Which statement about flaps during icing is true?

• A. Extended during climb only
• B. Always extended during flight
• C. Not sustained unless approach/landing
• D. Flaps are not affected by icing

Answer: (C)

Ice on extended surfaces changes their behavior and can make control more difficult. Flaps, when extended, create more surface area for ice to accumulate, which increases drag, changes lift, and raises stall speed. Because of these risks, you generally don’t keep flaps out in icing conditions unless you’re preparing for a landing. Extend them only for the approach and landing as needed, then retract as soon as possible. That’s why the true statement is that flaps are not sustained unless you’re approaching or landing. The other ideas aren’t accurate because flaps can be affected by icing, they aren’t something you would always keep extended, and icing isn’t limited to the climb phase.