* * * FOR ALL
TASK 72-32-70-200-801
1 . General.
A.This procedure gives instructions to do an inspection of the HPC stator stages 1 thru 4 VSV lever arms (lever arms):
(1)There are two interchangeable types of VSV stage 1-4 kit, which consist of vanes, lever arms, ring segments, bridge connectors, and sleeves. Complete stage sets of the old and new hardware can be installed on the same HPC forward case assembly. The entire set of hardware for each stage must be changed at the same time. Refer to Figure 801.
(2)HPC stator stages 1 thru 4 VSV lever arms include:
PRE SB 72-0052 (CONFIGURATION 1)
•
Stage 1 and stage 2 lever arms (01-050 , 72-32-00) (SIN 071D1) and (01-090 , 72-32-00) (SIN 071D2)
•
Stage 1 and stage 2 bridge pin-up lever arms (01-060 , 72-32-00) (SIN 071D6) and (01-100 , 72-32-00) (SIN 071D7)
•
Stage 3 lever arms (01-120 , 72-32-00) (SIN 071D3)
•
Stage 3 bridge lever arms (01-130 , 72-32-00) (SIN 071D8)
•
Stage 4 lever arms (01-160 , 72-32-00) (SIN 071D4)
•
Stage 4 bridge lever arms (01-170 , 72-32-00) (SIN 071D9).
SB 72-0052 (CONFIGURATION 2)
•
Stages 1 thru 4 lever arms (01-050A , 72-32-00) (SIN 071D1), (01-090A , 72-32-00) (SIN 071D2), (01-120A , 72-32-00) (SIN 071D3), and (01-160A , 72-32-00) (SIN 071D4)
•
Stages 1 thru 4 rigging lever arms (01-180 , 72-32-00) (SIN 071C0)
NOTE: Rigging lever arm can be identified by a white stripe that extends across the outer face of the lever arm.
•
Stages 1 thru 4 bridge pin-up lever arms (01-060A , 72-32-00) (SIN 071D6), (01-100A , 72-32-00) (SIN 071D7), (01-130A , 72-32-00) (SIN 071D8), and (01-170A , 72-32-00) (SIN 071D9). Refer to Figure 801.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools. None.
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials. None.
C.Referenced Procedures.
 
