TASK 72-41-21-300-095 HPC Stage 11 Rotor Path Ring Case Assembly - Weld Repair, Repair-095 (VRS9295)

DMC:V2500-A0-72-41-2111-00A-627A-C|Issue No:001.00|Issue Date:2021-05-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-41-21-300-095 HPC Stage 11 Rotor Path Ring Case Assembly - Weld Repair, Repair-095 (VRS9295)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

04-350

6A6551

A

04-350

6A7531

A

04-350

6B1435

B

Material of component

DESCRIPTION

SYMBOL

MATERIAL

HP Compressor Stage 11 Case

QTX, QRK, OR RQY

Nickel Alloy

GENERAL

This repair must only be done when the instruction to do so is given in TASK 72-41-21-200-011-D00 for PNs 6A6551 and 6A7531.

This repair must only be done when the instruction to do so is given in TASK 72-41-21-200-011-E00 for PN 6B1435.

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.
Remove the abradable lining.TASK 72-41-21-300-019
Remove all spacers for PNs 6A6551 and 6A7531 only.TASK 72-41-21-300-040

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-374 WELDING FILLER WIRELOCALCoMat 03-374

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-320-007 Blend the Damage

    1. Refer to Figure for PNs 6A6551 and 6A7531. Refer to Figure for PN 6B1435.

      2. Blend the area(s) of damage as necessary.

      1. Refer to SPM TASK 70-35-03-300-501.

    2. SUBTASK 72-41-21-110-283 Clean the Part

      1. Clean the part.

      1. Refer to SPM TASK 70-11-03-300-503.

    3. SUBTASK 72-41-21-230-245 Do a Fluorescent Penetrant Inspection

      1. Do a penetrant crack inspection on the repair area(s) by one of the procedures that follow:

      1. Refer to SPM TASK 70-23-05-230-501. Use high sensitivity penetrant. Cracks and indications are not permitted.

      2. Refer to SPM TASK 70-23-03-230-501 or TASK 70-23-08-230-501. Cracks and indications are not permitted.

    4. SUBTASK 72-41-21-350-287 Preparation for Weld

      1. Use the suitable abrasive procedure to remove oxides and prepare the repair area(s) for weld.

      1. Refer to SPM TASK 70-31-13-310-501.

    5. SUBTASK 72-41-21-110-284 Clean the Repair Area(s)

      1. Clean the repair area(s).

      1. Refer to SPM TASK 70-11-26-300-503.

    6. SUBTASK 72-41-21-310-052 Weld the Area(s) of Damage

    1. Refer to Figure for PNs 6A6551 and 6A7531. Refer to Figure for PN 6B1435.

      2. Weld build up the area(s) of damage as necessary.

      1. Refer to SPM TASK 70-31-13-310-501.

      2. Use the Manual Gas Tungsten Arc Weld (GTAW-MA) procedure.

    7. SUBTASK 72-41-21-370-052 Heat Treat

      1. Do a local heat treat of the repair area(s).

    8. SUBTASK 72-41-21-220-774 Test the Hardness

      1. Do a hardness check in the heat treat areas but away from the welded area(s).

      1. Hardness must be HV 326, HB 300, or equivalent minimum.

    9. SUBTASK 72-41-21-320-008 Finish Machine

    1. Refer to Figure for PNs 6A6551 and 6A7531. Refer to Figure for PN 6B1435.

    2. Do a finish operation of the welded areas by machine procedure. Sharp edges or raised material are not permitted.

    10. SUBTASK 72-41-21-110-285 Clean the Part

      1. Clean the part.

      1. Refer to SPM TASK 70-11-03-300-503.

    11. SUBTASK 72-41-21-230-246 Do a Fluorescent Penetrant Inspection

      1. Do a penetrant crack inspection on the repair area(s) by one of the procedures that follow:

      1. Refer to SPM TASK 70-23-05-230-501. Use high sensitivity penetrant. Cracks and indications are not permitted.

      2. Refer to SPM TASK 70-23-03-230-501 or TASK 70-23-08-230-501. Cracks and indications are not permitted.

    12. SUBTASK 72-41-21-220-775 Examine the HPC Stage 11 Rotor Path Ring Case Assembly

    1. Refer to Figure for PNs 6A6551 and 6A7531. Refer to Figure for PN 6B1435.

      2. Do a visual and dimensional inspection of the part.

      1. For PN 6A7531 refer to TASK 72-41-21-200-011-D00.

      2. For PN 6B1435 refer to TASK 72-41-21-200-011-E00.

    13. SUBTASK 72-41-21-350-288 Identify the Repair

      1. Vibration peen VRS9295 adjacent to the part number.

      1. Refer to SPM TASK 70-09-00-400-501.

    14. Figure: Lining Retaining Recess Front And Rear Lips Weld Repair (For Assembly A)

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    Legend
    [1]

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    [2]

    0.100 Inch (2.54 mm) Maximum After Blend Before Weld.

    [3]

    0.100 Inch (2.54 mm) Maximum After Blend Before Weld.

    [4]

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    [5]

    Weld Repair Area.

