4. Procedure
_________
 (Ref. Fig. 401/TASK 36-11-49-991-300) Subtask 36-11-49-020-050
 A. Removal of the Pylon Interface Duct
 (1)
 Remove the coupling (5) that connects the pylon interface duct (15) to the pylon duct.

 (2)
 Remove the coupling (25) and the E-seal (10) that connect the pylon interface duct (15) to the bleed pressure regulator valve (20).

 (3)
 Remove the pylon interface duct (15) from the engine.

 (4)
 Put blanking plugs on the two ends of the pylon interface duct (15).

 (5)
 Put blanking plugs on the pylon duct and the bleed pressure regulator valve (20).

 Pylon Interface Duct
 Figure 401/TASK 36-11-49-991-300
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 TASK 36-11-49-400-042
 Installation of the Pylon Interface Duct
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific air supply source 30 psi (2.07 bar)
 No specific fiber hammer
 No specific warning notice
 No specific access platform 0.5 m (1 ft. 8 in.)

 B. Expendable Parts
 -------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
 -------------------------------------------------------------------------------
R 10 E-seal 36-11-52 02 -040 R 10 E-seal 36-11-52 02 -040A
 C. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied
 from the External Power
 71-13-00-010-040 Opening of the Fan Cowl Doors
 71-13-00-410-040 Closing of the Fan Cowl Doors
 78-30-00-081-041 Make the Thrust Reverser Serviceable after

 Maintenance
 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance
 78-36-00-010-040 Opening of the Thrust Reverser Doors

 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
78-36-00-410-040 Closing of the Thrust Reverser Doors 36-11-49-991-300 Fig. 401
 3. Job Set-up
__________
 Subtask 36-11-49-860-059
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).

 (2)
 Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.

 (3)
 On the AIR COND panel 30VU:

 -
Make sure that the ENG 1(2) BLEED pushbutton switch is released (the OFF legend is on),

 -
Make sure that the APU BLEED pushbutton switch is released (the ON legend is off),

 -
Make sure that the warning notice to tell persons not to operate the pneumatic system is in position.

 (4)
 On the ENG panel 115VU:

 -Make sure that the warning notice to tell persons not to start the engine 1(2) is in position.

 (5)
 On the HP ground connector:

 -Make sure that the warning notice to tell persons not to pressurize the pneumatic system is in position.

 (6)
 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,

 -
Make sure that the warning notice to tell persons not to energize the FADEC 1(2) is in position.

 (7)
 Make sure that the access platform is in position below the engine.

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 Subtask 36-11-49-010-074

 B. Get Access
 (1)
　
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