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 Fan Frame Casing, Fan Inlet Case and Abradable Cartridge - Inspection/Check
R  Figure 601/TASK 72-23-00-991-308- 25 (SHEET 2) 
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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- 35 (SHEET 3) 
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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- 45 (SHEET 4) 
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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- 55 (SHEET 5) 
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 Fan Duct Panels
 Figure 602/TASK 72-23-00-991-309
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