MEL and CDL MEL and CDL
A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
Quick answer: A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
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A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
deferral matters because it supports clear communication in MEL and CDL MEL and CDL contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.
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Questions and answers
In this glossary, deferral refers to: A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
In aviation communication, this term appears in contexts such as: "Deferral has been approved for this MEL item, maintenance must be completed within allowed interval."
deferral matters because it supports clear communication in MEL and CDL MEL and CDL contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.
deferral is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.
In this glossary, deferral is grouped under MEL and CDL MEL and CDL. Related pages in this category explain adjacent procedures, commands and operational concepts.
This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.
A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.
Deferral has been approved for this MEL item, maintenance must be completed within allowed interval.
English reference definition
ICAO Doc 9432, FAA PCG
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