Where is the door Lock/Unlock indicator located?

Where is the door Lock/Unlock indicator located?

• A. Lower left door
• B. Door frame
• C. Upper mid door
• D. Overhead panel

Answer: (C)

The Lock/Unlock indicator is placed on the door itself, toward the upper middle area of the door. This position makes the status easy to see at a glance when the door is closed, so crew can confirm it’s latched and locked without having to open the door or look at the frame or panels elsewhere. Placing it on the door avoids visibility issues that could happen if it were on the frame or on an overhead panel, and keeps the status check convenient for cabin crew during preflight and boarding.

The Lock/Unlock indicator is placed on the door itself, toward the upper middle area of the door. This position makes the status easy to see at a glance when the door is closed, so crew can confirm it’s latched and locked without having to open the door or look at the frame or panels elsewhere. Placing it on the door avoids visibility issues that could happen if it were on the frame or on an overhead panel, and keeps the status check convenient for cabin crew during preflight and boarding.