add - an EU thing, not sure on the exact acronym but basically NEF not essential for flight. The MEL minimum equipment list is there to list the potential safety of flight items usually electronic that an aircraft can operate without for a prescribed period of time, it does not cover non safety of flight items, thus the add program.
Not quite, Grounded27
A.D.D. Acceptable Deferred Defect. Not NEF necessarily but it can be. It can also be an MEL or CDL item.
MEL items are not usually electronic at all, they can be any number of mechanical/electronic/pneumatic etc systems.
Non-safety to flight items can be covered in an MEL at the operators discretion as an aid to assisting timely rectification of, for example, passenger convenience items such as a business class seat leg rest inop.
ADD also known as HIL (Hold Item List) depends on operator/NAA.
The closest I can think I have seen on US reg a/c is the PLA or Placard sticker on a log book, but that is usually a MEL/CDL deferral.
Brigid the only thing you have taught us is how to be very very unpopular, tata.
