What is First fluid?
First fluid The initial de-icing or anti-icing fluid applied to remove contaminants from aircraft surfaces, typically a heated mixture.
Source: ICAO Doc 9432, FAA PCG
How is “First fluid” Used in Practice?
Ground, confirm first fluid application is complete before switching to second fluid during de-icing.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is First fluid?
The initial de-icing or anti-icing fluid applied to remove contaminants from aircraft surfaces, typically a heated mixture.
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