She opens a hatch door to the plane's attic and throws out a binder to fool him.
Retrieved from Wikipedia CC BY-SA 3.0
The accepted cause of the disappearance was the removal of a 2 by 4 foot hatch door.
Retrieved from Wikipedia CC BY-SA 3.0
Each of the many pens inside has an upward sliding hatch door to the west and north controlled from the inside by rope and pulley.
Retrieved from Wikipedia CC BY-SA 3.0