Subtask 36-11-00-941-093
B. Safety Precautions
(1)
Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(2)
On the ENG control panel 115VU:
-Put a warning notice. in position to tell persons not to start the engine 1(2).
(3)
On the ENG section of the maintenance panel 50VU:
-Make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
-Put a warning notice in position to tell persons not to energize the FADEC 1(2).
Subtask 36-11-00-865-077
C. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU AIR BLEED/X FEED/VALVE/BAT 2HV D13 49VU AIR BLEED/ENG 1/CTL 3HA1 D12 49VU AIR BLEED/ENG 1/MONG 2HA1 D11 122VU AIR BLEED/ENG 2/CTL 3HA2 Z23 122VU AIR BLEED/ENG 2/MONG 2HA2 Z22 122VU AIR BLEED/X FEED VALVE/NORM 1HV Z20
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
Subtask 36-11-00-860-068
D. Aircraft Maintenance Configuration
(1)
Do the EIS start procedure (SD DU only) (Ref. TASK 31-60-00-860-001).
(2)
On the AIR COND control panel 30VU:
-
Make sure that the PACK 1 and PACK 2 pushbutton switches are released (the OFF legends are on).
-
Make sure that the PACK FLOW selector switch is set to LO.
-
Make sure that the ENG BLEED pushbutton switches are released (the OFF legends are ON).
-
Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
-Set the X BLEED selector switch to the OPEN position.
(3)
On the ANTI ICE section of the panel 25VU:
-Make sure that the ANTI ICE/WING pushbutton switch is released (the ON legend is OFF).
**ON A/C 301-399,
Subtask 36-11-00-860-068-A
D. Aircraft Maintenance Configuration
(1)
Do the EIS start procedure (SD DU only) (Ref. TASK 31-60-00-860-001).
(2)
On the AIR COND control panel 30VU:
-
Make sure that the PACK 1 and PACK 2 pushbutton switches are released (the OFF legends are on).
-
Make sure that the ECON FLOW pushbutton switch is pushed (the ON legend is on).
-
Make sure that the ENG BLEED pushbutton switches are released (the OFF legends are ON).
-
Make sure that the APU BLEED pushbutton switch is released (the ON legend is off).
-Set the X BLEED selector switch to the OPEN position.
(3)
On the ANTI ICE section of the panel 25VU:
-Make sure that the ANTI ICE/WING pushbutton switch is released (the ON legend is OFF).
**ON A/C ALL
Subtask 36-11-00-010-079
E. Get access
(1)
Put the access platform in position at the related pylon access panel.
(2)
Remove these access panels:
-
For the left pylon:
414FR
-
For the right pylon:
423FL.
Subtask 36-11-00-480-050
F. Preparation for the Leak Check
(1)
Connect the ground air-supply unit to the HP ground connector 7300HM.
(2)
On the ECAM control panel, push the BLEED key.
-On the SD, the BLEED page comes into view.
(3)
Start the ground air-supply unit and make sure that the supplied air pressure is not more than 40 psi (2.76 bar).
4. Procedure
_________ (Ref. Fig. 506/TASK 36-11-00-991-029) Subtask 36-11-00-790-052
A. Perform Leak Check on the Combo Seals on the Pylon Duct Sleeves
(Downstream Precooler)
(1)
On the BLEED page of the SD:
-
Make sure that the bleed valves are shown closed and are in green.
-
Make sure that the crossbleed valve is shown open and is in green.
(2)
Make sure that there are no leaks at the combo seals of the pylon duct sleeves (1).
(3)
Stop the ground air-supply unit.
5. Close-up
________ Subtask 36-11-00-860-070
A. Put the aircraft back to its initial configuration.
(1)
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