(3) Remove the access platform(s).

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 B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 78-31-16-410-052
 C. Close Access
 (1) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR

 (2) Remove the warning notice(s).

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 SWITCH - BLOCKER DOOR DEPLOY (4103KS1,4103KS2) - REMOVAL/INSTALLATION
_____________________________________________________________________ TASK 78-31-17-000-001 Removal of the Blocker Door Deploy Switch (4103KS1,4103KS2)
 1. Reason for the Job

__________________
 Self Explanatory

 2. Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific softnose pliers No specific warning notice No specific access platform 1 m (3 ft. 3 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
71-13-00-010-040 Opening of the Fan Cowl Doors 78-30-00-481-041 Make the Thrust Reverser Unserviceable for Maintenance 78-31-17-991-301 Fig. 401
 3. Job Set-up
__________ Subtask 78-31-17-941-050
 A. 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.

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 (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 78-31-17-010-050
 B. Get Access
 (1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 (2) Put the access platform in position in the right side of engine.
 Subtask 78-31-17-040-050

 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 4. Procedure
_________
 (Ref. Fig. 401/TASK 78-31-17-991-301)
 Subtask 78-31-17-020-050

 A. Removal of the Blocker Door Deploy Switch
 (1) Remove the screws which attach the deploy switch access door.

 (2) Remove the deploy switch access door.

 (3) Remove the four bolts which attach the blocker door deploy switch.

 (4) Loosen the coupling nuts of the deploy switch connectors with softnose pliers.

 (5) Disconnect the beam electrical harness from the blocker door deploy switch.

 (6) Remove the blocker door deploy switch.

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R Blocker Door Switch, Actuation Levers and Beam Electrical Harness Figure 401/TASK 78-31-17-991-301- 12 (SHEET 1)
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R Blocker Door Switch, Actuation Levers and Beam Electrical Harness Figure 401/TASK 78-31-17-991-301- 22 (SHEET 2)
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 Installation of the Blocker Door Deploy Switch (4103KS1,4103KS2)
　
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