Found out my torque wrench was 15 pounds off during a calibration check

I was doing a routine avionics rack swap on a King Air last Friday and decided to check my torque wrench against the shop standard. Turns out it was reading 15 in-lbs low, which means I've been under-torquing connector backshells for months. How often do you guys send your torque wrenches out for calibration?

2 comments

2 Comments

felix8245d ago

Fifteen in-lbs low?? That's wild, @keithbennett I'd be sweating bullets thinking about every connector I touched with that thing. You keeping that log is smart though, I'd definitely be digging through my job sheets to see what got hit.

keithbennett6d ago

Fifteen in-lbs is a pretty big swing, how do you even trust the wrench after that? Were you torquing anything critical like prop bolts or just panel screws? I send mine out every 6 months like clockwork, but I've heard of guys going a year or more and never checking in between. Did you keep a log of what jobs that wrench was used on so you can go back and fix things or are you just gonna let it slide?