U.S. Navy acronym meaning: Things Falling Off Aircraft. Serious condition requiring the submission of a Category 1 Hazardous Material Report within twenty-four hours of the incident to the cognizant field authority (CFA) and type commander (TYCOM.)

An example of TFOA would be a panel falling off of an aircraft and then landing in someone's front yard, larger structural parts shed during a catastrophic mechanical failure that caused the aircraft to crash or anything else that departs the airframe that is not supposed to.

Warning. The following is nothing more than blatant idol worship: TFOA could also be defined as Jet-Poop.