Pro tip: I was torquing bleed valves on a 737's brakes the wrong way for years.

A new guy at the hangar in Phoenix watched me do it and said, "You know the manual says to go the other way, right?" I checked the AMM and he was right, I had been adding stress to the fitting. How many other little things like that do we pick up wrong and never get corrected?

3 comments

3 Comments

andrew9161mo ago

Yeah, that's why I always double-check the manual now. Got burned once on a simple torque spec and felt like an idiot. Saves a lot of trouble in the long run.

beth_baker691mo ago

Holy cow, that's a scary one! I mean, a brake bleed valve? That's not some random access panel bolt. It really makes you wonder what else you're doing backwards. I once saw a guy install a cabin air filter upside down for months because that's how he was shown. The manual had one little arrow everyone missed.

rivera.henry14d ago

Cabin air filters actually have airflow arrows for a reason, but they still work either way. Brake bleed valves are a whole different level of wrong though.