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TIL the hard way that torqueing to spec beats guessing by feel on a King Air bleed valve
Last Tuesday I was doing a bleed air valve swap on a King Air 200 at our hangar in Wichita and it came down to two choices: trust my wrist like I have for 12 years, or actually pull out the torque wrench and look up the number in the manual. I went with the wrench for once and the spec was 55 inch pounds, way lighter than what I would have cranked it to by feel. Turns out the last guy who touched that valve had it at probably 90 and the flange was already starting to warp, which I would have never caught otherwise. It took me 20 extra minutes to dig out the manual and set the wrench but the leak check passed clean on the first run. Now I am second guessing every time I have skipped that step on other jobs. Anybody here got a story where the book number saved your tail, or am I just lucky it worked out this time?
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