* * * FOR ALL
TASK 72-32-01-200-801
1 . General.
A.This procedure gives instructions to do an inspection of the HPC stator forward case assembly (case assembly) (073A0).
B.The case assembly halves are a matched set. Keep them together.
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools.
 
Tool No.
Description
 
7C2000P01
Inspection System - Rotor Components/Assembly (rotor/stator components inspection system)
NOTE:
Alternative methods can be used to make the limits agree with the inspection requirements.
 
11C3294P01
Pin, Guide-HP Compressor Forward Stator Case (guide pin set)
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials.
 
Code No.
Description
 
C02-001
Compound, Anti-Seize, Federal Specification MIL-T-5544 (Lubricant)
C.Referenced Procedures.
 
ATA No.
Description
 
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 72-32-01-230-001
A.Do a Class D spot-fluorescent-penetrant inspection of the circumferential and horizontal flanges and to verify any visual indications. Refer to TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION) and as follows:
(1)If the circumferential aft flange boltholes have C03-038  Sermetel W paint on them, remove it. Refer to TASK 72-32-01-300-809 (72-32-01, REPAIR 009).
4 . Visual Inspection
Refer to Figure 801.
Subtask 72-32-01-220-001
A.Do an inspection of all surfaces for:
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the case assembly.
* * * FOR ALL
Figure 801   (Sheet 1 ) Case Assembly - Visual Inspection
* * * FOR ALL
Figure 801   (Sheet 2 ) Case Assembly - Visual Inspection
* * * FOR ALL
Figure 801   (Sheet 3 ) Case Assembly - Visual Inspection
* * * FOR ALL
Figure 801   (Sheet 4 ) Case Assembly - Visual Inspection
* * * FOR ALL
Figure 801   (Sheet 5 ) Case Assembly - Visual Inspection
* * * FOR ALL
Figure 802   Detailed Crack Inspection Criteria
Subtask 72-32-01-220-002
(2)Nicks, pits, scores, and scratches:
Maximum serviceable limit:
Any amount, any length, 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, any length, 0.020 inch (0.51 mm) in depth, and not less than a 0.050 inch (1.27 mm) radius at the bottom.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Subtask 72-32-01-220-003
(3)Hot spots (discoloration):
Maximum serviceable limit:
Any amount, no crazed metal or cracks permitted.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-004
(4)Discoloration on the case surfaces:
Maximum serviceable limit:
Any amount.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-005
(5)Corrosion on the case:
Maximum serviceable limit:
0.0008 inch (0.020 mm) in depth.
Maximum repairable limit:
Any amount, 0.008 inch (0.20 mm) in depth.
Repair method:
Wet abrasive blast clean. Refer to TASK 70-21-05-120-002 (CLEANING METHOD 5 - WET ABRASIVE BLAST CLEANING).
Subtask 72-32-01-220-006
B.Do an inspection of the surfaces of the stages 1 and 2 rotor blade rub lands for:
(1)Nicks, dents, and scratches:
Maximum serviceable limit:
•
Any depth not into parent metal.
•
Maximum area of individual defect, 0.250 sq in. (1.61 sq cm)
•
Maximum total area of defects, 1.0 sq in. (6 sq cm)
•
Blend to remove sharp edges. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Repair method:
Repair. Refer to TASK 72-32-01-300-804 (72-32-01, REPAIR 004) .
Subtask 72-32-01-220-008
(2)Local scabs (positive metal pickup from the blades):
Maximum serviceable limit:
Not serviceable.
Maximum repairable limit:
Any amount.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Subtask 72-32-01-220-040
C.Do an inspection of the stage 3 shroud and stage 4 shroud flowpath surfaces for:
(1)Rubs and gouges:
Maximum serviceable limit:
Any amount, 0.010 inch (0.25 mm) in depth.
Repair method:
Repair. Refer to TASK 72-32-01-300-806 (72-32-01, REPAIR 006) .
Subtask 72-32-01-220-041
(2)Nicks, dents, and scratches:
Maximum serviceable limit:
Any amount, 0.015 inch (0.38 mm) in depth.
Repair method:
Repair. Refer to TASK 72-32-01-300-806 (72-32-01, REPAIR 006) .
