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Compressor Front Stator Assembly-Inspection
Figure 601/TASK 72-32-00-991-300
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R R Stator Vane ID to Rotor Contact Figure 602/TASK 72-32-00-991-304- 12 (SHEET 1)
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R R Stator Vane ID to Rotor Contact Figure 602/TASK 72-32-00-991-304- 22 (SHEET 2)
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-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
- Damaged or broken lever arm bushing Bushing body is intactand provides 360 degrees support to lever arm pin
- Missing bushings Not serviceable
R R - Missing or broken bushing legs Any amount
3. Actuation ring connector for :
- Cracks (or broken) one side only Not serviceable
- Cracks (or broken) both sides Not serviceable
4. Vane lever arms, IGV's and stage 3 for :
- Broken or bent Not serviceable
- Cracked Not serviceable
- Nicks, dents and scratches Area A not serviceableArea B 0.010 in. (0.25 mm) after removal of high metal provided bottom of defect is not sharp pointed. Area C (not including pin) 0.002 in. (0.05 mm) deep.
Replace bushing
See limit extensions(Ref. TASK 72-00-00-200-025)
Remove engine for replacement of HPC rotor blades in one stage forward of and 2 stages aft of stage with defective lever arms
Replace lever arm (Ref. TASK 72-32-00-000-004) and (Ref. TASK 72-32-00-400-004)
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-------------------------------------------------------------------------------INSPECT/CHECK MAXIMUM REMARKS SERVICEABLE LIMITS -------------------------------------------------------------------------------
5. Vane lever arms, stage 1 and 2 for : (Ref. Fig. 601/TASK 72-32-00-991-300)
- Broken or bent
- Cracked
- Nicks, dents and scratches
6. Vane assembly, IGV's and stage 3 for :
- Looseness
7. Vane assembly, stages 1 and 2 for :Not serviceable
Not serviceable
Area A not serviceableArea B 0.010 in. (0.25 mm) after removal of high metal provided bottom of defect is not sharp pointed. Area C (not including pin) 0.002 in. ( 0.05 mm) deep.
Any amount of radial and side movement provided bushing not missing. No metal to metal contact allowed. (Listen for metallic sound while shaking vane stem)Remove engine for replacement of HPC rotor blades in one stage forward of and 2 stages aft of stage with defective lever arms
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