-
the cabin vertical speed is 0. On the pressure indicator:
-
the cabin pressure is value A (Pamb + 280 mbar (4.06 psi)).
On the pressure indicator:
-
the cabin pressure increases to value
B (Pamb + 580 mbar (8.41 psi)). On the vertical speed indicator:
-
the cabin vertical speed must not be more than 500 ft.min (152.39 m.min).
-
the cabin vertical speed is 0.
On the vertical speed indicator.
R 1EFF : 301-399, 1 05-53-00Page 547 1 1 May 01/04 1 1 1CES 1
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
R pressure stable at value B (Pamb
R + 580 mbar (8.41 psi)).
R
R 6. On the AIR COND panel 30VU:
R - release the PACK 1 pushbutton
R switch.
R On the CABIN PRESS section of the
R panel 25VU:
R - with the MAN/V/S CTL switch,
R keep the pressure stable at
R value B (Pamb + 580 mbar (8.41
R psi)).
R 7. On the CABIN PRESS section of the
R panel 25VU:
R - with the MAN/V/S CTL switch in
R DN position, fully close the
R outflow valve.
R On the AIR COND panel 30VU:
R - release the PACK 2 pushbutton
R switch when the outflow valve
R is closed.
R
R 8. Monitor the pressure decrease:
R - at value C (Pamb + 560 mbar
R (8.12 psi)), start the
R stop-watch.
R - at value D (Pamb + 550 mbar
R (7.97 psi)), stop the
R stop-watch and write the time.
R 9. Calculate the leakage rate:
R - leakage rate = (value C) -
R (value D) / time
R The leakage rate is permitted
R if less than 0.64 mbar/s (0.56
R PSI/min)
R On the AIR COND panel 30VU:
R - push the PACK 1 and PACK 2
R pushbutton switches (the OFF
R legend is off).
On the pressure indicator:
-
the cabin pressure is value B (Pamb + 580 mbar (8.41 psi)).
On the AIR COND panel 30VU:
-
the OFF legend of the PACK 1
pushbutton switch comes on. On the vertical speed indicator:
-
the cabin vertical speed is 0. On the pressure indicator:
-
the cabin pressure is value B (Pamb + 580 mbar (8.41 psi)).
On the lower ECAM display unit, on the CAB PRESS page:
-
the outflow valve is in the fully
closed position. On the AIR COND panel 30VU:
-
the OFF legend of the PACK 2
pushbutton switch comes on. On the pressure indicator:
-
the cabin pressure indication decreases.
On the vertical speed indicator:
-the cabin vertical speed must not be
more than 500 ft.min (152.39 m.min). On the pressure indicator:
R 1EFF : 301-399, 1 05-53-00Page 548 1 1 May 01/04 1 1 1CES 1
-------------------------------------------------------------------------------ACTION RESULT
-------------------------------------------------------------------------------On the CABIN PRESS section of the - the cabin pressure indication panel 25VU: decreases to the external ambient
-with the MAN V/S CTL switch, pressure.
decrease the cabin pressure
until you get a differential
pressure of 0 psi.
NOTE : The cabin vertical speed
____
must not be more than 500
ft.min (152.39 m.min).
10. Wait until the cabin is fully
depressurized then fully open
the outflow valve.
**ON A/C ALL
5. Close-up
________
Subtask 05-53-00-865-069
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R **ON A/C 062-099, 106-149, 151-199, 201-299, 301-399, 401-499,
122VU DOORS/PAX/MONG 1MQ T13
**ON A/C ALL
Subtask 05-53-00-860-061
B. Put the aircraft back to its initial configuration.
(1)
Shut down the APU (Ref. TASK 12-33-21-618-001) or stop the HP ground-air supply unit (Ref. TASK 12-33-21-618-001).
(2)
On the EXT LT section of the panel 25VU:
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