ATA No.
Description
 
70-32-02
Fluorescent Penetrant Inspection
 
70-32-03
Spot-Fluorescent-Penetrant Inspection
 
70-33-03
Special Inspection For Surface Fretting Or Galling
 
70-42-00
Blending And Removal Of High Metal Procedures
D.Expendable Parts. None.
3 . Specific Inspection Procedure.
Subtask 72-32-70-220-001
A.Do a fluorescent penetrant inspection on the lever arms as follows:
Subtask 72-32-70-230-001
(1)Alternative Procedure Available. Do a Class A fluorescent penetrant inspection on the lever arms. Refer to TASK 70-32-02-230-001 (FLUORESCENT PENETRANT INSPECTION).
Subtask 72-32-70-220-002
(1).A.Alternative Procedure. Do a spot-fluorescent-penetrant to make sure there are no cracks in the lever arms. Refer to TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION).
4 . Visual Inspection.
Refer to Figure 801.
Subtask 72-32-70-220-003
A.Do an inspection of all surfaces for:
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the lever arm.
* * * FOR ALL
* * * PRE SB   72-0052( Configuration 1 )
Figure 801   (Sheet 1 ) HPC Stator Stages 1 thru 4 Lever Arms - Inspection
* * * FOR ALL
* * * PRE SB   72-0052( Configuration 1 )
Figure 801   (Sheet 2 ) HPC Stator Stages 1 thru 4 Lever Arms - Inspection
* * * FOR ALL
* * * PRE SB   72-0052( Configuration 1 )
Figure 801   (Sheet 3 ) HPC Stator Stages 1 thru 4 Lever Arms - Inspection
* * * FOR ALL
* * * SB   72-0052( Configuration 2 )
Figure 801A   HPC Stator Stages 1 thru 4 Lever Arms - Inspection
* * * FOR ALL
Figure 801B   HPC Stator Stages 1 thru 4 Lever Arms - Inspection
Subtask 72-32-70-220-004
B.Do an inspection of the lever arms for:
(1)Distorted or bent:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-005
(2)Nicks, dents, and scratches in area H:
Maximum serviceable limit:
0.001 inch (0.03 mm) in depth, if you can fully remove the damage with a blend procedure. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-006
(3)Nicks, dents, and scratches in area G for lever arms (071D1, 071D2, 071D3, 071D6, 071D7, 071D8):
Maximum serviceable limit:
0.006 inch (0.15 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, if you can fully remove the damage with a blend to a depth of 0.010 inch (0.25 mm).
Repair method:
Blend to remove the damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES ) .
Subtask 72-32-70-220-024
(4)Nicks, dents, and scratches in area G for lever arms (071D4, 071D9):
Maximum serviceable limit:
0.006 inch (0.15 mm) in depth, after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Maximum repairable limit:
Any amount, if you can fully remove the damage with a blend to a depth of 0.006 inch (0.15 mm).
Repair method:
Blend to remove the damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES ) .
Subtask 72-32-70-220-007
C.Do an inspection of the mating face for:
(1)Nicks, dents, and scratches on mating faces:
Maximum serviceable limit:
Any amount, 0.010 inch (0.25 mm) in depth, after removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES ) .
Maximum repairable limit:
Any amount, if in the limits of dimension limits. Refer to Subtask 72-32-70-220-019 (paragraph 5.B.(1) thru Subtask 72-32-70-220-021 (paragraph 5.B(3) .
Repair method:
Blend to remove the damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-70-220-008
(2)Wear, fretting or galling on the mating faces:
Maximum serviceable limit:
Not more than 0.005 inch (0.13 mm) in depth on 15 percent of the surface.
Maximum repairable limit:
Any amount, if in the dimensional limits. Refer to Subtask 72-32-70-220-019 (paragraph 5.B.(1) thru Subtask 72-32-70-220-021 (paragraph 5.B(3) .
Repair method:
Blend to remove the damage. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-70-220-010
D.Do an inspection of the pin for:
(1)Loose, missing, or distorted:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-011
(2)Wear on pin:
Maximum serviceable limit:
Any amount without high metal, if in the dimensional limits of Subtask 72-32-70-220-015 (paragraph 5.A.(1)) .
Maximum repairable limit:
Any amount with high metal, if in the dimensional limits after you blend.
Repair method:
Blend to remove high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-70-220-012
(3)Discoloration:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-013
E.Do an inspection of the D slot surfaces for:
(1)Fretting, galling, or wear:
Maximum serviceable limit:
Any amount, within limits of TASK 70-33-03-220-006 (SPECIAL INSPECTION FOR SURFACE FRETTING OR GALLING) , after the removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-014
(2)Rub marks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-025
(3)Nicks and dents:
Maximum serviceable limit:
Not serviceable.
Maximum repairable limit:
Deleted.
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-033
A.Do an inspection of the lever arm, P/N 2373M22G06   , for:
(1)Missing paint on area K:
Maximum serviceable limit:
Not serviceable.
Repair method:
Repair. Refer to TASK 72-32-70-300-801 (72-32-70, REPAIR 001).
5 . Special Dimensional Inspection.
Subtask 72-32-70-220-031
A.Do this dimensional inspection only if a visual inspection or other defect conditions make it necessary for further inspection. Refer to Figure 801 and Figure 801A.
Subtask 72-32-70-220-015
B.Measure the diameter as follows. Refer to Figure 801 and Figure 801A.
(1)Diameter D (pin):
Minimum serviceable limit:
0.201 inch (5.11 mm).
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-019
* * * PRE SB   72-0052( Configuration 1 )
C.Measure the thickness as follows. Refer to Figure 801.
(1)Dimension E (stages 1 and 2):
Minimum serviceable limit:
0.411 inch (10.44 mm).
Repair method:
Replace the lever arm.
NOTE:
SB 72-0052 (Configuration 1) does not require to measure the thickness of dimension E.
Subtask 72-32-70-220-020
(2)Dimension E (stage 3):
Minimum serviceable limit:
0.416 inch (10.57 mm).
Repair method:
Replace the lever arm.
NOTE:
SB 72-0052 (Configuration 1) does not require to measure the thickness of dimension E.
Subtask 72-32-70-220-021
(3)Dimension E (stage 4):
Minimum serviceable limit:
0.888 inch (22.56 mm).
Repair method:
Replace the lever arm.
NOTE:
SB 72-0052 (Configuration 1) does not require to measure the thickness of dimension E.
Subtask 72-32-70-220-022
D.Measure the D slot as follows. Refer to Figure 801.
(1)Dimension F (stages 1 and 2):
Maximum serviceable limit:
0.2235 inch (5.677 mm).
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-026
(2)Dimension F (stages 3 and 4):
Maximum serviceable limit:
0.2285 inch (5.804 mm).
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-027
(3)Dimension J (stage 1 and stage 2):
Maximum serviceable limit:
0.404 inch (10.26 mm).
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-023
(4)Dimension J (stage 3 and stage 4):
Maximum serviceable limit:
0.314 inch (7.98 mm).
Repair method:
Replace the lever arm.
* * * END PRE SB   72-0052
Subtask 72-32-70-220-028
* * * SB   72-0052( Configuration 2 )
E.Measure the thickness as follows. Refer to Figure 801A.
(1)Dimension K (stages 1 thru 4):
Minimum serviceable limit:
0.155 inch (3.94 mm).
Repair method:
Replace the lever arm.
NOTE:
PRE SB 72-0052 (configuration 2) does not require to measure the thickness of dimension K.
Subtask 72-32-70-220-029
F.Measure the D slot as follows. Refer to Figure 801A.
(1)Dimension F (stages 1 thru 4):
Maximum serviceable limit:
0.2305 inch (5.854 mm).
Repair method:
Replace the lever arm.
Subtask 72-32-70-220-030
(2)Dimension J (stage 1 thru 4):
Maximum serviceable limit:
0.345 inch (8.77 mm).
Repair method:
Replace the lever arm.
* * * END SB   72-0052