TASK 72-50-24-300-005 LPT Stage 3 Air Seal Ring - Weld Repair The Seal Fin, Repair-005 (VRS4053)

DMC:V2500-A0-72-50-2404-00A-627A-C|Issue No:004.00|Issue Date:2020-05-01

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 72-50-24-300-005 LPT Stage 3 Air Seal Ring - Weld Repair The Seal Fin, Repair-005 (VRS4053)

Effectivity

FIG/ITEM

PART NO.

01-250

3A0961

01-250

3A1566

01-250

3A3108

01-250

3A3109

Material of component

PART IDENT

IAE SYMBOL

MATERIAL

Stage 3 airseal ring

C263

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK number are in the SPM.

Make sure that the necessary cleaning and inspection procedures are done before this repair.

NOTE

For more equipment and materials necessary to this repair refer to the SPM TASK 70-11-03-300-503, SPM TASK 70-09-00-400-501, SPM TASK 70-23-08-230-501, SPM TASK 70-37-00-370-501, and SPM TASK 70-31-04-310-501.
Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Turning latheLOCALTurning lathe

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-184 WELDING FILLER WIRE, NICKELLOCALCoMat 03-184
CoMat 03-387 WELDING FILLER WIRELOCALCoMat 03-387

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-24-320-053 Machine the Seal Fin

    1. Refer to Figure.

      2. Machine the damaged seal fins.

      1. Keep material removal to a minimum.

    2. SUBTASK 72-50-24-220-120 Examine the Machined Areas

    1. Refer to Figure.

    2. Examine dimensionally.

    3. SUBTASK 72-50-24-230-070 Examine the Machined Areas for Cracks

      1. Do the test for cracks.

      1. Refer to SPM TASK 70-23-08-230-501.

        No cracks are permitted.

    4. SUBTASK 72-50-24-110-080 Clean the Stage 3 Air Seal Ring

      1. Aqueous cleaning

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

    5. SUBTASK 72-50-24-310-058 Weld Repair the Seal Fin

    1. Refer to Figure.

      2. Micro-plasma build up weld the seal fins.

      1. Make sure that there is sufficient material to do last machining.

        Refer to SPM TASK 70-31-04-310-501.

    6. SUBTASK 72-50-24-230-071 Examine the Welded Areas for Cracks

      1. Do the test for cracks.

      1. Refer to the SPM TASK 70-23-08-230-501.

        No cracks are permitted.

    7. SUBTASK 72-50-24-370-054 Heat Treat after Weld Repair

      1. Heat treat the stage 3 air seal ring.

      1. Refer to the SPM TASK 70-37-00-370-501.

        Put the part in an oven for eight hours at 1450 to 1500 deg F (788 to 816 deg C).

        Use argon or vacuum.

        Cooling rate equivalent to air cooling

    8. SUBTASK 72-50-24-320-054 Machine the Repaired Areas

    1. Refer to Figure.

      2. Machine the welded area.

    9. SUBTASK 72-50-24-220-121 Examine the Machined Area

    1. Refer to Figure.

    2. Examine dimensionally.

    10. SUBTASK 72-50-24-230-072 Examine the Machined Area for Cracks

      1. Do the test for cracks.

      1. Refer to SPM TASK 70-23-08-230-501.

        No cracks are permitted.

    11. SUBTASK 72-50-24-380-056 Make a Mark to Identify the Repair

      1. Electrolytically etch or vibro-peen VRS4053 adjacent to the part number.

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

    12. Figure: Repair details and dimensions

    Repair details and dimensions

    Figure: Repair details and dimensions

    Repair details and dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised. (EC 94VM508B)

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:0XPV7
Supply Number:CoMat 03-184
Type:sp01
Supply Short Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Supply Name:CoMat 03-184 WELDING FILLER WIRE, NICKEL
Specification Groups:
Doc NumberType
MSRR9500/16C-263
OMAT:3/62C-263
Suppliers:
ManufacturerRemarks
0XPV7
28553
2R602
80357
IE306
K6970
Manufacturer Code:LOCAL
Supply Number:CoMat 03-387
Type:sp01
Supply Short Name:CoMat 03-387 WELDING FILLER WIRE
Supply Name:CoMat 03-387 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
C-263 AMS 5966 (was PWA 1087)
Suppliers:
ManufacturerRemarks
LOCAL
2R602
58401
Manufacturer Code:LOCAL
Tool Number:Turning lathe
Tool Name:Turning lathe