<p>A locking (22) device is provided for holding an aircraft door (16) in an open position. The device (22) includes a first member (30) connected to the door (16) which moves in correspondence with door opening and closing. A second member (36) of the device is fixedly connected to aircraft structure that supports the door (16). A locking pin (40), connected to the first member (30), is engaged with a pin receiving opening in the second member (36) when the door (16) is fully open to hold the door (16) in such position. The pin (40) is movable axially by a manually operated lever (104) to disengage the pin when it is desired to close the door.</p>