A simple trick from a hangar in Wichita saved me hours on a nav system check

I was working on a King Air's KNS 660 system at a shop in Wichita, and the alignment was giving me a real headache. An older tech saw me struggling and told me to just cycle the avionics master off and on three times before starting the full procedure. It sounded too easy, but it cleared the fault and saved me at least two hours of digging. Has anyone else found a weird reset trick that actually works on old units like that?

3 comments

3 Comments

mark_mitchell1mo ago

Come on, that's just covering up the real problem. You didn't fix the alignment fault, you just tricked the box into a fresh start. That glitch is still in there somewhere, waiting to pop up again when you're in actual IMC. Real troubleshooting means finding the root cause, not just hitting the reset button until it behaves. Those old units need proper care, not voodoo.

rileyb611mo ago

The 1998 avionics manual literally says a cold reboot clears transient memory faults. Honestly Mark, you're acting like every glitch is a deep hardware flaw when half the time it's just a stuck bit. Real IMC won't magically summon a gremlin you reset properly.

susanm5621d ago

But what if the stuck bit happens again during a critical phase? A reset feels like putting a band-aid on a deeper system quirk.