more than 500 ft.min (152.39 m.min). On the MCDU (PDC indication):
-
the cabin differential pressure increases to 280 mbar (4.06 psi).
1EFF : ALL 1 05-53-00Page 514 1 1 May 01/05R 1 1 1CES 1
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4. Apply the leak-detection soap
solution to find leaks.
5. On the CABIN PRESS section of the
panel 25VU:
- with the MAN V/S CTL switch,
decrease the cabin differential
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)
(VSCB indication on the
MCDU).
R 6. After the cabin is fully
R depressurized, fully open the
R outflow valve (OVP indication on
the MCDU).
On the MCDU (VSCB indication):
-
the cabin vertical speed is 0. On the MCDU (PDC indication):
-
the cabin differential pressure is 280 mbar (4.06 psi).
Record possible leaks.
On the MCDU (VSCB indication):
-
the cabin vertical speed must not be
more than 500 ft.min (152.39 m.min). On the MCDU (PDC indication):
-
the cabin differential pressure decreases to 0.
5. Close-up
________
Subtask 05-53-00-865-071
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 05-53-00-860-055
B. Put the aircraft back to its initial configuration.
(1)
Stop 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:
-set the BEACON switch to OFF position.
(3)
Remove the safety plug from the pressure switch 16WR.
(a) In the avionics compartment:
-
remove the safety streamer from the safety plug.
-
remove the safety plug with its O-ring from the air inlet of the pressure switch 16WR.
(4)
Put the system and the aircraft back to the serviceable configuration.
(5)
Do the ADIRS stop procedure (Ref. TASK 34-10-00-860-005).
(6)
Do the EIS stop procedure (Ref. TASK 31-60-00-860-002).
(7)
De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
(8)
Remove the warning notices and the safety barriers.
TASK 05-53-00-780-002
Test for Leakage in the Repair Area at a Differential Pressure of 550 mbar (7.97 psi)
R R WARNING : MAKE SURE THAT:_______ - ONLY THE PERSONS NECESSARY FOR THE PRESSURIZATION TEST ARE IN THE AIRCRAFT DURING THE TEST. - THE PERSONS IN THE AIRCRAFT HAVE MEDICAL APPROVAL TO DO THIS TYPE OF TEST (REFER TO YOUR LOCAL REGULATION). BE CAREFUL WHEN YOU CONTROL THE PRESSURE. SUDDEN CHANGES IN PRESSURE CAN CAUSE PAIN AND INJURY.
WARNING : THERE MUST BE TWO PERSONS IN THE COCKPIT DURING THE PRESSURIZATION_______ TEST. IF A CHANGE IN PRESSURE HAS AN UNWANTED EFFECT (PAIN, NOISE IN THE EARS , HEADHACHE, OR OTHER) ON ONE PERSON, THE OTHER PERSON CAN ADJUST THE PRESSURE TO AVOID INJURY.
WARNING : DO NOT OPEN OR GO NEAR PRESSURE-SEALED DOORS WHEN THE AIRCRAFT IS_______ PRESSURIZED. A PRESSURE-SEALED DOOR THAT OPENS WHEN THE AIRCRAFT IS PRESSURIZED. - WILL CAUSE EXPLOSIVE DECOMPRESSION. - CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAUSE DAMAGE TO THE AIRCRAFT/EQUIPMENT.
WARNING : DO NOT OPEN THE DOORS WHILE THE RED WARNING LIGHT FLASHES. IF THE RED_______ WARNING LIGHT FLASHES, REMAINING PRESSURE COULD CAUSE THE DOOR TO OPEN SUDDENLY AND COULD : - KILL OR CAUSE SERIOUS INJURY TO PERSONS - CAUSE DAMAGE TO THE AIRCRAFT.
1. Reason for the Job__________________
To find possible leaks in the repair area after large structural repairs.
R R NOTE : The pressure test that follows is only necessary after the repair if____ the repair procedure in the SRM or in the repair instruction directly tells you to do it.
2. Job Set-up Information
______________________
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