What does MEL stand for in aviation terms?

In aviation, MEL stands for Minimum Equipment List. This document is crucial as it outlines which equipment must be operational for an aircraft to be deemed airworthy under specific conditions. It provides a structured approach for operators to determine the minimum equipment necessary for safe flight operations and allows for certain non-essential systems to be inoperative without compromising safety.

The concept of a Minimum Equipment List is vital because it ensures that even if some systems are not functioning, the aircraft can still be safely operated, provided it adheres to the stipulations set out in the MEL. The MEL is tailored for individual aircraft and is derived from the aircraft's master equipment list, which includes all the equipment on the aircraft.

Other options describe different concepts that are not standard terms in aviation. For example, a Mandatory Equipment List could imply a list that is compulsory for all operations, but this terminology is not commonly used. A Maintenance Equipment List might suggest a list related to tools and equipment needed for maintenance, while a Maximum Equipment List is not a recognized standard in aviation terminology. Thus, the correct understanding of MEL is vital for ensuring compliance with regulatory safety requirements in aviation.