TASK 80-13-49-300-004 Starter Air Ducts - Weld A Repair Patch, Repair-004 (VRS2763)

DMC:V2500-A0-80-13-4900-01A-627A-C|Issue No:004.00|Issue Date:2018-08-01

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 80-13-49-300-004 Starter Air Ducts - Weld A Repair Patch, Repair-004 (VRS2763)

Effectivity

FIG/ITEM

PART NO.

01-010

740-5121-503

01-010

740-5121-505

01-010

740-5121-507

01-010

740-5121-509

01-010

740-5121-511

01-500

740-5122-501

01-500

745-5122-503

Material of component

DESCRIPTION

IAE SYMBOL

MATERIAL

Starter duct

Stainless Steel

General

This repair procedure can be done on the starter duct during overhaul

Related repairs - not applicable

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Argon-arc welding equipmentLOCAL
Wire brushLOCAL

Stainless steel

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-076 METHYL ETHYL KETONELOCALCoMat 01-076
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 03-204 WELDING FILLER WIRELOCALCoMat 03-204
Material (Type 347)LOCALMIL-T-8808B

0.032 inch (0.813 mm)

Material (Type 347)LOCALMIL-T-8808B

0.036 inch (0.914 mm)

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 80-13-49-110-055 Clean the Starter Duct

      WARNING

      KEEP FLAMES AND ELECTRICAL EQUIPMENT WHICH IS NOT FLAMEPROOF AWAY FROM THE WORK AREA. THE CLEANING FLUID IS FLAMMABLE.

      WARNING

      DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE GAS. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

      1. Clean the starter duct.

      1. Refer to TASK 80-13-49-100-101 (CLEANING-001).

    2. SUBTASK 80-13-49-350-056 Prepare the Damaged Area

      1. Identify the area to be removed.

      1. Refer to Figure.

      2. Make sure that the mark is symmetrical in shape and larger all around than the damaged area.

      2. Remove the damaged area.

      1. Use the standard workshop tools and cut along the mark around the damaged area.

      2. Remove the damaged area.

      3. Remove all the sharp edges from the cut-out in the starter duct.

      1. Use the standard workshop tools.

    3. SUBTASK 80-13-49-350-057 Make a Repair Patch

      1. Make a repair patch.

      1. Use the standard workshop tools and either a section of used starter duct or the applicable repair material.

      2. Make the repair patch to the same dimensions as the cut-out in the starter duct.

      3. Roll the material until the contour of the repair patch and the starter duct are the same.

      2. Remove all the sharp edges from the repair patch.

      1. Use the standard workshop tools.

    4. SUBTASK 80-13-49-110-056 Clean the Starter Duct

      WARNING

      KEEP FLAMES AND ELECTRICAL EQUIPMENT WHICH IS NOT FLAMEPROOF AWAY FROM THE WORK AREA. THE CLEANING FLUID IS FLAMMABLE.

      WARNING

      DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A MASK. USE THE FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE GAS. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

      1. Clean the starter duct.

      1. Refer to TASK 80-13-49-100-101 (CLEANING-001).

    5. SUBTASK 80-13-49-310-002 Install the Repair Patch

      1. Put the repair patch into the correct position for installation.

      1. If necessary, tack weld the repair patch into position.

      2. Weld the repair patch.

      2. The welding data is as follows:

        NOTE

        The argon backing flow, the argon torch flow and the current flow must be determined by experiment on suitable test pieces.

        Type - Argon-arc D.C.

        Torch - B.O.C. W200 or equivalent

        Electrode - 2% ceriated tungsten with a 0.0625 inch (1.54 mm) diameter

    3. Let the repair cool.

    6. SUBTASK 80-13-49-120-001 Clean the Repaired Area

      1. Clean the repaired area.

      1. Use the Wire brush to remove the unwanted materials caused by the repair.

    7. SUBTASK 80-13-49-220-063 Examine the Repair

      1. Visually examine the repaired area of the starter duct.

      2. Make sure that the repair is satisfactory.

    8. SUBTASK 80-13-49-230-055 Examine the Repair

      1. Do the dye-penetrant test of the repair.

    9. SUBTASK 80-13-49-260-001 Examine the Repair

      1. Do the X-ray inspection of the repair.

    10. SUBTASK 80-13-49-780-059 Pressure Test the Starter Duct

      1. Do a pressure test of the starter duct.

      1. Refer to the TASK 80-13-49-700-101 (TESTING-001).

    11. SUBTASK 80-13-49-850-001 Put the Repair Scheme Number on the Starter Duct

      1. Put the repair scheme number VRS2763 on the starter duct adjacent to the part number using electro-etch method.

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

    12. Figure: Starter Duct Weld Repair

    Starter Duct Weld Repair

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial fix for in to mm conversion (typo)

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 03-204
Type:sp01
Supply Short Name:CoMat 03-204 WELDING FILLER WIRE
Supply Name:CoMat 03-204 WELDING FILLER WIRE
Specification Groups:
Doc NumberType
OMAT:306MSRR9500/2 B.S.2901:1970 347 S96/FORM. BSS2901 A8Nb
Suppliers:
ManufacturerRemarks
LOCAL
22994
IE306
Manufacturer Code:LOCAL
Supply Number:MIL-T-8808B
Type:sp01
Supply Short Name:
Supply Name:Material (Type 347)
Suppliers:
ManufacturerRemarks
LOCAL
Link not Found