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Hot take: that 'parts cannon' shotgunning cost me $600 and I still had the same fault light
Last Tuesday I was chasing a flap disagree on a King Air 200 down in Amarillo and I did the dumb thing. I swapped the limit switch, the actuator, then the position sensor, throwing parts at it like a rookie instead of pulling out the wiring diagram. $600 in parts and a whole shift gone, and the fault came back the second I cycled the flaps on the ground. Turned out a chafed wire behind the wing root was shorting to the spar, took me 15 minutes with a meter once I actually slowed down. My lead just looked at me and said 'you bought three parts to avoid reading one schematic.' That hit home because I've been doing this 11 years and I still fall into the trap of trusting my gut over the book. Now I write down the fault, the circuit, and the expected reading before I touch a single bolt. Any of you got a rule you force yourself to follow so you stop guessing?
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