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ACTION RESULT -------------------------------------------------------------------------------
NOTE : The cabin vertical speed
____ must not be more than 500 ft.min (152.39 m.min).
-stop when you get a pressure of value A (Pamb + 280 mbar (4.06 psi)).
3. With the MAN/V/S CTL switch in the UP or DN position, keep the pressure stable at value A (Pamb
+ 280 mbar (4.06 psi)) for 5 minutes.
4. Use the same method as in step 2 to increase cabin pressure to value B (Pamb + 580 mbar (8.41 psi)).
NOTE : the cabin vertical speed
____ must not be more than 500 ft.min (152.39 m.min).
5. With the MAN/V/S CTL switch in the UP or DN position, keep the pressure stable at value B (Pamb
+ 580 mbar (8.41 psi)).
6. On the AIR COND panel 30VU:
-release the PACK 1 pushbutton
switch. On the CABIN PRESS section of the panel 25VU:
-with the MAN/V/S CTL switch, keep the pressure stable at value B (Pamb + 580 mbar (8.41 psi)).
7. On the CABIN PRESS section of the panel 25VU:
Tell ground personnel to walk around
the aircraft and do a check for
leakage.
On the vertical speed indicator:
-
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 bemore than 500 ft.min (152.39 m.min).
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 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 theCAB PRESS page:
R 1EFF : 151-199, 401-499, 1 05-53-00Page 544 1 1 Aug 01/05 1 1 1CES 1
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ACTION RESULT -------------------------------------------------------------------------------
- with the MAN/V/S CTL switch in - the outflow valve is in the fully
DN position, fully close the closed position.
outflow valve. On the AIR COND panel 30VU:
On the AIR COND panel 30VU: - the OFF legend of the PACK 2
- release the PACK 2 pushbutton pushbutton switch comes on.
switch when the outflow valve On the pressure indicator:
is closed. - the cabin pressure indication
decreases.
8. Monitor the pressure decrease:
- at value C (Pamb + 560 mbar
(8.12 psi)), start the
stop-watch.
- at value D (Pamb + 550 mbar
(7.97 psi)), stop the
stop-watch and write the time.
9. Calculate the leakage rate:
- Leakage rate = (value C) -
(value D) / time
The leakage rate is permitted
if less than 0.9 mbar/s (0.78
PSI/min)
On the AIR COND panel 30VU: On the vertical speed indicator:
- push the PACK 1 and PACK 2 - the cabin vertical speed must not be
pushbutton switches (the OFF more than 500 ft.min (152.39 m.min).
legend is off). On the pressure indicator:
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.
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