MEL and CDL MEL and CDL

Độ lệch la bàn

Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.

Quick answer: Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.

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

Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.

Why it matters

Độ lệch la bàn 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 Độ lệch la bàn?

In this glossary, Độ lệch la bàn refers to: Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.

How is Độ lệch la bàn used in aviation?

In aviation communication, this term appears in contexts such as: "Tháp, TANGO ba không, độ lệch la bàn vượt giới hạn sau bảo dưỡng; xin back-taxi để hiệu chuẩn la bàn."

Why does Độ lệch la bàn matter in aviation?

Độ lệch la bàn 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 Độ lệch la bàn?

Độ lệch la bàn is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does Độ lệch la bàn belong to?

In this glossary, Độ lệch la bàn 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

Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration swing.

Operational example

Tower, TANGO three zero, compass deviation exceeds limits after maintenance; request back-taxi for compass swing calibration.

Localized term

Độ lệch la bàn

Localized example

Tháp, TANGO ba không, độ lệch la bàn vượt giới hạn sau bảo dưỡng; xin back-taxi để hiệu chuẩn la bàn.

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