Aviation English
Basic ATC

What is Terrain?

Terrain The physical features of the land that may pose a hazard to aircraft.

Source: ICAO Doc 9432, FAA PCG

How is “Terrain” Used in Practice?

Pilot, caution terrain, maintain current altitude.

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

above ground levelAltimeter settingCruiseFlight level

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Frequently Asked Questions

What is Terrain?

The physical features of the land that may pose a hazard to aircraft.

Where can I learn this term for free?

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