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COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A318/A319/A320/A321 FLEET DSC-25-11-20 P 2/4
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 is 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 1 to 9 s (3 s by default), by
entering a 0 to 7-digit code, as programmed by the airline, followed by the '#' key.
It is also used to enter the 2 to 7-digit emergency code, followed by the '#' key, when the
flight crew does not respond.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A318/A319/A320/A321 FLEET DSC-25-11-20 P 3/4
FCOM 19 AUG 10
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 button 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
cabin crew is able to request emergency access to open the cockpit door.
2. The UNLOCK position overrides and resets any previous selection.
3. In case of an electrical supply failure, the cockpit door is automatically unlocked,
but remains closed.
(2) COCKPIT DOOR Fault Open indicator
OPEN light ON : The door is not closed, or not locked.
OPEN light
flashes
: The cabin crew has started an emergency access procedure. If there
is no reaction from the flight crew, the door will unlock at the end of the
adjustable time delay (15 to 120 s).
FAULT : This light comes on when a system failure has been identified
(Example : Latch, pressure sensors, control unit).
The inoperative item can be identified by checking the strike and
pressure sensor status lights on the CKPT DOOR CONT panel.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM -
COCKPIT DOOR LOCKING SYSTEM (CDLS)
A318/A319/A320/A321 FLEET DSC-25-11-20 P 4/4
FCOM 19 AUG 10
OVERHEAD CONTROL PANEL
The Cockpit Door Locking System's control panel is located on the overhead panel.
(1) Strikes' status lights
Off : The corresponding (upper, mid, or lower) locking latch is operative.
On : The corresponding (upper, mid, or lower) locking latch is faulty.
(2) Pressure sensor
Two redundant differential pressure sensors enable rapid pressure variation in the cockpit
to be detected, in order to command simultaneous opening of all latches when a defined
pressure drop is detected.
(3) Pressure sensor status lights
Off : The corresponding (1 or 2) pressure sensor is operative.
On : The corresponding (1 or 2) pressure sensor is faulty.
Note: These indicators enable the crew to identify the faulty item, when the Central
Pedestal Fault indicator light is ON.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM - COCKPIT
DOOR SURVEILLANCE SYSTEM (CDSS)
A318/A319/A320/A321 FLEET DSC-25-11-30 P 1/4
FCOM 19 AUG 10
GENERAL
Applicable to:
,
,
MSN,,,,
The Cockpit Door Surveillance system consists of three video cameras, which enable the flight crew
to identify persons prior to authorizing their entry into the cockpit. An LCD display, located on the rear
panel, shows the various camera views. It has automatic brightness adjustment and is activated by
the Cockpit Door Video pushbutton.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
EQUIPMENT
COCKPIT DOOR SECURITY SYSTEM - COCKPIT
DOOR SURVEILLANCE SYSTEM (CDSS)
A318/A319/A320/A321 FLEET DSC-25-11-30 P 2/4
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 3(11)
