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SPECIAL OPERATIONS
FLIGHT WITHOUT CABIN PRESSURIZATION
A318/A319/A320/A321 FLEET PRO-SPO-20 P 4/18
FCOM 19 AUG 10
SYSTEMS
Applicable to: ALL
FAILURE OCCURRING IN FLIGHT
Apply the abnormal and emergency procedures required by ECAM.
FAILURE PRESENT AT DISPATCH
If flight with both packs inoperative
PACK 1 and 2.......................................................................................................................OFF
RAM AIR............................................................................................................................... ON
Note: If the "AVIONICS SMOKE" procedure has to be applied, the following flight time
limitations have to be considered to protect the avionic equipment :
At ISA +40 : 0.5 h
At ISA +30 : 1.5 h
At ISA +20 : 4 h
At ISA +10 and below : No limitation.
Between FL 80 and FL 150, oxygen must be provided for 2 % of the passengers.
This is provided by the portable oxygen system. When it is no longer available,
descend to FL 80. For performance at FL 80/250 kt : Use data for FL 100/LRC
(Refer to PER-CRZ-AEO-CRT-30 LONG RANGE CRUISE - ISA) and increase fuel
consumption by 6 %.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
FLIGHT WITHOUT CABIN PRESSURIZATION
A318/A319/A320/A321 FLEET PRO-SPO-20 P 5/18
FCOM 19 AUG 10
If both CAB PRESS systems are inoperative, or if there is structural damage :
PACK 1 and 2.........................................................................................................................ON
MODE SEL...........................................................................................................................MAN
V/S CTL....................................................................................................................... AS RQRD
Use V/S CTL to set the outflow valve opening to 50 %.
OUTFLOW VALVE HALF OPEN.....................................................................................CHECK
The outflow valve opening is limited to 50 %, to prevent the cabin air suction effect.
MAX FL.....................................................................................................................100 or MSA
TAKEOFF
Limit the aircraft's rate of climb to about 500 ft/min.
CLIMB
Note: The EXCESS CAB ALT warning may occur.
Use the ECAM CLR pushbutton to clear the warning.
DESCENT
Limit the aircraft's rate of descent to about 1 000 ft/min. Perform the final approach normally.
PERFORMANCE DATA
Applicable to: MSN,
4473
The following table enables the fuel consumption and the time needed from takeoff to landing to be
determined in case of flight without cabin pressurization.
The table is established for :
‐ Takeoff
‐ Climb from 1 500 ft at 250 kt
‐ Long range cruise speed at FL 100
‐ Descent to 1 500 ft at 250 kt
‐ Approach and landing : IMC procedure 120 kg or 260 lb (6 min)
‐ ISA temperature
‐ CG = 25 %
‐ Normal air conditioning
‐ Anti ice OFF
The table (Refer to PRO-SPO-20 GROUND DISTANCE/AIR DISTANCE CONVERSION) gives the
conversion from ground distance to air distance
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
PROCEDURES
SPECIAL OPERATIONS
FLIGHT WITHOUT CABIN PRESSURIZATION
A318/A319/A320/A321 FLEET PRO-SPO-20 P 6/18
FCOM 19 AUG 10
Note: For each degree Celcius above ISA temperature apply a correction of 0.01 (kg/°C/NM) or
0.022 (lb/°C/NM).
PERFORMANCE DATA
Applicable to: ,
, MSN,,
The following table enables the fuel consumption and the time needed from takeoff to landing to be
determined in case of flight without cabin pressurization.
The table is established for :
‐ Takeoff
‐ Climb from 1 500 ft at 250 kt
‐ Long range cruise speed at FL 100
‐ Descent to 1 500 ft at 250 kt
‐ Approach and landing : IMC procedure 140 kg or 310 lb (6 min)
‐ ISA temperature
‐ CG = 25 %
‐ Normal air conditioning
‐ Anti ice OFF
The table (Refer to PRO-SPO-20 GROUND DISTANCE/AIR DISTANCE CONVERSION) gives the
conversion from ground distance to air distance
Note: For each degree Celcius above ISA temperature apply a correction of 0.01 (kg/°C/NM) or
0.022 (lb/°C/NM).
PERFORMANCE DATA
Applicable to:
The following table enables the fuel consumption and the time needed from takeoff to landing to be
determined in case of flight without cabin pressurization.
The table is established for :
‐ Takeoff
‐ Climb from 1 500 ft at 250 kt
‐ Long range cruise speed at FL 100
‐ Descent to 1 500 ft at 250 kt
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 14(15)
