Aviation English
Ground Ops

What is ASU connected?

ASU connected Confirmation that the Air Start Unit is attached and supplying pneumatic power for engine start procedures on the ground.

Source: ICAO Doc 9432, FAA PCG

How is “ASU connected” Used in Practice?

Ground, confirm ASU connected and ready for engine start sequence on flight GH012.

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 ASU connected?

Confirmation that the Air Start Unit is attached and supplying pneumatic power for engine start procedures on the ground.

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