What is Water paste?
Water paste A chemical indicator applied to the end of a fuel tank dipstick to detect the presence of water at the bottom of aviation fuel tanks during preflight inspections. Used to ensure fuel quality and prevent engine or fuel system contamination.
Source: ICAO Doc 9432, FAA PCG
How is “Water paste” Used in Practice?
Before refueling, apply water paste to the gauge stick to check for water contamination in the fuel tank.
Certification Exam Relevance
Who Needs to Know This Term?
- Pilots
- Air Traffic Controllers
- Cabin Crew
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What is Water paste?
A chemical indicator applied to the end of a fuel tank dipstick to detect the presence of water at the bottom of aviation fuel tanks during preflight inspections. Used to ensure fuel quality and prevent engine or fuel system contamination.
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