An MEL lets an aircraft be dispatched with certain equipment inoperative, under conditions the operator defines and the authority approves. It is built from the Master Minimum Equipment List (MMEL) for the type, tailored to the equipment actually installed and the operator’s procedures.
What you receive
- An MEL drafted from the current MMEL revision and tailored to the aircraft’s installed equipment
- Operational (O) and maintenance (M) procedures for the items that require them
- Preamble and definitions in the format your authority expects
- Revisions when the MMEL is revised
- Formats for Part 91 operators (Letter of Authorization D195), Part 121, 125 and 135 operators (OpSpec D095), EASA operators (ORO.MLR.105) and other authorities
Frequently asked questions
Does a Part 91 business jet need an MEL?
Under 14 CFR 91.213, a turbine-powered aircraft can be flown with inoperative instruments or equipment only under an approved MEL, or under a special flight permit. Without an MEL, any inoperative installed equipment grounds the aircraft.
When does an MEL need to be revised?
When the MMEL it is based on is revised, when equipment is added or removed, and when the operator’s procedures change.
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