Plain English Meaning

A logbook-style list of what is broken or not working on the aircraft, when it was noticed, and what was done about it.

Full Definition

A written record kept with the aircraft that lists items of equipment which are inoperative, deferred, or otherwise not functioning normally, along with the date noted and the action taken. It is used to document the condition of the aircraft and to track inoperative equipment that has been properly deferred under the applicable inoperative equipment procedures.

Context Anchor

You see this term when deciding whether an aircraft with inoperative equipment may be flown, especially during preflight, postflight, and maintenance-log review.

Derivation

Discrepancy comes from the Latin discrepare, meaning 'to differ' or 'to disagree.' In aviation it refers to anything about the aircraft that differs from its , fully .