MD-11 Flight Crew Operations Manual
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Aircraft General -
Controls and Displays
Agen.30.12
1. CKPT DOOR LOCK Selector
Two indicator lights and a three position door lock selector are located on the
cockpit door lock panel on the lh lower side of the ovhd panel. The lock
selector is spring loaded to AUTO, enabling automatic unlocking via the
Emergency Access Panel. Holding the lock selector in UNLKD unlocks the
cockpit door, and in DENY prevents automatic unlocking from the cabin.
Illumination of the amber LOCK FAIL light indicates the door lock has
failed, the door is not fully closed, or the power cutoff switch has been
selected off. The amber AUTO UNLK light flashes after keypad entry of the
Emergency Access Panel to indicate the door will automatically unlock.
2. Door Control / Chime Module (DCM)
On the lh fwd side of the Upper Maintenance Panel a DCM with a power
cutoff switch is mounted. The cutoff switch has a guarded NORM position
and an OFF position, controlling electrical power to the door lock. The door
unlocks when electrical power (DC Bus 2) is removed. The chime function is
activated via the DCM.
3. Viewing port
A viewing port in the door allows observation of the passenger cabin.
4. Emergency Access Panel (EAP)
An Emergency Access Panel is mounted on the rh (fwd looking) doorpost at
the cabin side. It consists of a 6-button keypad along with a green, amber and
red light.The key pad can be used to enter an Emergency Access Code (EAC).
When the correct EAC is entered, the amber keypad light will illuminate and
in the cockpit the AUTO UNLK light illuminates and the DCM chime will
sound. The cockpit door unlocks after a 60 seconds delay and remains
unlocked for 5 sec. The red light will illuminate on the EAP to indicate the
door is locked. The green light illuminates to indicate the door is unlocked. If
at the keypad the doorbell code is entered (1+ENT) the DCM chime will
sound in the cockpit. No automatic unlocking will occur in this case.
October 02, 2006
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