-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
B. Nicks, dents and scratches
 C. Damaged or missing surface protection.
D. Loose or missing bonded washer.
E. Tip erosion.
R  F. Missing 
R  anti-erosion 
R  paint. 
R  G. Corrosion marks 
R  (white mushroom 
R  pattern) before 
R  part removal.
 2. Spinner rear cone
 for:
 A. Cracks 

B. Dents
C. Damaged surface protection.
F EEFF : ALL E E ECES No limited quantity
No limit if not greater than 50 percent of total surface
Not serviceable.
No limit if radius is not greater than 0.28 in. (7.1 mm) after blending.
Any amount is permitted.
These corrosion marks are not permitted.
Not serviceable
No limited quantity
No limit if not greater than 10 percent of total surface
『E EEEIf more than 50 percent oftotal surface, install anew or serviceable spinner front cone (Ref. TASK 72-21-00-400-005)
Reinstall washer usingLoctite 496 (Material No. CP2216) and hold it in pressure
Do blending procedure tomaximum serviceable limitsor install a newserviceable spinner front cone (Ref. TASK 72-21-00-400-005).
A continuation in service of 100 cycles max is permitted.
Install a new or serviceable spinner rear cone (Ref. TASK 72-21-00-400-006).
If more than 10 percent oftotal surface, install anew or serviceable spinner
72-21-00Page 603
Nov 01/02

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rear cone (Ref. TASK 72-21-00-400-006).
 D. Missing self-locking nuts  Not serviceable  Replace nuts (Ref. TASK72-21-00-300-001) or install a new or
 serviceable spinner rear cone (Ref. TASK 72-21-00-400-006).
 E. Self-locking nuts with loss of self-locking quality  Not serviceable if running torque is less than to 4 lbf.in (0.04 m.daN)  Replace nuts (Ref. TASK72-21-00-300-001) orinstall a new orserviceable spinner rear cone (Ref. TASK 72-21-00-400-006).
 F. Self-locking nuts with axial looseness  Not more than 0.008 in. (0.2 mm)  Crimp again (no crackpermitted) or replace nuts(Ref. TASK 72-21-00-300-001)
 G. Self-locking nuts with lateral looseness  Not more than 0.004 in. (0.1 mm)  Replace nuts (Ref. TASK72-21-00-300-001) orinstall a new or
 serviceable spinner rear cone (Ref. TASK 72-21-00-400-006). 
R R R R R  H. Oil wetting at inner of spinner cone or fan disk or forward fan shaft  None permitted  50 cycles extension allowed before O-ring change. Replace O-rings on the LPT shaft plug (Ref. TASK 72-55-00-960-002)

 NOTE : Whenever serviceable limits for the following are exceeded, refer
____ to the over-serviceable limit extension if necessary (Ref. TASK 72-00-00-200-025).
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________ Subtask 72-21-00-420-076
 A. Install the Spinner Cone.
 (1) Install the spinner rear cone (Ref. TASK 72-21-00-400-006).
 (2) Install the spinner front cone (Ref. TASK 72-21-00-400-005). Subtask 72-21-00-869-073
 B. Make sure that the work area is clean and clear of tool(s) and other items.
 Subtask 72-21-00-942-072
 C. Remove the warning notice(s).
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 Borescope Inspection of the Booster Rotor Blades, Stages 2,3,4 and 5 through the Booster Inlet and Borescope Ports SO3 and SO5
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific warning notice No specific access platform 1 m (3 ft. 3 in.) 856A1320 1 BORESCOPE KIT 856A1322 1 BORESCOPE - LIGHT SOURCE SET
　
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