Aviation English
Emergencies

What is Unlawful Interference?

Unlawful Interference An act of unlawful seizure, threat or attack against an aircraft, its passengers, crew or ground infrastructure that endangers aviation safety.

Source: ICAO Doc 9432, FAA PCG

How is “Unlawful Interference” Used in Practice?

Mayday, mayday, mayday, this is Flight 216, we are subject to unlawful interference.

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 Unlawful Interference?

An act of unlawful seizure, threat or attack against an aircraft, its passengers, crew or ground infrastructure that endangers aviation safety.

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