DOC AIRBUS | AMM A320FDOOR WARNING - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
1. General
The door warning system tells the crew that:
** ON A/C NOT FOR ALL The door warning system tells the crew that:
- The doors are open or closed.
- A person tries to open a door or an emergency exit door when the emergency escape slide is armed.
- A person tries to open a door when there is too much pressure in the cabin, the engines are de-energized and the emergency escape slide is disarmed.
2. Component Location
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL A. Passenger/Crew Doors
- Forward passenger-door warning (zones 831 and 841) (Ref. AMM D/O 52-71-00-00)
- Aft passenger-door warning (zones 832 and 842) (Ref. AMM D/O 52-71-00-00)
- Emergency escape-slide release and overpressure warning systems (zones 831, 841, 832 and 842) (Ref. AMM D/O 52-73-00-00).
B. Emergency Exits
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL
CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL CABIN PRESSURE Warning-Light Panel and SLIDE ARMED Indicator Light ** ON A/C NOT FOR ALL - Left emergency-exit warning (zone 241) (Ref. AMM D/O 52-71-00-00)
- Right emergency-exit warning (zone 242) (Ref. AMM D/O 52-71-00-00)
- Emergency escape-slide release and overpressure warning systems (zones 241 and 242) (Ref. AMM D/O 52-73-00-00).
- Left emergency-exit warning (zones 833 and 834) (Ref. AMM D/O 52-71-00-00)
- Right emergency-exit warning (zones 843 and 844) (Ref. AMM D/O 52-71-00-00)
- Emergency escape-slide release and overpressure warning systems (zones 833, 834, 843 and 844) (Ref. AMM D/O 52-73-00-00).
- Left emergency-exit warning (zone 835) (Ref. AMM D/O 52-71-00-00)
- Right emergency-exit warning (zone 845) (Ref. AMM D/O 52-71-00-00)
- Emergency escape-slide release and overpressure warning systems (zones 241, 242, 835 and 845) (Ref. AMM D/O 52-73-00-00).
C. Avionics Compartment Doors
- Forward avionics-compartment-door warning (zone 120) (Ref. AMM D/O 52-71-00-00)
- Left avionics-compartment-door warning (zone 125) (Ref. AMM D/O 52-71-00-00)
- Right avionics-compartment-door warning (zone 126) (Ref. AMM D/O 52-71-00-00)
- Aft avionics-compartment-door warning (zone 128) (Ref. AMM D/O 52-71-00-00).
D. Cargo Doors
- Forward cargo-compartment-door warning (zone 825) (Ref. AMM D/O 52-71-00-00)
- Aft cargo-compartment-door warning (zone 152) (Ref. AMM D/O 52-71-00-00).
3. Description
Door Warning Schematic ** ON A/C NOT FOR ALL
Door Warning Schematic ** ON A/C NOT FOR ALL
Door Warning Schematic ** ON A/C NOT FOR ALL
All the data about the passenger/crew doors, the emergency exit doors and the avionics and cargo compartment doors and the escape slide arming are sent to the ECAM system with the proximity switches. When the cabin pressure level is higher than the external atmospheric pressure level (or more than 2.5 mbar (0.04 psi)), a discrete signal is sent to the ECAM system.
SDAC1 and SDAC2 collect the data about the passenger/crew doors, the emergency exit doors and the avionics compartment doors.
LGCIU1 collects the data about the cargo compartment doors and sends them to FWC1 and FWC2 with the ARINC 429 busbar.
The SLIDE ARMED indicator light comes on when:
** ON A/C NOT FOR ALL Door Warning Schematic ** ON A/C NOT FOR ALL Door Warning Schematic ** ON A/C NOT FOR ALL Door Warning Schematic ** ON A/C NOT FOR ALL SDAC1 and SDAC2 collect the data about the passenger/crew doors, the emergency exit doors and the avionics compartment doors.
LGCIU1 collects the data about the cargo compartment doors and sends them to FWC1 and FWC2 with the ARINC 429 busbar.
The SLIDE ARMED indicator light comes on when:
- A person tries to open a passenger/crew door or an emergency exit door.
- The escape slide is in the armed position.
- The oil pressure of the two engines decreases
- The escape slide is in the disarmed position and
- The cabin pressure level is higher than the external atmospheric pressure (or more than 2.5 mbar (0.04 psi)).
4. Operation
Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL
All the signals from the doors are sent to the lower ECAM Display Unit (DU) and shown in amber.
If the signals are sent for a longer period, an aural warning starts and the MASTER CAUT lights come on.
Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL Door Indications on the ECAM DUs ** ON A/C NOT FOR ALL If the signals are sent for a longer period, an aural warning starts and the MASTER CAUT lights come on.