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Spent 45 minutes chasing a phantom APU fault on a 737 in Atlanta
Last week I was working a line maintenance shift at ATL and got called out for an APU that wouldn't start. Pulled the logs, saw a low oil pressure fault from the night before. After checking the oil level and cleaning the chip detector, turns out a loose connector on the pressure switch was the culprit the whole time. Anybody else ever waste half a shift on something that simple?
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lewis.charlie1mo ago
Used to roll my eyes at guys who spent hours on simple stuff like loose connectors. Figured real troubleshooting meant digging into schematics and chasing intermittent voltage drops. Then I spent three full days on a CRJ with a generator that would drop offline randomly. Replaced the GCU, the generator itself, all the wiring between them. Nothing. Ended up being a chafed wire inside a harness bundle that took maybe 10 minutes to fix once someone actually looked at the pins. Changed my whole outlook on starting with the basics first.
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