Aviation English
Aircraft Systems

What is recirc fan?

recirc fan A fan that recirculates cabin air, mixing it with conditioned air to improve efficiency and reduce bleed air demand.

Source: ICAO Doc 9432, FAA PCG

How is “recirc fan” Used in Practice?

Flight, the recirc fan is inoperative, so cabin airflow will rely on packs only.

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

mixing unitcabin intercommunication systemoutflow valvepacks

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Frequently Asked Questions

What is recirc fan?

A fan that recirculates cabin air, mixing it with conditioned air to improve efficiency and reduce bleed air demand.

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