Subtask 72-32-01-220-042
(3)Local scabs (positive metal pickup from the blades):
Maximum serviceable limit:
Not serviceable
Maximum repairable limit:
Any amount.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-01-220-009
D.Do an inspection of the horizontal flanges for:
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-010
(2)Nicks and dents on the mating surface:
Maximum serviceable limit:
Any amount, 0.015 inch (0.38 mm) in depth, if the defect does not go completely across the mating surface.
Maximum repairable limit:
Any amount, any length, 0.030 inch (0.76 mm) in depth, if the defect does not go completely across the mating surface.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-01-220-011
(3)Fretting or galling on the mating surface:
Maximum serviceable limit:
Any amount, if in the limits of TASK 70-33-03-220-006 (SPECIAL INSPECTION FOR SURFACE FRETTING OR GALLING).
Maximum repairable limit:
Any amount, 0.004 inch (0.10 mm) in depth.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Subtask 72-32-01-220-012
E.Do an inspection of the circumferential flanges for the following. Refer to Figure 802.
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-013
(2)Nicks and scratches on the mating surface:
Maximum serviceable limit:
Any amount, 0.005 inch (0.12 mm) in depth, if the defect does not go completely across the mating surface.
Maximum repairable limit:
Any amount, any length, 0.010 inch (0.25 mm) in depth, if the defect does not go completely across the mating surface after the blend.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-014
(3)Cracks in the fillet between the aft circumferential flange and the horizontal flange. Refer to Figure 802.
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-015
(4)Fretting or galling on the mating surface:
Maximum serviceable limit:
Any amount, if in the limits of TASK 70-33-03-220-006 (SPECIAL INSPECTION FOR SURFACE FRETTING OR GALLING).
Maximum repairable limit:
Any amount, 0.008 inch (0.20 mm) in depth.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-131
(5)Corrosion pitting in the aft circumferential flange boltholes:
Maximum serviceable limit:
Any amount, 0.008 inch (0.20 mm) in depth.
Repair method:
Repair. Refer to TASK 72-32-01-300-809 (72-32-01, REPAIR 009) .
Subtask 72-32-01-220-016
F.Do an inspection of the stage 1 VSV bore area and stage 2-4 bushing areas for:
(1)Nicks and scratches (this does not include the mating surfaces):
Maximum serviceable limit:
Any amount, 0.004 inch (0.10 mm) in depth, 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 case assembly.
Subtask 72-32-01-220-017
(2)Nicks and scratches on the mating surfaces:
Maximum serviceable limit:
Any amount, 0.005 inch (0.13 mm) in depth, if less than 20 percent of the area is affected.
Maximum repairable limit:
Any amount, 0.010 inch (0.25 mm) in depth, if less than 20 percent of the area is affected.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Maximum repairable limit:
Any amount on the stage 2 thru 4 bushings.
Repair method:
Repair. Refer to TASK 72-32-01-300-801 (72-32-01, Repair 001) .
Subtask 72-32-01-220-018
(3)Wear or damage on the ID of the counterbore:
Maximum serviceable limit:
Any amount 0.023 inch (0.58 mm) in depth, if less than 20 percent of the area is affected.
Maximum repairable limit:
Any amount 0.047 inch (1.19 mm) in depth, if less than 20 percent of the area is affected.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Maximum repairable limit:
Any amount on the stage 2 thru 4 bushings.
Repair method:
Repair. Refer to TASK 72-32-01-300-801 (72-32-01, Repair 001) .
Subtask 72-32-01-220-019
(4)Wear in the bore:
Maximum serviceable limit:
Any amount, 0.002 inch (0.05 mm) in depth, if less than 50 percent of the area is affected.
Repair method:
Repair. Refer to TASK 72-32-01-300-801 (72-32-01, Repair 001) .
Subtask 72-32-01-220-057
(5)Fretting or galling on the stage 2, 3, and 4 bushing mating surfaces:
Maximum serviceable limit:
Any amount, if the bushings are in the limits of the special dimensional inspection. Refer to Subtask 72-32-01-220-038 (paragraph 6.A.(7)) and Subtask 72-32-01-220-039 (paragraph 6.A.(8)), and there is no spalled or missing sections of tungsten carbide coating that expose the bushing parent material.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-058
G.Do an inspection of the plug bolts (bolts) (07320), if installed in the HPC stator case mounting boss (boss) for. Refer to Figure 801.
