics buses, anti-collision lights, strobe lights, and EFIS displays.
- Root causes identified included faulty circuit breakers, damaged switches, burned wire insulation, and wiring chafing to ground, frequently requiring component replacement and repairs.
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