Basic ATC

Không thể

A phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.

Quick answer: A phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.

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Languages

Quick answer

A phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.

Why it matters

Không thể matters because it supports clear communication in Basic ATC 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

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Questions and answers

Questions and answers

What is Không thể?

In this glossary, Không thể refers to: A phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.

How is Không thể used in aviation?

In aviation communication, this term appears in contexts such as: "Phi công khuyên: 'Không thể tuân thủ hạn chế độ cao, yêu cầu phương án thay thế.'"

Why does Không thể matter in aviation?

Không thể matters because it supports clear communication in Basic ATC 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 Không thể?

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

What category does Không thể belong to?

In this glossary, Không thể is grouped under Basic ATC. 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 phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.

Operational example

Pilot advises: 'Unable to comply with altitude restriction, request alternative.'

Localized term

Không thể

Localized example

Phi công khuyên: 'Không thể tuân thủ hạn chế độ cao, yêu cầu phương án thay thế.'

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Basic ATC

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.

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