I didn't find these, but I hope I can never top these ones.
A co-worker was sent into the back of an Airbus 320 to investigate why the lav handle would not stow properly. Probably had someting to do with the duffel bags full of cocaine!!

. The funniest part of that tale is that Customs had released the aircraft about an hour previously. When the word got let out the customs officers literally raced each other to the plane! Something to do with getting credit for the find

. My poor friend was dragged in like he was the criminal! He was detained and questioned for hours! Ummmm..... Mr. officer sir. If he was trying to smuggle this stuff do you really think he would have called you guys?

. Duh!
On a different occasion the best friend of the first guy, doing a weekly check of the same aircraft, opened the main landing gear door to find a poor guy frozen rock solid around the keel beam!!! He'd apparently climbed on board in Cuba. The aircraft left Cuba three days previously and had been flying daily!!
It took the better part of the day to thaw this poor guy out and for the coroner to remove him.
Kinda makes the can openers, flashlights, sockets, extensions, wrenches and bucking bar I found seem a bit trivial.
Andy Scott