    [6]

    0.450 Inch (11.43 mm) Maximum After Blend Before Weld.

    Close

    Figure: Lining Retaining Recess Front And Rear Lips Weld Repair (For Assembly A)

    2.045 - 2.052 Inches (51.93 - 52.13 mm), Reference

    Legend
    [1]

    2.045 - 2.052 Inches (51.93 - 52.13 mm), Reference

    [2]

    0.321 - 0.323 Inch (8.15 - 8.21 mm)

    [3]

    1.706 - 1.725 Inch (43.32 - 43.82 mm) Over Radius, Reference

    [4]

    0.021 - 0.030 Inch (0.52 - 0.78 mm) X 43° - 47° Chamfer.

    [5]

    0.060 - 0.070 Inch (1.52 - 1.78 mm)

    [6]

    20.602 - 20.606 Inch (523.28 - 523.40 mm) Diameter, Each Side.

    [7]

    0.059 - 0.074 Inch (1.50 - 1.90 mm) Radius.

    [8]

    0.012 - 0.031 Inch (0.30 - 0.80 mm)

    [9]

    43° - 47° Typical Two Locations.

    [10]

    20.670 - 20.692 Inch (525.00 - 525.60 mm) Diameter.

    [11]

    1.511 - 1.522 Inches (38.38 - 38.68 mm)

    [12]

    21.344 - 21.348 Inch (542.13 - 542.25 mm) Diameter, Reference

    NOTE: Do an inspection of the part in a held condition with Surface A flat in 0.001 inch (0.025 mm) and Diameter B to be fitted in gauge 21.348 inch (542.25 mm) diameter. Hold the part only on Surfaces F, A, and Diameter B.

    NOTE: Unless otherwise specified, surface texture to be 125 microinches (3.2 micrometers).

    NOTE: Break sharp edges to 0.004 - 0.020 inch (0.1 - 0.5 mm).

    Close

    Figure: Lining Retaining Recess Front And Rear Lips Weld Repair (For Assembly B)

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    Legend
    [1]

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    [2]

    0.100 Inch (2.54 mm) Maximum After Blend Before Weld.

    [3]

    0.100 Inch (2.54 mm) Maximum After Blend Before Weld.

    [4]

    0.090 Inch (2.29 mm) Maximum After Blend Before Weld.

    [5]

    Weld Repair Area.

    [6]

    0.450 Inch (11.43 mm) Maximum After Blend Before Weld.

    Close

    Figure: Lining Retaining Recess Front And Rear Lips Weld Repair (For Assembly B)

    2.045 - 2.052 Inches (51.93 - 52.13 mm), Reference

    Legend
    [1]

    2.045 - 2.052 Inches (51.93 - 52.13 mm), Reference

    [2]

    0.321 - 0.323 Inch (8.15 - 8.21 mm)

    [3]

    1.706 - 1.725 Inch (43.32 - 43.82 mm) Over Radius, Reference

    [4]

    0.021 - 0.030 Inch (0.52 - 0.78 mm) X 43° - 47° Chamfer.

    [5]

    0.060 - 0.070 Inch (1.52 - 1.78 mm)

    [6]

    20.602 - 20.606 Inch (523.28 - 523.40 mm) Diameter, Each Side.

    [7]

    0.059 - 0.074 Inch (1.50 - 1.90 mm) Radius.

    [8]

    0.012 - 0.031 Inch (0.30 - 0.80 mm)

    [9]

    43° - 47° Typical Two Locations.

    [10]

    20.670 - 20.692 Inch (525.00 - 525.60 mm) Diameter.

    [11]

    1.511 - 1.522 Inches (38.38 - 38.68 mm)

    [12]

    21.344 - 21.348 Inch (542.13 - 542.25 mm) Diameter, Reference

    NOTE: Do an inspection of the part in a held condition with Surface A flat in 0.001 inch (0.025 mm) and Diameter B to be fitted in gauge 21.348 inch (542.25 mm) diameter. Hold the part only on Surfaces F, A, and Diameter B.

    NOTE: Unless otherwise specified, surface texture to be 125 microinches (3.2 micrometers).

    NOTE: Break sharp edges to 0.004 - 0.020 inch (0.1 - 0.5 mm).

    Close

Requirements After Job Completion

Follow-On Conditions

Action/ConditionData Module/Technical Publication
Apply the abradable lining again.TASK 72-41-21-300-019
Install all the removed spacers for PNs 6A6551 and 6A7531.TASK 72-41-21-300-040
Change Type:

Added new repair. (19VG229)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:58401
Supply Number:CoMat 03-374
Type:sp01
Supply Short Name:CoMat 03-374 WELDING FILLER WIRE
Supply Name:CoMat 03-374 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
AMS 5802
Suppliers:
ManufacturerRemarks
58401