Switched my view on old school wiring checks after a fleet audit
I always trusted my eyes and hands to find faults in aircraft wiring. Then an audit showed me how thermal imaging caught problems I missed completely. Now I use it for every inspection.
My buddy who works on helicopters had the same wake-up call. He was sure a wiring bundle was fine after a visual check, but a borrowed thermal camera showed one connector running way hotter than the others. Turned out to be a tiny bit of corrosion you couldn't even see. He swears by that thing now for checking any critical harness. Makes you wonder what else we're missing, right?
My old shop teacher used to say if it looks fine and feels fine, it probably is. Then I spent a whole afternoon chasing a misfire that turned out to be a cracked coil pack you could only see with a mirror. I felt like a total genius that day. Makes me want to rent one of those cameras just to see what my own truck is hiding from me.