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Never Assume Anything During Maintenance

 
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GalinHdz



Joined: 08 Nov 2017
Posts: 156

PostPosted: Thu Jan 15, 2026 1:18 pm    Post subject: Never Assume Anything During Maintenance Reply with quote

I was putting all the cowls back on my airplane after finishing the annual condition inspection and accidentally dropped a screw into the bottom cowl of the engine compartment. The washer fell on the floor and was easily found but I couldn't find the screw. After looking all over and even running a magnet into the cowl it seemed that the screw had rolled somewhere on the3 floor near the washer but where I couldn't see it. Even though I was sure it was somewhere on the floor I decided to take the bottom cowl off, not easy to do with a 3 bladed prop, and confirm it wasn't still in the engine compartment.

After a few minutes of searching I found the screw jammed in the alternator firmly against the alternator belt. You can see it in the attached photo. I don't even want to imagine what would have happened if I had started the engine with the screw there.
Morale of the story, make sure you account for all parts and tools after any maintenance on your airplane before flying!


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