The MMEL and the MEL

MMEL The manufacturer MMEL is a dispatch document that is produced by the aircraft manufacturer and approved by the certification authorities. The MMEL is used as a reference by the Operators to create their own MEL, which will permit the dispatch and operation of an aircraft with one or more inoperative equipment or unavailable system function while maintaining an acceptable level of safety. MEL, The MEL is a dispatch document developed by the Operator based on the aircraft manufacturer’s 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 MEL permits the Operator to assess the impact on their operations (flight schedule, route, environmental conditions,...) while operating an aircraft with systems, functions or components inoperative, thus to optimize aircraft dispatch reliability and profitability without impairing safety.

[@user-bx4bd3zd3k]

thank you Mr.Haitham

[@lukaszgelardi1163]

Good video 👌🏼

[@Haytham_Aly]

Most welcome

[@yanish007]

Thank you so much! Your explanations helps

[@archerpiperii2690]

Thank you so much for making this!

[@Haytham_Aly]

Many many thanks for the nice words and please let me know if you have any advice regarding this training sessions.
Regards
Haytham aly

[@riyad5541]

Great video, well explained.

[@Haytham_Aly]

Many many thanks for your support and encouraging behavior 😊, have a look onto the other training sessions and please advice if you have any other comments.
Regards
Haytham aly

[@eneko6268]

❤️😎

[@ShakurDiego]

great video

[@Haytham_Aly]

Many thanks brother

[@manererdogan3276]

Thanks for sharing. l like your video. l wonder what is all this about "Z"? Why do you use before any word?
Like ZMEL etc.

[@dailyinfo.v1624]

Very nice

[@Haytham_Aly]

Hope it is useful brother, always don't hesitate to contact us if you have any advice regarding my training sessions, from aviation training solutions, we thank you very much

[@rajamandava458]

Hi Thanks for explaining, I have a small question, do we recreate or re-run the fault trees with MMEL to see the impact on the probability of occurrence numbers of the particular Hazard? If we are not meeting the probability of occurrence requirement with the MMEL, are we still recommending the aircraft dispatch?

[@thecommentator6450]

شكرا

[@Haytham_Aly]

لا شكر علي واجب

[@johnrothen8218]

Is the MMEL a binding document? ie. A Citation 525A flying Part 91 that has an inoperative seat belt shoulder harness - The MMEL states that it has to work, but he is Part 91.

[@vemcaeconomizarcomcarlab10]

Hi! I´m looking for historic information about why the first MMEL was criated. Do you know
some historical moment that pointed out the need to prepare the first? Perhaps some specifc aircraft accident? Or any other event?

[@Haytham_Aly]

that is a very good question carla , will try to find an answer and will feedback you

[@user-wk2qz7po6d]

Could you explain more about
MEL is more “restrictive” than MMEL?

[@vemcaeconomizarcomcarlab10]

While MMEL may dispatch some system inoperative for a period, maybe the authorities country´s rules can determine that specific system must be operative to that aircraft be able to flight. Another example of "more restrictive": If MMEL allows the airplane to fly with all its doors inoperative, since there is no passenger on board for 120 days, the operator can choose restrict this kind of failure be able only for 3 flight cycles before be fixed, due high costs involved.

[@user-tk7qs7ss6m]

Is it possible to do MEL extension to A category items???

[@georgehardie2016]

You don’t explain the difference between manufacturer and operator

[@Haytham_Aly]

Will do

[@rfd87]

Explain how to refer MEL

[@Haytham_Aly]

Sure I will do