Aviation English
Ground Ops

What is Chocks?

Chocks Wedges placed in front of and behind aircraft wheels to prevent movement when parked.

Source: ICAO Doc 9432, FAA PCG

How is “Chocks” Used in Practice?

Chocks are in place and ground power is connected, parking complete.

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 Chocks?

Wedges placed in front of and behind aircraft wheels to prevent movement when parked.

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