(1)Loose, broken or missing bolts in the boss:
Maximum serviceable limit:
Not serviceable.
Maximum repairable limit:
Any amount.
Repair method:
Install new bolt or torque loose bolt to 106-125 lb in. (12.0-14.0 N.m).
Subtask 72-32-01-220-020
* * * PRE SB   72-0356
H.Do an inspection of the self-locking inserts of the mounting pads, bosses, and aft circumferential flange for:
(1)Loss of self-locking quality of the 0.250-28UNF-3B insert (mounting pads and bosses):
Maximum serviceable limit:
Not serviceable, if run-on torque is less than 3.5 lb in. (0.40 N.m).
Repair method:
Replace the self-locking insert. Refer to TASK 72-32-01-300-802 (72-32-01, REPAIR 002).
Subtask 72-32-01-220-021
(2)Loss of self-locking quality of the 0.375-24UNF-3B insert (aft circumferential flange):
Maximum serviceable limit:
Not serviceable if run-on torque is less than 9.5 lb in. (1.07 N.m).
Repair method:
Replace the self-locking insert. Refer to TASK 72-32-01-300-802 (72-32-01, REPAIR 002).
Subtask 72-32-01-220-022
(3)Loose or missing insert:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the self-locking insert. Refer to TASK 72-32-01-300-802 (72-32-01, REPAIR 002).
* * * END PRE SB   72-0356
Subtask 72-32-01-220-122
* * * SB   72-0356
H.A.Do an inspection of the key-locked insert for:
(1)Loss of self-locking quality:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the key-locked inserts. Refer to TASK 72-32-01-300-808 (72-32-01, REPAIR 008).
Subtask 72-32-01-220-123
(2)Looseness or missing:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the key-locked inserts. Refer to TASK 72-32-01-300-808 (72-32-01, REPAIR 008).
* * * END SB   72-0356
Subtask 72-32-01-220-023
I.Do an inspection of the borescope ports for:
(1)Damaged threads:
Maximum serviceable limit:
Not serviceable.
Maximum repairable limit:
One full thread total (cumulative) or continuous can be missing after removal of damage, if a minimum of 50 percent of the lead-in thread remains.
Repair method:
Remove the damage with a fine file or honing stone.
Subtask 72-32-01-220-024
(2)Wear or damage:
Maximum serviceable limit:
Any amount, 0.004 inch (0.10 mm) in depth, after removal of high metal. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES).
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-025
J.Do an inspection of the horizontal flange boltholes for:
(1)Wear or damage:
Maximum serviceable limit:
0.002 inch (0.05 mm) in depth.
Maximum repairable limit:
Any amount in dimensional limits of Subtask 72-32-01-220-035 (paragraph 6.A.(4)).
Repair method:
Ream the hole. Refer to TASK 70-42-01-350-003 (POLISHING BOLT HOLE SURFACES).
Subtask 72-32-01-220-026
K.Do an inspection of the inner stage 4 vane sector tongue (deflector rail) for. Refer to Figure 801 and as follows:
(1)Fretting and/or wear at the location of contact with the aft cover (deflector) not at the anti-rotation tab:
Maximum serviceable limit:
0.040 inch (1.02 mm) in depth, whole circumference or 0.060 inch (1.52 mm) in depth (locally, maximum 8.3 inches (211 mm) in circumferential length), after the removal of high metal and Class D spot-fluorescent-penetrant inspection. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) and TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION) .
Repair method:
Repair. Refer to TASK 72-32-01-300-803 (72-32-01, REPAIR 003) .
Subtask 72-32-01-220-072
(2)Fretting and/or wear at the location of contact with the aft cover (deflector) anti-rotation tab:
Maximum serviceable limit:
0.030 inch (0.76 mm) in depth, after the removal of high metal and Class D spot-fluorescent-penetrant inspection. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) and TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION) .
Repair method:
Repair. Refer to TASK 72-32-01-300-803 (72-32-01, REPAIR 003).
