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I was checking a nav system on a Gulfstream for three days straight...
Kept getting a weird drift in the heading indicator that would clear after a power cycle. My lead, a guy named Carl who's been at the Miami hangar since the 90s, just watched me for a bit. He finally said, 'You're checking the flux valve, but did you look at the wiring bundle running past the coffee maker in the galley?' Sure enough, a chafed wire there was feeding noise into the whole system. I'd been so focused on the box itself I missed the simple stuff. Anyone else get tunnel vision on a component and miss the obvious?
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troy_ross2mo ago
Yeah, Carl's right. Always chase the wiring first, saved me hours on a King Air last month.
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taylor.phoenix2mo ago
Found a chafed wire bundle on a 172 that took forever to trace.
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mila_craig41mo ago
Electrical gremlins are usually just a distraction from bad grounds.
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