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78-31-49-400-047 Installation of the Upper Rod Supply Hose
78-31-49-400-048 Installation of the Rod Supply Pipe of the Left
Actuator
78-31-49-400-049 Installation of the Head Supply Pipe of the Left
Actuator
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
78-31-49-991-303 Fig. 601
3. Job Set-up
__________
Subtask 78-31-49-941-077
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).
Subtask 78-31-49-010-110
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) Put an access platform in position.
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C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
Subtask 78-31-49-010-111
D. Open the thrust reverser cowl doors (Ref. TASK 78-36-00-010-040):
FOR 1000EM1
451AL, 452AR
FOR 1000EM2
461AL, 462AR
4. Procedure
_________
(Ref. Fig. 601/TASK 78-31-49-991-303)
Subtask 78-31-49-210-052
A. Do a visual inspection of the hydraulic pipes as follows:
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. Do the inspection of the pipes for:
A. Crack No crack permitted If there is a crack, replace the pipe. (Ref. TASK 78-31-49-000-041) and (Ref. TASK 78-31-49-400-041) or (Ref. TASK 78-31-49-000-042) and (Ref. TASK 78-31-49-400-042) or (Ref. TASK 78-31-49-000-043) and (Ref. TASK 78-31-49-400-043) or (Ref. TASK 78-31-49-000-044) and (Ref. TASK 78-31-49-400-044) or (Ref. TASK 78-31-49-000-045) and (Ref. TASK 78-31-49-400-045) or
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INTENTIONALLY BLANK
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Forward Frame of the Half Door
Figure 601/TASK 78-31-49-991-303- 13 (SHEET 1)
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Forward Frame of the Half Door
Figure 601/TASK 78-31-49-991-303- 23 (SHEET 2)
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Forward Frame of the Half Door
Figure 601/TASK 78-31-49-991-303- 33 (SHEET 3)
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-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
B. Local collapse
-Two defects maximum per each 11.8 in. (300 mm)
- 0.98 in. (24.9 mm) minimum separation between defects -10 percent maximum depth
- 0.07 in. (1.8 mm) minimum radius at bottom of defect
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