On door exit cabin pressure light what does it mean?

• A. Doors are disarmed
• B. Engines are Off
• C. Doors are closed
• D. Cabin Pressurized

Answer: (D)

The door exit cabin pressure light is a status indicator for the cabin’s pressurization system. When this light is on, it means the cabin is being pressurized and maintained at the required cabin altitude. It’s not about doors being closed or disarmed, nor about the engines being off—the indicators for those statuses come from other systems. Maintaining cabin pressure is essential for passenger comfort and safety at altitude, so this light confirms the environmental control system is actively managing the cabin pressure. If pressurization were to be lost, the light would not be on and a cabin altitude warning would typically appear.