Foreign object debris

TFOA refers to items that fall off an aircraft during taxi, takeoff, flight, or landing. These items can cause damage or injury, depending upon their size. When they fall on an aircraft runway, they can become foreign object debris (FOD) for another aircraft. Recall the Concorde mishap where a FOD item on the runway was the basic cause of the crash, and the FOD item was a TFOA item from a previous aircraft that had used the same runway. 

Were debris and other foreign objects removed from the equipment and piping prior to start-up How often is the unit cleaned What is the appearance of the equipment before cleaning Is the cleaning adequate ... 

Were debris or other foreign objects removed from the equipment and piping prior to start-up ... 

Cleaning Means. This sense defines the importance of eliminating dirt, debris, or foreign objects unnecessary to the environment. This sense can extrapolate to the personal aspect referring to honesty, openness, respect, and transparency. 

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