Subtask 72-32-01-220-104
(3)Nicks, scores, and scratches at the location of contact with the aft cover (deflector) anti-rotation tab:
Maximum serviceable limit:
Any amount, any length, 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, any length, 0.030 inch (0.76 mm) in depth.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-01-220-117
(4)Cracks at the location of the borescope hole area A. Refer to Figure 801 and as follows:
Maximum serviceable limit:
Any amount.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-102
L.Do an inspection of the outer stage 4 vane sector tongue. Refer to Figure 801 and as follows:
(1)Fretting and/or wear at the location of contact with the aft cover (deflector) not at the anti-rotation tab:
Maximum serviceable limit:
0.090 inch (2.28 mm) in depth, whole circumference, after the removal of high metal and Class D spot-fluorescent-penetrant inspection. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) and TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION) .
Maximum repairable limit:
Deleted.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-103
(2)Fretting and/or wear at the location of contact with the aft cover (deflector) at anti-rotation tab:
Maximum serviceable limit:
0.090 inch (2.28 mm) in depth, after the removal of high metal and Class D spot-fluorescent-penetrant inspection. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) and TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION) .
Repair method:
Repair. Refer to TASK 72-32-01-300-803 (72-32-01, REPAIR 003).
Subtask 72-32-01-220-105
(3)Nicks, scores, and scratches at the location of contact with the aft cover (deflector) anti-rotation tab:
Maximum serviceable limit:
Any amount, any length, 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, any length, 0.030 inch (0.76 mm) in depth.
Repair method:
Blend. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES) .
Subtask 72-32-01-220-027
M.Do an inspection of the VSV system guide pad guidance lobe for:
(1)Wear and/or fretting:
Maximum serviceable limit:
Any amount, 0.039 inch (0.99 mm) in length and 0.005 inch (0.13 mm) in depth.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-043
N.Do an inspection in the AGB mount spherical bearings of the HPC forward lower case assembly as follows. Refer to Figure 803.
(1)Circumferential movement of the ball:
Maximum serviceable limit:
Ball must turn freely under finger pressure.
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-046
(2)Axial looseness of the outer race in the AGB mount:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-047
(3)Nicks, dents, and scratches of the spherical surfaces and the ID (diameter BA and BB) of the ball:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-048
(4)Galling, fretting, or wear of the spherical surfaces, the ID (diameters BA and BB), and lateral faces of the ball:
Maximum serviceable limit:
Any amount, if in limits of TASK 70-33-03-220-006 (SPECIAL INSPECTION FOR SURFACE FRETTING OR GALLING) .
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-049
(5)Radial movement of the ball:
Maximum serviceable limit:
Any amount, if less then 0.0016 inch (0.041 mm).
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-050
(6)Axial movement of the ball:
Maximum serviceable limit:
0.003 inch (0.076 mm).
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
* * * FOR ALL
Figure 803   AGB Mounts and Mount Bearings Inspection
Subtask 72-32-01-220-044
O.Do an inspection of the AGB mounts for:
(1)Cracks:
Maximum serviceable limit:
Not serviceable.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-051
(2)Nicks, dents, and scratches (does not include spherical bearing):
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) .
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-052
(3)Wear, fretting, and galling on the AGB support mount lugs:
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) .
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-073
P.Deleted.
5 . Dimensional Inspection.
Refer to Figure 804 and Figure 805.
Subtask 72-32-01-220-028
A.Assemble the upper and lower case halves to do a dimensional inspection as follows:
NOTE:
Boltholes on the left and right flanges are numbered from 1 to 17 from forward to aft. Bolthole No. 1 is located at the forward end of the right and left side of the horizontal flange.
(1)Apply C02-001  lubricant to the threads and washer surfaces of the bolts and nuts.
(2)Install the 11C3294   guide pin set from aft to forward at boltholes 17, 12, 7, and 1 to align the flanges.
(3)Install the bolts and nuts in the remaining boltholes in the horizontal flange.
(4)Tighten the nuts until they touch the horizontal flange. Start from bolthole No. 16. Move from one flange to the other when the nuts are tightened.
(5)Torque the nuts in the same sequence to 590-610 lb in. (66.7-68.9 N.m).
(6)Remove the 11C3294   guide pin set from the boltholes and install bolts and nuts in the boltholes 17, 12, 7, and 1. Torque nuts until they touch the horizontal flanges.
(7)Torque the nuts at bolthole No. 17 to 890-910 lb in. (100.6-102.8 N.m). Torque the nuts at boltholes 12, 7, and 1 to 590-610 lb in. (66.7-68.9 N.m). Start from bolthole No. 12. Move from one flange to the other when the nuts are tightened.
