Aviation English
Fueling Deicing

What is Fuel freeze point?

Fuel freeze point The lowest temperature at which aviation fuel can remain fluid. If fuel cools below this point, it begins to solidify and can block filters and lines, causing engine failure.

Source: ICAO Doc 9432, FAA PCG

How is “Fuel freeze point” Used in Practice?

Ensure in-flight fuel temperature stays above the fuel freeze point, especially on long-haul, high-altitude flights.

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 Fuel freeze point?

The lowest temperature at which aviation fuel can remain fluid. If fuel cools below this point, it begins to solidify and can block filters and lines, causing engine failure.

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