My lead tech told me to ignore the intermittent fault code on a G1000 system

He said it was just a sensor glitch that would clear itself after a power cycle. I listened and signed off the plane, but the same code popped up during a flight test two days later. It turned out to be a failing LRU in the air data module, which we had to replace for about $8,000. Now I triple-check every fault, even the ones that seem small. Anyone else get burned by trusting a quick fix on a complex system?

3 comments

3 Comments

mia_lee2mo ago

That's a tough lesson to learn, but it's the right one. Those intermittent codes are trying to tell you something, even if it's a pain to track down. Now you've got a personal rule that'll save you a bigger headache later.

the_derek2mo ago

Yeah, my buddy ignored a P0420 that only popped up on cold mornings. Two months later his cat was totally shot and the repair bill tripled. I mean, the car was basically screaming for help and he just turned up the radio.

richard_wells591mo ago

I had a buddy with a Ford Taurus back in 2015 who just kept clearing a misfire code every week. Then one day the check engine light just stayed on solid and the car started shaking real bad. Cost him like 800 bucks for a new coil pack and plugs when it'd been like a 50 dollar fix if he'd caught it sooner.