MEL and CDL MEL and CDL

延期

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.

This term page is part of the Protermify Aviation glossary and is published as static HTML for fast indexing and clear language coverage.

Languages

Quick answer

A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.

Why it matters

延期 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.

Editorial context

This page is rendered as static HTML from source-backed terminology data so search engines and AI systems can parse the content without client-side code.

Questions and answers

Questions and answers

What is 延期?

In this glossary, 延期 refers to: A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.

How is 延期 used in aviation?

In aviation communication, this term appears in contexts such as: "该MEL项目的延期已批准,维护必须在允许的时间内完成。"

Why does 延期 matter in aviation?

延期 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.

Who uses 延期?

延期 is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does 延期 belong to?

In this glossary, 延期 is grouped under MEL and CDL MEL and CDL. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limits.

Operational example

Deferral has been approved for this MEL item, maintenance must be completed within allowed interval.

Localized term

延期

Localized example

该MEL项目的延期已批准,维护必须在允许的时间内完成。

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Exam relevance

  • ICAO Level 4
  • ICAO Level 5
  • ICAO Level 6
  • EASA FCL.055

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

Use the related links below to continue through connected aviation terminology.

Back to glossary