A. Energize the ground service network
 (Ref. TASK 24-42-00-861-001).
 Subtask 54-51-21-941-050
 B. Safety Precautions
 (1)
 On the center pedestal, on the ENG panel 115VU:
(a) Put a warning notice to tell persons not to start the engine.
 (2)
 Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
 (3)
 On the overhead maintenance panel 50VU:
 (a)
 Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
 (b)
 Put a warning notice to tell persons not to energize the FADEC 1(2).
 Subtask 54-51-21-040-050
 C. Deactivation of the Thrust Reverser WARNING : MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE
_______ THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
 (1) Make the thrust reverser unserviceable for maintenance (Ref. TASK 78-
30-00-481-041).
 Subtask 54-51-21-010-050
 D. Get Access
 (1) Put an ACCESS PLATFORM 2M (6 FT) in position:
 (a)
 At zone 410 for the left pylon,
 (b)
 At zone 420 for the right pylon.
 4. Procedure
_________ R **ON A/C 001-049, 051-099, 101-105, 151-154, 201-207,
 Subtask 54-51-21-020-050
 A. Removal of the Pylon Lateral Access-Doors
 (Ref. Fig. 401/TASK 54-51-21-991-001)
 (1) Remove the pylon lateral access-door 415BL. NOTE : The procedure is the same for the pylon lateral access-doors
____
 415BR, 425BL and 425BR.
 (a) Hold the access-door (1) and remove the screws (3), the washers
 (2) and the access-door (1).
 (2) Remove the pylon lateral access-door 415AL. NOTE : The procedure is the same for the pylon lateral access-doors
____
 415AR, 425AL and 425AR.
(a) Hold the access-door (5) and remove the screws (4) and the access-door (5).
 Pylon Lateral Access-Doors
 Figure 401/TASK 54-51-21-991-001
R 1EFF : 001-049, 051-099, 101-105, 151-154, 1 54-51-21Page 404 1201-207, 1May 01/05 1 1 1CES 1R **ON A/C 106-149, 155-199, 208-299, 301-399, 401-499,
 Subtask 54-51-21-020-050-A
 A. Removal of the Pylon Lateral Access-Doors
 (Ref. Fig. 401A/TASK 54-51-21-991-001-A)
 (1) Remove the pylon lateral access-door 415BL. NOTE : The procedure is the same for the pylon lateral access-doors
____
 415BR, 425BL and 425BR.
 (a)
 Hold the access-door (3) and remove the screws (1) and the washers (2).
 (b)
 Remove the spring pin (5), the captive screw (6), the washer (4) and the access-door (3).
 (2) Remove the pylon lateral access-door 415AL. NOTE : The procedure is the same for the pylon lateral access-doors
____
 415AR, 425AL and 425AR.
 (a) Hold the access-door (8) and remove the screws (7) and the access-door (8). 
R 1EFF : 106-149, 155-199, 208-299, 301-399, 1 54-51-21Page 405 1401-499, 1Aug 01/05 1 1 1CES 1
 Pylon Lateral Access-Doors
 Figure 401A/TASK 54-51-21-991-001-A
R 1EFF : 106-149, 155-199, 208-299, 301-399, 1 54-51-21Page 406 1401-499, 1Aug 01/05 1 1 1CES 1
**ON A/C ALL
 TASK 54-51-21-400-001
 Installation of the Pylon Lateral Access-Doors
 WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______
 START A TASK ON OR NEAR:
 -
THE FLIGHT CONTROLS
 -
THE FLIGHT CONTROL SURFACES
 -
THE LANDING GEAR AND THE RELATED DOORS
 -COMPONENTS THAT MOVE.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
 -------------------------------------------------------------------------------
R No specific Torque Wrench : range 0.00 to 1.20 m.daN 
R (0.00 to 9.00 lbf.ft) No specific Torque Wrench : range 0.20 to 3.60 m.daN
 (2.00 to 26.00 lbf.ft)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 78-30-00-081-041 Make the Thrust Reverser Serviceable after Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance
 
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