- if not, you may want to take the opportunity of full access to the stage 4 blades and do the manual check shown in sheet 1. (Ref. Fig. 604/TASK 72-54-00-991-303) Do the check on at least 2 blades in each quadrant to make a good evaluation of the pretwist characteristic.

 Subtask 72-54-00-410-086
 C. Install the Exhaust Components Removed for Access to the Inspection Area
 (1) Install the centerbody (Ref. TASK 78-11-12-400-041).

 (2) Install the core nozzle assembly (Ref. TASK 78-11-11-400-041).

 5. Close-up________
 Subtask 72-54-00-410-087
 A. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.

 (2) Close the thrust reverser doors (Ref. TASK 78-36-00-410-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR

 Subtask 72-54-00-440-063
 B. Make the thrust reverser serviceable (Ref. TASK 78-30-00-081-041).
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 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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 1. Reason for the Job
__________________
 This TASK is applicable for NON /P engines.
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice
 B. 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 72-00-00-200-025 Over-Serviceable-Limit Extensions 78-30-00-081-041 Make the Thrust Reverser Serviceable after
 Maintenance 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance 78-36-00-010-040 Opening of the Thrust Reverser Doors 78-36-00-410-040 Closing of the Thrust Reverser Doors
 3. Job Set-up
__________ Subtask 72-54-00-941-060
 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 72-54-00-010-073
 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) Let the temperature of parts decrease to ambient temperature.

 Subtask 72-54-00-040-060
 C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
 Subtask 72-54-00-010-079
 D. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040):
 FOR 1000EM1
 451AL, 452AR
 FOR 1000EM2
 461AL, 462AR

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_________ Subtask 72-54-00-210-052
 A. Inspect the Turbine Case for the Following
 -------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. Aft flange.
 A. Cracks that connect bolt holes.
 B. Cracks that extend from bolt holes to outer edge of flange.
　
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