-------------------------------------------------------------------------------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 72-54-00-991-300 Fig. 601 72-54-00-991-301 Fig. 602 72-54-00-991-302 Fig. 603
3. Job Set-up
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Subtask 72-54-00-941-056
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).
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Subtask 72-54-00-010-066
B. Get Access
(1) Open the fan cowl doors (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
Subtask 72-54-00-040-056
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 72-54-00-010-075
D. Open the thrust reverser doors (Ref. TASK 78-36-00-010-040):
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
4. Procedure
_________
(Ref. Fig. 601/TASK 72-54-00-991-300, 602/TASK 72-54-00-991-301, 603/TASK 72-54-00-991-302)
Subtask 72-54-00-010-067
A. Removal of Borescope Plugs
(1) Let the temperature of parts decrease to ambient temperature. R R PRE SB CFMI 72-0376 R
(2) Cut and remove the lockwires. Then, remove the borescope plugs S16, S17, S18, S19 and S20.
NOTE : The borescope plugs S16 and S17 are in the same plane and
____ located, respectively, at 5:30 and 8:30 (ALF) immediately in front of the combustion case aft flange. The borescope plugs S18, S19 and S20 are located approximately at 5:00 o'clock (ALF) on the LPT case and, from front to rear, relate to the 2nd, 3rd and 4th stages of the LPT, respectively.
R
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R Location of the Borescope Ports and Possible Borescope Access Via One
R Instrumentation Boss
R Figure 601/TASK 72-54-00-991-300- 14 (SHEET 1)
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R Location of the Borescope Ports and Possible Borescope Access Via One
R Instrumentation Boss
R Figure 601/TASK 72-54-00-991-300- 24 (SHEET 2)
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R Location of the Borescope Ports and Possible Borescope Access Via One
R Instrumentation Boss
R Figure 601/TASK 72-54-00-991-300- 34 (SHEET 3)
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R Location of the Borescope Ports and Possible Borescope Access Via One
R Instrumentation Boss
R Figure 601/TASK 72-54-00-991-300- 44 (SHEET 4)
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Low Pressure Turbine Borescope Inspection
Figure 602/TASK 72-54-00-991-301- 13 (SHEET 1)
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Low Pressure Turbine Borescope Inspection
Figure 602/TASK 72-54-00-991-301- 23 (SHEET 2)
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