What is FOD?
FOD is an acronym that has multiple meanings:
1) FOD Foreign Object Debris
2) FOD Foreign Object Damage
Foreign Object Debris is a substance, debris or any item that may cause harm to a system . It is leftover material in the vicinity of an area or system that has the potential to produce negative effects if not properly removed.
Proactive actions should be taken to ensure FOD does not exist in a system
Foreign Object Damage is the damage that is attributed to foreign object debris.