(1) Move the blocker doors to the closed position manually (Ref. TASK 78-32-41-860-002).
 Subtask 78-31-19-440-052
 D. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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 E E Feb 01/98 E E ECES E Subtask 78-31-19-410-054

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 E. 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).

 (3) Remove the access platform(s).

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 E E Feb 01/98 E E ECES E ACTUATOR - BLOCKER DOOR (3001KM1,3001KM2,3001KM3,3001KM4)

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_________________________________________________________ REMOVAL/INSTALLATION
____________________
 TASK 78-31-41-000-001
 Removal of the Blocker Door Hydraulic Actuator (3001KM1,3001KM2,3001KM3, 3001KM4)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs No specific warning notice No specific access platform 1 m (3 ft. 3 in.) HIX3002 1 HOLD, OPEN ROD - PIVOTING DOOR
 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 78-32-41-860-001 Manual Deployment of the Blocker Door 78-36-00-010-040 Opening of the Thrust Reverser Doors 78-31-41-991-301 Fig. 401 78-31-41-991-302 Fig. 402 78-31-41-991-303 Fig. 403
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 3. Job Set-up
__________ Subtask 78-31-41-941-050
 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.

 (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 78-31-41-010-050
 B. Get Access
 (1) Open the fan cowls doors (Ref. TASK 71-13-00-010-040):
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 (2) Put the access platform in position on the right side of the engine. Subtask 78-31-41-040-050
 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
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 E E Feb 01/98 E E ECES E 4. Procedure

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_________ (Ref. Fig. 401/TASK 78-31-41-991-301, 402/TASK 78-31-41-991-302, 403/TASK 78-31-41-991-303) Subtask 78-31-41-010-051
 A. Removal for Access
 (1) For the lower blocker door, remove the clevis access door as follows:

 (a) Remove the three screws.

 (b) Remove the access door.

 (2) For the upper blocker door, remove the clevis access door as follows:

 (a) Remove the eight screws.
 (b) Remove the access door. Subtask 78-31-41-020-054
 B. Removal of the Hydraulic Actuator Clevis
 (1) Remove the hydraulic actuator clevis from the blocker door.
 (a) Remove the four bolts and the washers which attach the clevis on the blocker door.
 Subtask 78-31-41-010-052
 C. Get Access
 (1) Open the thrust reverser cowl doors (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
 Subtask 78-31-41-860-050
 D. Manual Deployment of the Blocker Door
 CAUTION : YOU MUST HOLD THE END OF THE HYDRAULIC ACTUATOR WHEN YOU
　
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