Which condition imposes restrictions during flight?

• A. Ground X
• B. Circle X
• C. Dash
• D. Lock

Answer: (B)

Understanding how flight restrictions are indicated is key. The circle X symbol signals a condition that applies to flight and must be resolved before the aircraft is allowed to fly. It marks a flight-restrictive issue, meaning the airworthiness status is affected until the problem is addressed.

Ground X would imply restrictions only during ground operations, not in flight. A dash typically means no special restriction, and a lock indicates a secured or locked condition, not specifically a flight restriction. So the circle X is the indicator that directly ties to restrictions during flight.