Hold over time refers to what?

Hold over time refers to what?

• A. The time within which the aircraft must take off after de-icing
• B. The time the de-icing fluid lasts on the ground
• C. The time required for the de-icing crew to spray
• D. The time to start the APU after de-icing

Answer: (A)

Holdover time is the window after de-icing/anti-icing during which the aircraft is protected from ice, snow, or frost buildup. It’s the estimated time you must take off to keep the applied fluid effective. The exact holdover time depends on the specific fluid used and current conditions (temperature, precipitation, wind, rate of contamination, etc.) and is guided by holdover charts. If you haven’t departed before this time expires, you may need to reapply or extend protection. It’s not the time the fluid sits on the ground, nor the spray duration, nor a timing for starting the APU.

Holdover time is the window after de-icing/anti-icing during which the aircraft is protected from ice, snow, or frost buildup. It’s the estimated time you must take off to keep the applied fluid effective. The exact holdover time depends on the specific fluid used and current conditions (temperature, precipitation, wind, rate of contamination, etc.) and is guided by holdover charts. If you haven’t departed before this time expires, you may need to reapply or extend protection. It’s not the time the fluid sits on the ground, nor the spray duration, nor a timing for starting the APU.