I had a suspicion of the (FOD) acronym's meaning, but I had to look it up to be sure:
https://fodnews.com/ a good place to start, lots of examples. Aviation unfortunately is full of them. Chuck Yeager's biography had a story about an airframe line worker who decided he knew-better than the instruction manual about how-to asssemble a critical nut and bolt in the combat aircraft's tail. His method caused at least one fatality when a control mechanism got hung-up on his assembly sequence, which placed part of the fastener into a place nothing was supposed to be, jamming a control surface, and turning the combat jet into a flying coffin, but not for long, as the plane crashed. Once the forensic examination revealed the source of the problem, a stop-flights order was issued, grounding all the planes, to check for proper assembly sequence, and the line worker was removed from his position for re-training.
One of the guys who bought an early Chapparral sports racer from Jim Hall, and who campaigned it, had something happen to him, where a mechanic forgot to remove a spark plug atop the intake manifold. The car owner/driver was on the track, and at some point, under the violent directional changes and acceleration/deceleration, the spark plug shifted its position, and came to rest in-proximity to the bellcrank throttle mechanism, locking the throttle open, and causing an accident. Luckily, the car wasn't totaled, and the driver didn't become seriously-injured.
I used SNAP-ON tools for eight years working on Navy Drone aircraft.
Tool checks three times a day for FOD control.
We referred to them as SNAP-OFF tools.....