It wasn't in the engine. I found this, but I'd like to know more about this publication. If true, as usual, a whole series of silly mistakes contributed. ALLEGEDLY:
http://www.askthepilot.com/untold-concorde-story/
A friend was on a small bush plane and the pilot loaded all of the gear (almost to weight capacity). During loading the rear of the plane was too heavy and it tilted back and the tail hit the ground.
No visible exterior damage, and they moved the now shifted load farther to the front and tied it down.
On take-off, they got off the ground and started climbing. And kept climbing. And kept climbing. Somehow the pilot was able to land it safely. When the cargo had shifted it had damaged the cables or something to do with the ailerons (?), and they had stuck in the take-off position.
I mean - it was all operator error I guess, but still a bunch of errors that almost combined to kill them. (From the movies - don't they always check their flaps as they are taxiing?). Who knows what one other little error might have been the straw that broke the camel's back.