If you observe a flashing white signal from the control tower while taxiing, what action should you take?

If you observe a flashing white signal from the control tower while taxiing, what action should you take?

• A. Move clear of the runway immediately
• B. OK to proceed but use extreme caution
• C. Test the brakes
• D. Return to starting point

Answer: (D)

Flashing white from the tower while taxiing is a ground signal telling you to return to the starting point on the airport. In other words, turn around and taxi back to where you began your taxi, then wait for further instructions. This signal is used to reposition aircraft on the ground when radio guidance isn’t being given or when the tower needs you to stop advancing along your current path. It’s not a cue to continue moving, to stop abruptly to test brakes, or to move off the area, so those options don’t fit this signal.

Flashing white from the tower while taxiing is a ground signal telling you to return to the starting point on the airport. In other words, turn around and taxi back to where you began your taxi, then wait for further instructions. This signal is used to reposition aircraft on the ground when radio guidance isn’t being given or when the tower needs you to stop advancing along your current path. It’s not a cue to continue moving, to stop abruptly to test brakes, or to move off the area, so those options don’t fit this signal.