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Had a weird intermittent fault on a Garmin G1000 autopilot trim servo last Thursday
The plane kept logging a trim fault only during climb, but the bench test showed nothing wrong. I finally found a tiny crack in a wire bundle near the actuator mount after wiggling everything for an hour. What's the most annoying intermittent fault you've had to chase down lately?
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faithwalker1d ago
Oh man, a buddy of mine just spent three weekends on his old truck. It would randomly die at stop lights, then start right back up. No codes, nothing. He replaced the fuel pump, the relay, the whole deal. Turns out it was the wiring harness rubbing on the frame under the dash, just a single wire with the insulation worn through. The vibration from the engine at idle was enough to short it out. He said he almost sold the thing for parts.
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kim7271d ago
Chasing those ghosts is the worst. Honestly, I don't find wiring faults that annoying anymore, they at least make sense. The real head-scratchers are the ones where you fix it and it just... stays fixed, with no clear reason. Like a radio that would cut out only over water, or a door sensor that failed on Tuesdays. You replace a dozen parts, and then it just works, and you never know why. That lack of closure drives me up a wall.
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