Aviation English
Ground Ops

What is Beacon on?

Beacon on Indicates that the aircraft's anti-collision beacon lights have been switched on, typically prior to engine start, signaling that engines may be running or about to start.

Source: ICAO Doc 9432, FAA PCG

How is “Beacon on” Used in Practice?

Tower, beacon is on and ready for pushback. Requesting clearance.

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

What is Beacon on?

Indicates that the aircraft's anti-collision beacon lights have been switched on, typically prior to engine start, signaling that engines may be running or about to start.

Where can I learn this term for free?

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