Originally Posted by
canadiancow
One thing I gathered from the Gimli wiki entry is that MEL and MMEL are not the same thing. Assuming I'm not already wrong, can you concisely explain the differences? I ask because you've used both acronyms and most of this is way over my head

You made me curious as well.
https://www.aopa.org/asf/publication...m?article=4590
"...An MEL for a specific aircraft originates from a master minimum equipment list (MMEL). The MMEL is a list of all equipment on an aircraft type; it details which equipment is allowed to be inoperative without grounding the aircraft. (Think of a MMEL as a general, broader MEL.) The FAA has developed and has on file MMELs for most of the type-certificated aircraft in use today....This formula will help you remember: MMEL + Procedures Document + LOA = MEL."