Aviation English
Aircraft Systems

What is safety valve?

safety valve A valve designed to automatically relieve excess pressure or vacuum to protect the aircraft structure.

Source: ICAO Doc 9432, FAA PCG

How is “safety valve” Used in Practice?

Maintenance, the safety valve actuated during climb, possible overpressure, system inspection required.

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

outflow valveCabin pressuretraffic collision avoidance systempacks

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Frequently Asked Questions

What is safety valve?

A valve designed to automatically relieve excess pressure or vacuum to protect the aircraft structure.

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