A documentary I watched

I watched a documentary on the National Geographic channel, where a pilot was blown out of the cockpit onto the outside of a plane when its front window shattered. He almost died of hypothermia after being exposed to the cold winds for a long time.

It was later found that the engineer in charge of maintaining the plane had used screws a size too small to fasten the glass panel onto the front of the plane. He had matched the original worn-out screws to their new counterparts by sight, without realising that they were actually of the wrong dimensions. He had also shrugged off the reminder of his colleague to counter-check his new screws with the data in the manual provided.

Though it was part of his normal routine in the maintenance of the plane, and he didn't mean to be lazy about it, it still put him at the centre of an investigation pertaining to the pilot's ordeal. Lucky for him that the pilot survived the arduous situation he had been in.