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MAC

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Article Information
Category: ICAO ADREP ICAO ADREP
Content source: ICAO ICAO
Content control: EUROCONTROL EUROCONTROL

Definition

MAC: Airprox/ ACAS alert/ loss of separation/ (near) midair collisions - Airprox, ACAS alerts, loss of separation as well as near collisions or collisions between aircraft in flight.

Usage Notes

  • Includes all collisions between aircraft while both aircraft are airborne.
  • Both air traffic control and cockpit crew separation-related occurrences are included.
  • To be used for AIRPROX reports
  • Genuine TCAS alerts are included here.