To close the door from the inside of the aircraft, you must ensure that the ________ is free from obstruction, and that the caution strap is stowed.

To close the door from the inside of the aircraft, you must ensure that the ________ is free from obstruction, and that the caution strap is stowed.

• A. Girt Bar / Sill
• B. Lifeline
• C. OWE
• D. Door frame

Answer: (A)

The key idea is that a door can be closed from inside only when the mechanism that locks it to the floor is clear and free to engage. The girt bar is the bar that slides into floor fittings (the sill) to secure the door and create the proper seal and structural support for emergency operation. If anything is blocking the sill or the path where the girt bar must travel, the door won’t close and latch properly. The caution strap must also be stowed so it cannot interfere with the door’s movement or its locking mechanism during closure. Leaving the strap out can snag or prevent full closure. Lifelines are used for evacuation setups and aren’t part of the immediate door-closure mechanism. Overwing exits relate to a different type of exit, not the interior door closure. The door frame is the structural surrounding, but the obstruction preventing proper closure is typically on the sill where the girt bar engages, not the frame itself.

The key idea is that a door can be closed from inside only when the mechanism that locks it to the floor is clear and free to engage. The girt bar is the bar that slides into floor fittings (the sill) to secure the door and create the proper seal and structural support for emergency operation. If anything is blocking the sill or the path where the girt bar must travel, the door won’t close and latch properly.

The caution strap must also be stowed so it cannot interfere with the door’s movement or its locking mechanism during closure. Leaving the strap out can snag or prevent full closure.

Lifelines are used for evacuation setups and aren’t part of the immediate door-closure mechanism. Overwing exits relate to a different type of exit, not the interior door closure. The door frame is the structural surrounding, but the obstruction preventing proper closure is typically on the sill where the girt bar engages, not the frame itself.