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 4. Procedure
_________ (Ref. Fig. 501/TASK 78-32-41-991-311) Subtask 78-32-41-220-050 R A. Measure the mismatch space between the blocker door and the fan cowl.
 (1) If the blocker door is in negative step, the mismatch space must be R less than 0.118 in. (3.0 mm). If the measure is not in the R permissible limits, go to step B.

 (2) If the blocker door is in positive step, the mismatch space must be R less than 0.047 in. (1.2 mm). If the measure is not in the R permissible limits, go to step B.

 (3) If the mismatch space is correct go to close-up.
 Subtask 78-32-41-820-050

 B. Adjust the latch fittings on the blocker doors NOTE : Apply a witness line of finish paint EA4 Blue 5991 (Material No.
____ CP2245) on all nuts and connections when you have done the check of their torques.
R (1) Open the fan cowl door (Ref. TASK 71-13-00-010-040).
R (2) Manually move the blocker door to the open position (Ref. TASK 78-32-41-860-001) .
R (3) Loosen four bolts that attach the latch fitting to the thrust reverser frame.
R (4) If the blocker door is in positive step, pull up the latch fitting the needed number of teeth to remove the mismatch. One tooth corresponds to 0.75 mm (0.03 in.).
R (5) If the blocker door is in negative step, push down the latch fitting
 the needed number of teeth to remove the mismatch.
R (6) TORQUE the bolts to between 70 and 80 lbf.in (0.79 and 0.90 m.daN).
R (7) Close the blocker door: CAUTION : BLOCKER DOOR LATCH MUST BE OPENED WHEN YOU CLOSE THE
_______
 BLOCKER DOOR OR DAMAGE CAN OCCUR.

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 Blocker Doors Adjustment
 Figure 501/TASK 78-32-41-991-311- 12 (SHEET 1)
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 Blocker Doors Adjustment
 Figure 501/TASK 78-32-41-991-311- 22 (SHEET 2)
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 (a) Manually move the blocker door to the closed position (Ref. TASK 78-32-41-860-002). 
R  (8) Close the fan cowl door (Ref. TASK 71-13-00-410-040). 
R  (9) Do step 4.A. again.
 5. Close-up________
 Subtask 78-32-41-440-051
 A. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
 Subtask 78-32-41-410-051
 B. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items. 
R  (2) Close the fan cowl door (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).

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 DOOR - BLOCKER - INSPECTION/CHECK

_________________________________
 TASK 78-32-41-210-002
 Detailed Visual Inspection of the Blocker Door
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific warning notice
 No specific access platform 1 m (3 ft. 3 in.)
 HIX3005 2 SAFETY SLEEVE - PIVOTING DOOR ACTUATOR

 B. Consumable Materials
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
Material No. CP2517  *
 aerodynamic tape (Ref. 70-30-00)

 C. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
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
　
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