What is the difference between Mel and MMEL?

Their difference is that the MEL is formulated for a particular operator and a certain aircraft or a few aircraft, whereas the MMEL is formulated for all aircrafts of this type. The MEL of the operator shall be based on the MMEL of a specific aircraft type and model approved by the authorities.

Which is more restrictive Mel or MMEL?

The MEL must be as restrictive as or more restrictive than the MMEL and must be approved by the Operator’s national airworthiness authorities. The MMEL provides a list of items with associated conditions for dispatch.

What does MMEL stand for in aviation?

master minimum equipment list
SKYbrary Wiki The master minimum equipment list (MMEL) is a list established for a particular aircraft type by the organisation responsible for the type design with the approval of the State of Design which identifies items which individually may be unserviceable at the commencement of a flight.

What are the categories of Mel?

There are four different categories; A – the deferral period defined in the comments column of the MEL, B – three days, C – 10 days, and D – 120 days. In closing, to operate an aircraft with inoperative instruments or equipment you have to comply with the requirements of 14 CFR Part 91.213.

Who prepares MMEL?

MMEL is defined on a per aircraft model basis. MEL is prepared by the operator by taking reference of the MMEL keeping in mind the type and number of equipment installed. Initial issue of the MEL and its subsequent revisions will be approved by competent authority.

Who develops an MMEL?

A minimum equipment list is developed by (or on behalf of) an aircraft operator based on a ‘Master Minimum Equipment List’ (Master MEL or MMEL) developed by the aircraft manufacturer. The MMEL is a document that covers all aircraft of a given type, or even a range of types.

What is difference between Mel and CDL?

While the MEL describes the limitations of aircraft operation in case of a system being inoperative/having malfunctioned (e.g. transponder failure), the CDL deals with situations where external parts of an aircraft are missing/fallen off (e.g. fairings, aerodynamic seals or panels).

Can an MEL be extended?

The FAA does have policy in Order 8900.1 to allow continuing authorizations (extensions). If the operator wants or needs to extend the interval again, the operator must get approval from the FAA office.

What is a Koel in aviation?

As the name implies, the Kinds of Operations Equipment List (KOEL) is a list of equipment installed in an aircraft that specifies for which kinds of operations a specific piece of equipment is required. The KOEL is used as part of the process of determining if an aircraft with inoperative equipment is airworthy.

What is a320 CDL?

A configuration deviation list (CDL) is a list, established by the organization responsible for the type design with the approval of the State of Design, which identifies any external parts of an aircraft type which may be missing at the commencement of a flight, and which contains, where necessary, any information on …