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TASK 72-22-43-300-801
1 . Repair for the Flowpath Spacer.
A.This procedure gives instructions to repair the flowpath spacer (spacer) by blending. Refer to Figure 901.
B.The following Maximum Repairable limits apply to this repair:
NOTE:
The information below gives maximum repairable limits for the applicable Inspection sections. The paragraphs are numbered the same as the manual Inspection sections.
NOTE:
For 72-22-43, Inspection 001. Refer to TASK 72-22-43-200-801 (72-22-43, INSPECTION 001) .
(4)Visual Inspection.
(a)Do an inspection of all areas of the flowpath spacer (area AA and the mounting flange not included) for:
2Nicks, dents, scratches, and pits:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.008 inch (0.20 mm) in depth and if the defects are not more than 0.5 inch (13 mm) in diameter or in length.
For aft seal tooth only (2302M37P02   only), any amount that can be removed within these limits:
• Maximum radial blend depth of 0.075 inch (1.90 mm) is permitted
• Maximum blend circumferential width of 0.410 inches (10.41 mm)
• Minimum blend radius of 0.250 inches (6.35 mm)
• If more than one blend is required, the cumulative circumferential blend length must be 1.50 inch (38.0 mm) maximum and average radial blend depth must be 0.020 inch (0.50 mm) maximum
• Blend in a circumferential direction.
(b)Do an inspection of area AA on the flowpath spacer for:
1Nicks, dents, scratches, and pits:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.008 inch (0.20 mm) in depth.
2Fretting and wear:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.008 inch (0.20 mm) in depth.
(c)Do an inspection of the forward and aft surfaces of the mounting flange for:
1Nicks, dents, and scratches:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.010 inch (0.25 mm) in depth, with a minimum distance between defects of 2.0 inches (51 mm) if the total defects to be blended are not more than 20 percent of the area between the boltholes or within 0.125 inch (3.18 mm) of the boltholes.
3Fretting:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.008 inch (0.20 mm) in depth.
(d)Do an inspection of the boltholes for:
1Thread marks and scratches:
Maximum repairable limit:
Any amount, if the damage can be removed with a blend of 0.008 inch (0.20 mm) in depth.
C.The subsequent table gives a list of the part numbers that are applicable to this repair. All part numbers are applicable to all paragraphs unless specified differently.
 
Part Number(s)
 
2302M37P01  
2302M37P02  
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D.Proprietary/Complex Process Statement.
(1)None.
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
 
70-21-00
Chemical Cleaning
 
70-21-03
Cleaning Method No. 3 - Steam Cleaning
 
70-24-00
Etching Procedures for Fluorescent-Penetrant Inspection
 
70-24-01
Swab Etching Procedure
 
70-32-00
Indirect Inspection Methods
 
70-32-03
Spot-Fluorescent-Penetrant Inspection
 
70-42-00
Blending and Removal of High Metal Procedures
 
70-47-01
Shotpeening
 
72-22-43
Inspection 001
D.Expendable Parts. None.
E.SPD Information. None
F.Special Solutions. None.
G.Test Specimens. None.
3 . Dimensional Information.
Subtask 72-22-43-220-019
A.Refer to Figure 901 for specified dimensions and locations.
NOTE:
The dimensional data identified within this procedure was designed using inches as the base unit of measurement for dimensional values. The conversion to millimeters is rounded to one less decimal digit than inches. For minimum dimensions converted values are rounded up. For maximum dimensions, converted values are rounded down. To avoid conversion errors, do not reconvert from millimeters to inches.
4 . Setup Information.
None.
5 . Procedure.
Subtask 72-22-43-110-007
A.Clean the spacer. Refer to TASK 70-21-00-110-051 (CHEMICAL CLEANING) and TASK 70-21-03-160-001 (CLEANING METHOD NO. 3 - STEAM CLEANING).
Subtask 72-22-43-160-004
B.Do a visual inspection of the spacer for surface defects or corrosion. Refer to TASK 72-22-43-200-801 (72-22-43, INSPECTION 001).
Subtask 72-22-43-350-001
C.Blend the spacer. Refer to TASK 70-42-00-350-002 (BLENDING AND REMOVAL OF HIGH METAL PROCEDURES), Figure 902, Figure 904, and as follows:
(1)Remove the minimum quantity of material to get the maximum repairable limit.
(2)Break all sharp edges to 0.015 to 0.030 inch (0.39 to 0.76 mm).
(3)Deleted.
(4)Deleted.
(a)Deleted.
1Deleted.
Subtask 72-22-43-220-020
2Deleted.
3Deleted.
4Deleted.
Subtask 72-22-43-350-002
(c)Deleted.
(5)Deleted.
Subtask 72-22-43-110-008
D.Etch the spacer repair area. Refer to TASK 70-24-00-110-033 (ETCHING PROCEDURES FOR FLUORESCENT-PENETRANT INSPECTION), TASK 70-24-01-110-034 (SWAB ETCHING PROCEDURE), and as follows:
(1)Use Class B etchant.
Subtask 72-22-43-230-002
E.Do an inspection of the spacer repair area. Refer to TASK 70-32-00-200-002 (INDIRECT INSPECTION METHODS), TASK 70-32-03-230-002 (SPOT-FLUORESCENT-PENETRANT INSPECTION), and as follows:
(1)Use Class G penetrant.
(2)Indications less than 0.015 inch (0.38 mm) are permitted.
Subtask 72-22-43-110-009
F.Clean the spacer. Refer to TASK 70-21-00-110-051 (CHEMICAL CLEANING) and TASK 70-21-03-160-001 (CLEANING METHOD NO. 3 - STEAM CLEANING).
Subtask 72-22-43-380-001
G.Peen the spacer repair area. Refer to TASK 70-47-01-380-016 (SHOTPEENING), Figure 903, and as follows:
NOTE:
Peening is not permitted in the 6 (six) side threaded holes.
(1)Use 110 steel shot.
(2)Peen at an intensity of 0.006N-0.012N.
(3)An intensity verification is necessary.
NOTE:
Intensity verification is applicable to the repair area only.
(4)Overspray is permitted in all areas except the threaded holes.
(5)Use a simulative fixture to do the intensity verification.
(6)Ricochet peening is permitted in area J, only.
Subtask 72-22-43-110-010
H.Clean the spacer. Refer to TASK 70-21-00-110-051 (CHEMICAL CLEANING) and TASK 70-21-03-160-001 (CLEANING METHOD NO. 3 - STEAM CLEANING).
Subtask 72-22-43-220-021
I.Do a visual inspection of the spacer. Refer to TASK 72-22-43-200-801 (72-22-43, INSPECTION 001).
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Figure 901   Flowpath Spacer
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Figure 902   (Sheet 1 ) Flowpath Spacer - Inspection Areas
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Figure 902   (Sheet 2 ) Flowpath Spacer - Inspection Areas
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Figure 903   (Sheet 1 ) Flowpath Spacer - Shotpeen Verification
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Figure 903   (Sheet 2 ) Flowpath Spacer - Shotpeen Verification
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Figure 904   Flowpath Spacer - Dimensional Information