To ensure the latches were properly positioned Placing , a handle on the outside of the door pressed Motion small metal pins into the latches ; if the latches were in the improper location the pins would not align Motion and the handle would not close .

To ensure the latches were properly positioned Placing , a handle on the outside of the door pressed Motion small metal pins into the latches ; if the latches were in the improper location the pins would not align Motion and the handle would not close .

This was because the linkage between the handle and the pins was too weak and allowed Preventing_or_letting the handle to be forced Motion into the closed position .