L-1011 Landing Gear and Brakes: Gear or Door Lights (32-10)

There are three GEAR or DOOR lights located on the second officers panel which are used to determine which gear or door is causing a problem.

With the gear down and locked as indicated by the three green lights and the DOOR and IN TRANS lights on, the GAR or DOOR lights on the Send Officer's panel indicates the problem is with the left and right main dear doors.