Aviation English
Ground Ops

What is Pre‑conditioned air?

Pre‑conditioned air Air that has been heated or cooled and dehumidified before being supplied to an aircraft on the ground.

Source: ICAO Doc 9432, FAA PCG

How is “Pre‑conditioned air” Used in Practice?

Pre-conditioned air is required before passenger boarding commences.

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

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Frequently Asked Questions

What is Pre‑conditioned air?

Air that has been heated or cooled and dehumidified before being supplied to an aircraft on the ground.

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