Which term describes a condition in which the pilot's control authority is compromised due to a jammed control surface?

• A. Aileron System Jammed
• B. Elevator Trim Fault
• C. Rudder Authority Reduced
• D. Flap System Jammed

Answer: (A)

When a control surface is physically stuck, the pilot’s ability to move that axis is lost. The term that directly describes a jammed surface affecting roll control is aileron system jammed, because the ailerons are the surfaces responsible for rolling the aircraft. If they’re jammed, roll authority is compromised, making it hard or impossible to bank or level the wings as commanded.

Elevator trim fault describes a pitch-trim issue rather than a stuck surface affecting roll. Rudder authority reduced refers to yaw control and doesn’t specify a jammed surface. Flap system jammed involves the flap mechanism rather than the primary control surface responsible for roll.