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‐ A buzzer.
The keypad enables the cabin crew to request access to the cockpit. There are two different access
request types : “Routine” and “Emergency” access request .Refer to PRO-SUP-25-A Cockpit Door
Operation - General
The toggle switch enables the flight crew to lock or unlock the cockpit door, following an access
request, thereby allowing or denying entry into the cockpit.
The cockpit door control unit is the system controller, in charge of :
‐ Locking or unlocking the door latches, upon flight crew action.
‐ Unlocking the door, in case of cockpit decompression (the door then opens towards the cockpit
under differential pressure).
‐ Indicating system failures of electrical latches and pressure sensors.
‐ Activating the access request buzzer and turning on the keypad LEDs.
The buzzer sounds in the cockpit for 1 to 9 s to indicate that a routine access request has been
made, or sounds continuously if an emergency access procedure has been initiated.
CONTROLS
Applicable to:
KEYPAD
The keypad is used by the cabin crew to request pilots to open the door Refer to PRO-SUP-25-A
Cockpit Door Operation - After Engine Start .
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A330/A340 FLEET DSC-25-11-20 P 2/6
FCOM 19 AUG 10
(1) LOCKED/UNLOCKED DOOR INDICATOR
GREEN light ON : The door has been unlocked either by a flight crew action, or
automatically (during 5 s) when no flight crew action has been
performed during the delay following an emergency access request.
The door can be pushed open.
GREEN light
flashes
: An emergency request to enter the cockpit has been made ; the
buzzer will sound continuously in the cockpit, but no action has yet
been taken by the flight crew.
RED light ON : The flight crew has denied access, and the door remains locked.
(2) DIGITAL KEYPAD
The keypad is used to sound the buzzer in the cockpit for one to nine seconds (three
seconds by default), by entering a zero to seven-digit code, as programmed by the airline,
followed by the '#' key.
It is also used to enter the two to seven-digit emergency code, followed by the '#' key, when
the flight crew does not respond.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A330/A340 FLEET DSC-25-11-20 P 3/6
FCOM 19 AUG 10
Applicable to: ,
KEYPAD
The keypad is used by the cabin crew to request pilots to open the door Refer to PRO-SUP-25-A
Cockpit Door Operation - After Engine Start .
(1) LOCKED/UNLOCKED DOOR INDICATOR
WHITE light ON
briefly
: The light comes on each time the cabin crew presses a key on the
keypad.
GREEN light ON : The door has been unlocked either by a flight crew action, or
automatically (during 5 s) when no flight crew action has been
performed during the delay following an emergency access request.
The door can be pushed open.
GREEN light
flashes
: An emergency request to enter the cockpit has been made ; the
buzzer will sound continuously in the cockpit, but no action has yet
been taken by the flight crew.
RED light ON : The flight crew has denied access, and the door remains locked.
(2) DIGITAL KEYPAD
The keypad is used to sound the buzzer in the cockpit for one to nine seconds (three
seconds by default), by entering a zero to seven-digit code, as programmed by the airline,
followed by the '#' key.
A330/A340 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A330/A340 FLEET DSC-25-11-20 P 4/6
FCOM 19 AUG 10
It is also used to enter the two to seven-digit emergency code, followed by the '#' key, when
the flight crew does not respond.
Applicable to: ALL
CENTRAL PEDESTAL COCKPIT DOOR PANEL
The secured cockpit door opening is controlled by a toggle switch, located on the central pedestal.
(1) COCKPIT DOOR toggle switch
UNLOCK
position
: This position is used to enable the cabin crewmember to open the door.
The switch must be pulled and maintained in the unlock position until
the door is pushed open.
NORM position : All latches are locked, and EMERGENCY access is possible for the
cabin crew.
LOCK position : Once the switch has been moved to this position, the door is locked ;
emergency access, the buzzer, and the keypad are inhibited for a
preselected time (5 to 20 min).
Note: 1. If the LOCK position has not been used by the pilot, for at least 5 to 20 min, the
　
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