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When about to operate an aircraft with an inoperative item of equipment, which document should the Commander use as a reference?
  • A
    Minimum Equipment List produced by the operator and based on the Aeroplane Flight Manual.
  • B
    Master Minimum Equipment List produced by the manufacturer and approved by the Competent Authority.
  • C
    Minimum Equipment List produced by the operator and approved by the Competent Authority.
  • D
    Master Minimum Equipment List produced by the operator and approved by the Competent Authority.

EASA AIR OPS
Regulation (EU) 2019/1384
CAT.IDE.A.105 Minimum equipment for flight

A flight shall not be commenced when any of the aeroplane’s instruments, items of equipment or functions required for the intended flight are inoperative or missing, unless:

(a) the aeroplane is operated in accordance with the operator’s MEL; or
(b) the operator is approved by the competent authority to operate the aeroplane within the constraints of the master minimum equipment list (MMEL) in accordance with point ORO.MLR.105(j) of Annex III.

ICAO Annex 6

Master minimum equipment list (MMEL). A list established for a particular aircraft type by the organization responsible for the type design with the approval of the State of Design containing items, one or more of which is permitted to be unserviceable at the commencement of a flight. The MMEL may be associated with special operating conditions, limitations or procedures.

Minimum equipment list (MEL). A list which provides for the operation of aircraft, subject to specified conditions, with particular equipment inoperative, prepared by an operator in conformity with, or more restrictive than, the MMEL established for the aircraft type.

  • The manufacturer draws up a Master Minimum Equipment List (MMEL). The MEL (Minimum Equipment List) is drawn up by the operator and cannot be less restrictive than the MMEL.

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