(8)Measure all dimensions in free state. The reference axis is established by diameter A and surface B.
Subtask 72-32-01-220-029
B.Do a dimensional inspection as follows. Measure each diameter at 10 equally spaced locations. Calculate the average diameter dimension. Compare the average diameter to the dimensions that follow:
(1)Diameter A:
Minimum serviceable limit:
32.326 inches (821.09 mm).
Maximum serviceable limit:
32.334 inches (821.28 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-030
(2)Diameter D:
Minimum serviceable limit:
32.302 inches (820.48 mm).
Maximum serviceable limit:
32.310 inches (820.67 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-031
(3)Surface G (horizontal flange mating surface) flatness:
Maximum serviceable limit:
Not more than 0.002 inch (0.05 mm) radial gap between the upper and lower flange faces of the case assembly. No through gap is permitted.
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-059
(4)Diameter E at a point of 17.195 inches (436.75 mm) (dimension J) from surface C:
Maximum serviceable limit:
29.65 inches (753.1 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-804 (72-32-01, REPAIR 004) .
Subtask 72-32-01-220-060
(5)Diameter G at a point of 11.449 inches (290.80 mm) (dimension H) from surface C:
Maximum serviceable limit:
28.462 inches (722.93 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-804 (72-32-01, REPAIR 004) .
Subtask 72-32-01-220-061
(6)Surface B flatness:
Maximum serviceable limit:
0.002 inch (0.05 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-062
(7)Surface B parallel to surface C:
Maximum serviceable limit:
0.002 inch (0.05 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-063
(8)Diameter D concentric with reference axis:
Maximum serviceable limit:
0.002 inch (0.05 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-064
(9) Diameter D roundness:
Maximum serviceable limit:
0.003 inch (0.07 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, REPAIR 005).
Subtask 72-32-01-220-065
(10)Diameter A roundness:
Maximum serviceable limit:
0.003 inch (0.07 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-805 (72-32-01, 2REPAIR 005).
* * * FOR ALL
Figure 804   (Sheet 1 ) Case Assembly Halves - Assembly
* * * FOR ALL
Figure 804   (Sheet 2 ) Case Assembly Halves - Assembly
* * * FOR ALL
Figure 804   (Sheet 3 ) Case Assembly Halves - Assembly
* * * FOR ALL
Figure 805   Case Assembly - Dimensional Inspection
Subtask 72-32-01-220-045
C.Measure the diameters of the AGB mount as follows. Refer to Figure 803.
(1)Diameter BA:
Minimum serviceable limit:
0.7495 inch (19.037 mm).
Maximum serviceable limit:
0.7500 inch (19.050 mm).
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
Subtask 72-32-01-220-053
(2)Diameter BB:
Minimum serviceable limit:
0.8745 inch (22.212 mm).
Maximum serviceable limit:
0.8750 inch (22.225 mm).
Repair method:
Replace the spherical bearing. Refer to TASK 72-32-01-300-807 (72-32-01, REPAIR 007).
6 . Special Dimensional Inspection.
Refer to Figure 805.
NOTE:
Do this special dimensional inspection only if a visual inspection shows or other defect conditions are found that make it necessary to do a dimensional inspection.
Subtask 72-32-01-220-035
A.Do a dimensional inspection as follows:
(1)Diameter of boltholes No. 1, 4, 7, 12, and 15:
Maximum serviceable limit:
0.4405 inch (11.189 mm).
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-036
(2)Diameter of bolthole No. 17:
Maximum serviceable limit:
0.5030 inch (12.776 mm).
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-037
(3)Stage 1 vane bore diameters:
Minimum serviceable limit:
0.6704 inch (17.028 mm).
Maximum serviceable limit:
0.6734 inch (17.104 mm).
Repair method:
Replace the case assembly.
Subtask 72-32-01-220-038
(4)Stage 2 bushing diameters:
Maximum serviceable limit:
0.4512 inch (11.460 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-801 (72-32-01, Repair 001) .
Subtask 72-32-01-220-039
(5)Stage 3 and 4 bushing diameters:
Maximum serviceable limit:
0.3723 inch (9.456 mm).
Repair method:
Repair. Refer to TASK 72-32-01-300-801 (72-32-01, Repair 001) .