TASK 75-22-48-300-001 ACAC Exhaust Duct Assembly - Weld Repair Cracks And Worn Areas, Repair-001 (VRS2304)

DMC:V2500-A0-75-22-4801-00A-627A-C|Issue No:001.00|Issue Date:2013-11-01

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 75-22-48-300-001 ACAC Exhaust Duct Assembly - Weld Repair Cracks And Worn Areas, Repair-001 (VRS2304)

Effectivity

FIG/ITEM

PART NO.

01-010

740-0361-503

Material of component

DESCRIPTION

RR SYMBOL

MATERIAL

ACAC exhaust duct assembly

Inconel 625

General

Price and availability - none

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

This repair uses a welding procedure to weld cracks or to build up material in worn areas.

For the method to clean the parts, refer to Cleaning-001 TASK 75-22-48-100-101.

NOTE

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this repair are given in SPM TASK 70-23-02-230-501 and SPM TASK 70-31-02-310-501-001.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Gas tungsten arc weld (GTAW) systemLOCALGas tungsten arc weld (GTAW) system
Hand Held Pneumatic GrinderLOCALHand Held Pneumatic Grinder
Drilling and routing equipmentLOCALDrilling and routing equipment
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-076 METHYL ETHYL KETONELOCALCoMat 01-076
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 03-287 WELDING FILLER WIRELOCALCoMat 03-287
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-131 MARKING PEN0AM53CoMat 06-131

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-22-48-230-052 Examine the Damaged Area of the Duct Assembly

      1. Florescent penetrant examine the damaged area for crack indications.

      1. Refer to SPM TASK 70-23-02-230-501.

      2. If there are no cracks.

      1. Refer to Step

    2. SUBTASK 75-22-48-350-051 Prepare the Crack for Weld

      1. Prepare the crack.

      1. Drill a hole to 0.080 to 0.100 in. (2.0 to 2.5 mm) in diameter at each end of the crack.

      2. Use a router to remove the material from the length of the crack to a maximum of 0.050 in. (1.3 mm) in width.

    3. SUBTASK 75-22-48-350-052 Remove Sharp Edges from the Repair Area

      1. Remove the sharp edges.

      1. Use CoMat 05-021 WATERPROOF SILICON CARBIDE in the areas to be welded.

    4. SUBTASK 75-22-48-110-052 Remove all the Dirt from the Surface

      1. Remove all oxides, hydrocarbon, grit and scale by local cleaning from the surface to be welded and the adjacent area.

      1. Refer to Cleaning-000 TASK 75-22-48-100-101.

    5. SUBTASK 75-22-48-310-051 Weld the Crack or Worn Area

      1. Use welding procedure to close the crack or to build-up material in the worn area.

    6. SUBTASK 75-22-48-350-053 Remove the Excess Weld

      1. Remove excess weld and make the weld area smooth with the adjacent area.

    7. SUBTASK 75-22-48-110-052 Clean the Repair Area

      1. Clean the repaired area.

      1. Refer to Cleaning-000 TASK 75-22-48-100-101.

    8. SUBTASK 75-22-48-230-053 Examine the Repaired area for Cracks

      1. Penetrant examine the repaired area for cracks. Refer to SPM TASK 70-23-02-230-501.

      1. If there are cracks, repeat Step thru Step

      2. If there are no cracks, go to Step

    9. SUBTASK 75-22-48-350-054 Identify the Repair

      1. Make a mark VRS2304 adjacent to the assembly number.

      1. Use a CoMat 06-131 MARKING PEN of contrasting color.

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 01-076
Type:sp01
Supply Short Name:CoMat 01-076 METHYL ETHYL KETONE
Supply Name:CoMat 01-076 METHYL ETHYL KETONE
Specification Groups:
Doc NumberType
METHYL ETHYL KETONE, TECHNICAL GRADE, CERTIFIED TO BSI BS 1940 OR ASTM D740, OR TT-M-261
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-287
Type:sp01
Supply Short Name:CoMat 03-287 WELDING FILLER WIRE
Supply Name:CoMat 03-287 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
INCONEL 625 AMS 5837 AMS 5837
Suppliers:
ManufacturerRemarks
LOCAL
2R602
55596
58401
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:0AM53
Supply Number:CoMat 06-131
Type:sp01
Supply Short Name:CoMat 06-131 MARKING PEN
Supply Name:CoMat 06-131 MARKING PEN
Suppliers:
ManufacturerRemarks
0AM53
Manufacturer Code:LOCAL
Tool Number:Drilling and routing equipment
Tool Name:Drilling and routing equipment
Link not Found
Manufacturer Code:LOCAL
Tool Number:Gas tungsten arc weld (GTAW) system
Tool Name:Gas tungsten arc weld (GTAW) system
Link not Found