Aviation English
Aircraft Systems

What is packs?

packs Air conditioning and pressurization units that cool, condition, and regulate the flow of air into the cabin using bleed air.

Source: ICAO Doc 9432, FAA PCG

How is “packs” Used in Practice?

ATC, we are shutting down one pack due to a fault, continuing climb.

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 pressure controllerCabin pressureLoss Of Pressurization

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Frequently Asked Questions

What is packs?

Air conditioning and pressurization units that cool, condition, and regulate the flow of air into the cabin using bleed air.

Where can I learn this term for free?

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