Beech Model 58 Baron Burned Circuit Breaker Switch The pilot reported a burning smell in the cabin. Inspection revealed the taxi light circuit breaker switch had burned internal components. This switch (p/n 35-380132-105) is the improved model required by AD 2008-13-07. Unfortunately, when these 288
Burned And Separated
The pilot reported a burning smell in the cabin. Inspection revealed the taxi light circuit breaker switch had burned internal components. This switch (p/n 35-380132-105) is the improved model required by AD 2008-13-07. Unfortunately, when these switches overheat, it can be impossible to determine if the insulators had been installed improperly, or installed at all. This was the second post-AD switch failure in this fleet.
Key Takeaways:
- Critical component failures affected various aircraft, including a taxi light circuit breaker in a Beech Baron, a landing gear strut in a Piper PA-28, and a cylinder head in a Cessna 414.
- Maintenance deficiencies were noted, such as an improperly installed gasket on a low-time factory-remanufactured engine and widespread loose pilot seat lock screws in a Cessna 172S fleet.
- One incident highlighted a design issue where a critical landing gear defect was obscured by a fairing, preventing preflight detection.
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