Have you ever been a passenger on a plane and fixed anything on board? I flew from PHX-MSP on a NW A320 tonight. In the lav, I fixed two things that were broken. One, the toilet paper "pin" (or whatever it's called - axle?) was detached and the toilet paper roll was sitting on the counter. I put the roll back on and fixed the setup so it was like normal. Also in the lav, the hydraulic thing on the door was detached from the bracket on the wall. It was a small hydraulic thing, so it was easy for me to just push it and hook it back up to the bracket on the wall. This made the door close automatically like most hinged lav doors do - before this one would just open and close randomly depending on flight dynamics. And I was just a passenger with no other ties to NW.
Have you ever done any DIY repairs on a plane? (No flight crew/cabin crew or airline mechanics please - i.e. nobody that normally would fix something)