Aircraft Engine Starters

Monday, May 16, 2016 at 12:00 AM ET

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The Garmin Avionics Modernization Package includes the Garmin G600 TXi EFIS and GFC 600 autopilot. Columbia Avionics & Aircraft Services

Key Takeaways:

Aircraft starters frequently fail, often after limited operating hours or starts, leading to immediate operational issues.
Starter failures commonly involve severe electrical faults, such as internal arcing, short circuits, burning odors, or smoke.
These electrical malfunctions can pose significant hazards, including fire risks, damage to other aircraft components like batteries and wiring, and the inability to disconnect power.

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Lancair LC-40-550FG
Shorted Starter

Installed a rebuilt starter adapter and overhauled starter. On starting, the prop turned about 10 degrees and stopped. Pilot then smelled a burning odor and could not shut off the battery. The cowling was removed but the battery box was too hot to touch. Using gloves, the battery was disconnected. The starter (p/n 6462382) had a short in its field coils. There is no protection between the starter and battery so the starter & battery solenoid/relay stuck closed, the battery could not be shut off with the battery switch. Overhauled starter failed after 44 starts. Very dangerous due to a fire hazard.