Alternators

The alternator cooling fan came apart after takeoff, and parts punched a hole in the induction air box downstream of the air filter. Also, the alternator belt became loose in the engine compartment. Loss of power from engine FOD damage resulted in an uneventful landing back to the airport. The cooling fan had fractured at one of the fins spot welds.

Key Takeaways:

• Multiple aircraft models experienced diverse alternator failures, ranging from mechanical issues like cooling fan disintegration and loose drive belts to electrical problems such as brush holder departure and internal shorts.
• These failures led to various consequences, including engine foreign object damage (FOD), smoke in the cockpit, complete electrical system failure requiring emergency procedures, and premature component failures, even on new or recently installed parts.

Key takeaways sponsored by Aviator Pro | Start Your Training ->

See a mistake? Contact us.