(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).

 (3) Make sure that the access platform is in position.

 (4) Make sure that the blocker doors are deployed (Ref. TASK 78-32-41-860-001).

 (5) Make sure that the SAFETY SLEEVE - PIVOTING DOOR ACTUATOR (HIX3005) is on the blocker door actuator (Ref. TASK 78-32-41-480-001).

 Subtask 78-31-18-010-053
 B. Make sure that the fan cowl doors are open: (Ref. TASK 71-13-00-010-040) FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
 Subtask 78-31-18-040-052
 C. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
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 4. Procedure
_________ (Ref. Fig. 401/TASK 78-31-18-991-300) Subtask 78-31-18-420-050
 A. Installation of the blocker door stow-switch
 (1) Put the blocker door stow-switch on to the aft side of the forward frame.

 (2) Install the bolts and the nuts which attach the stow-switch.

 (3) TORQUE the bolts to between 61 and 70 lbf.in (0.68 and 0.79 m.daN).

 (4) Apply sealant: WARNING : BEFORE THE USE OF SOLVENT, PROTECTIVE FILM OR SEALANT

_______ CAREFULLY READ THE APPLICABLE "MATERIAL SAFETY DATA SHEET" AND FOLLOW ALL LISTED SAFETY AND HEALTH PRECAUTIONS. USE THESE PRODUCTS IN AN AREA OPENED TO THE AIR AND WEAR PROTECTION GLOVES. THESE PRODUCTS ARE FLAMMABLE AND VAPOR IS DANGEROUS. THEY MAY CAUSE IRRITATION OF EYES, NOSE, THROAT AND SKIN. HIGH CONCENTRATIONS MAY CAUSE WEAKNESS, HEADACHE, NAUSEA, DIZZINESS AND IMPAIRED JUDGEMENT.
 (a) Apply RTV 106 (Material No. CP2267) between the stow-switch and the forward frame.
 (5) Connect the electrical harness on to the connector of the blocker door stow-switch.

 (6) Tighten the coupling nut of the stow-switch connector with the softnose pliers.

 5. Close-up
________ Subtask 78-31-18-080-050
 A. Remove the safety sleeve (HIX-3005) from the blocker door actuator
 (Ref. TASK 78-32-41-080-040).

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 B. Move the blocker doors : CAUTION : BLOCKER DOOR LATCH MUST BE OPENED WHEN YOU CLOSE THE BLOCKER
_______
 DOOR OR DAMAGE CAN OCCUR.

 (1) Manually move the blocker doors to the closed position (Ref. TASK 78-32-41-860-002).
 Subtask 78-31-18-440-050
 C. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041). Subtask 78-31-18-410-050
 D. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.

 (2) Close the fan cowl doors: (Ref. TASK 71-13-00-410-040)
 FOR 1000EM1
 437AL, 438AR
 FOR 1000EM2
 447AL, 448AR

 (3) Remove the access platform(s).

 (4) Remove the warning notice(s). Subtask 78-31-18-710-050
 E. Do an operational test of the thrust reverser system from the CFDS
 (Ref. TASK 78-31-00-710-042)

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_______________________________________________________________________________
 TASK 78-31-18-210-001
 Detailed Visual Inspection of the Stow-switches
 (4104ks1,4104ks2,4104ks3,4104ks4)
 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.)
 HIX3005 1 SAFETY SLEEVE - PIVOTING DOOR ACTUATOR

 B. Referenced Information
 -------------------------------------------------------------------------------
　
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