R
3. Job Set-up
__________
Subtask 72-23-00-941-077
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 72-23-00-010-088
B. Open the fan cowl doors (Ref. TASK 71-13-00-010-040):
FOR 1000EM1
437AL, 438AR
FOR 1000EM2
447AL, 448AR
Subtask 72-23-00-040-066
C. Make the thrust reverser unserviceable (Ref. TASK 78-30-00-481-041).
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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 72-23-00-991-308, 602/TASK 72-23-00-991-309)
Subtask 72-23-00-210-057
A. Visual inspection of the fan Frame Assembly
-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
1. Fan frame casing for:
(Ref. Fig. 601/TASK 72-23-00-991-308)
R A. Cracks
R
R
R
R B. Dents or nicks on
R struts
R
R C. Corrosion
(discoloration)
D. Scaling or pitting
R
R 2. Fan FWD acoustical
R panel (Ref. TASK 72-
23-00-280-005)
R
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No limits in quantity if
0.08 in. (2,03 mm) max. length and a minimum of 1 in. (25,40 mm) apart.
No limits in quantity if, 0.08 in. (2.03 mm) max. depth
No limits in quantity
Not serviceable At the first opportunityremove rust (Ref. TASK 72-23-00-350-002)
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R Fan Frame Casing, Fan Inlet Case and Abradable Cartridge - Inspection/Check
R Figure 601/TASK 72-23-00-991-308- 15 (SHEET 1)
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R Figure 601/TASK 72-23-00-991-308- 25 (SHEET 2)
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R Figure 601/TASK 72-23-00-991-308- 35 (SHEET 3)
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R Figure 601/TASK 72-23-00-991-308- 45 (SHEET 4)
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R Figure 601/TASK 72-23-00-991-308- 55 (SHEET 5)
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Fan Duct Panels
Figure 602/TASK 72-23-00-991-309
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