What does a "-" on an AFTO Form 781 signify?

A "-" on an AFTO Form 781 signifies that the condition of the equipment is unknown. This notation is critical in aviation maintenance as it communicates that the equipment has not been thoroughly inspected or evaluated, and there are no definitive conclusions about its serviceability or functionality. This uncertainty can arise from various scenarios, such as a lack of recent maintenance checks or incomplete documentation.

In aviation operations, clear communication about equipment status is vital for safety. Knowing that the condition is unknown means that additional investigation is necessary before the equipment can be deemed serviceable or ready for flight. This tracking helps maintain operational integrity and ensures that all personnel are aware of potential risks associated with using equipment that has not been properly evaluated.