Prior to engine start, what action must be taken to prevent aircraft movement?

Prior to engine start, what action must be taken to prevent aircraft movement?

• A. Wheels chocked and brakes set
• B. Parking brake only
• C. Doors closed
• D. Engine cover placed

Answer: (A)

Preventing movement during engine start is about physically restraining the airplane so it can’t roll on the ramp. Placing wheel chocks against the tires provides a solid, mechanical block to wheel rotation, and setting the parking brake locks the wheels and holds the brake system so the aircraft can’t move even if engine spool-up or external forces try to shift it. Using both together gives redundancy: if one system loses pressure or fails, the other still prevents movement. Doors closing or placing an engine cover don’t affect the aircraft’s ability to move on the ground, so they don’t accomplish this goal.

Preventing movement during engine start is about physically restraining the airplane so it can’t roll on the ramp. Placing wheel chocks against the tires provides a solid, mechanical block to wheel rotation, and setting the parking brake locks the wheels and holds the brake system so the aircraft can’t move even if engine spool-up or external forces try to shift it. Using both together gives redundancy: if one system loses pressure or fails, the other still prevents movement. Doors closing or placing an engine cover don’t affect the aircraft’s ability to move on the ground, so they don’t accomplish this goal.