Can the engine anti-ice system operate on the ground?

Can the engine anti-ice system operate on the ground?

• A. Yes
• B. No
• C. Only during takeoff
• D. Only in flight

Answer: (A)

Engine anti-ice heats the nacelle leading edge by routing bleed air to the inlet. This system can be used on the ground as long as a bleed-air source is available, which means you can use APU bleed air (even with engines not yet running) or engine bleed air when the engines are operating. The purpose is to prevent ice buildup during ground operations in icing conditions, including taxi and start, not just during takeoff or in flight. So yes, it can operate on the ground.

Engine anti-ice heats the nacelle leading edge by routing bleed air to the inlet. This system can be used on the ground as long as a bleed-air source is available, which means you can use APU bleed air (even with engines not yet running) or engine bleed air when the engines are operating. The purpose is to prevent ice buildup during ground operations in icing conditions, including taxi and start, not just during takeoff or in flight. So yes, it can operate on the ground.