- 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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