- FOD Tutorial
- Foreign Object (FO): a substance or particle alien to the aircraft or assembly that has been allowed to invade the product. FO is further defined as:
- Critical FO: foreign objects in the immediate area of or in areas from which migration is possible, e.g., through tooling holes, bend relief cutouts, drain holes, etc., and which could cause a system or component malfunction or deterioration.
- Noncritical FO: any FO not classified as critical.
- Foreign Object Damage (FOD): any damage attributed to a
foreign object that can be expressed in physical or economic (monetary) terms which may or may not degrade the product's required safety and/or performance characteristics.
- FOD Prevention Program: a formal, documented, disciplined program designed to prevent FOD caused by events or conditions under control of the contractor.
- Potential FOD: the as-found condition where a FO is in a position to cause damage should the product be put into use. Examples are:
- Tools, manufacturing and inspection hardware, and other objects left in the vicinity of or in a migratory path of engine inlets.
- Metal or wire clippings, solder balls, and debris lying in the vicinity of electrical terminals, circuitry, connectors, components, etc.
- Tools, hardware or debris left in the vicinity or in a
migratory path of a vehicle's control system.
- Debris lying on runways, ramps and taxiways.