TASK 73-13-41-300-005 Fuel Nozzle And Support Assembly - Weld Repair The Fairing Cracks, Repair-005 (VRS3032)

DMC:V2500-A0-73-13-4100-00A-627A-C|Issue No:001.00|Issue Date:2014-05-01

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 73-13-41-300-005 Fuel Nozzle And Support Assembly - Weld Repair The Fairing Cracks, Repair-005 (VRS3032)

Effectivity

FIG/ITEM

PART NO.

01-020

2A0994

01-020

2A0994-001

01-020

2A1637

01-020

2A1637-001

01-020

2A2250

01-020

2A2250-001

01-020

2A3448

01-020

2A3448-001

01-020

2A3453

01-020

2A3453-001

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Fuel nozzle and support assembly

Corrosion and heat resistant alloy

General

Price and Availability - Refer to IAE.

The practices and processes referred to in this procedure by 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
Stainless steel wire brushLOCALStainless steel wire brush - no specific
Welding equipmentLOCALWelding equipment - no specific

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-209 WELDING FILLER WIRE, NiBASE 5% CrLOCALCoMat 03-209
CoMat 03-286 WELDING WIRELOCALCoMat 03-286
Silicon carbide abrasivesLOCALSilicon carbide abrasives - no specific

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 73-13-41-790-052 Do a Leak/Pressure Test of the Fuel Nozzle and Support Assembly

      1. If a crack is located in the fairing attachment weld area, do a leak/pressure test on the fuel nozzle to make sure any crack indications are not through cracks into the fuel passage.

      1. Refer to Figure to find the referenced weld area.

      2. Refer to Testing-001 TASK 73-13-41-700-201 for leak/pressure test procedure and acceptance criteria.

    2. SUBTASK 73-13-41-350-059 Remove the Cracks from the Fairing of the Fuel Nozzle and Support Assembly

    1. Refer to Figure.

    2. CAUTION

      BE CAREFUL WHEN YOU ROUTE OUT CRACKS SO YOU DO NOT CAUSE NICKS, GOUGES OR OTHER TOOL MARKS ON THE BASE METAL OF THE SUPPORT THAT IS ADJACENT TO OR BEHIND THE FAIRING.

      Route out cracks in the fairing.

      NOTE

      If the crack looks like it goes through the fairing outside of the weld area, it is not necessary to break through the fairing during routing.

    3. SUBTASK 73-13-41-110-056 Clean the Repair Area of the Fuel Nozzle and Support Assembly

      1. Clean the area to be welded to remove surface oxides from the fairing.

      1. Use a Stainless steel wire brush or Silicon carbide abrasives to mechanically clean around the crack repair area.

    4. SUBTASK 73-13-41-110-057 Clean the Fuel Nozzle and Support Assembly

      1. Clean the fuel nozzle and support assembly

      1. Refer to SPM .TASK 70-11-01-300-503.

    5. SUBTASK 73-13-41-310-051 Weld the Cracks in the Fairing

    1. Heat the nozzle and support assembly to 300 deg F (148.9 deg C) for a minimum of 20 minutes.

    2. Provide an argon gas backup (flow argon gas behind the heatshield during the weld repair).

      3. Weld the cracks in the fairing

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

      2. Manual gas tungsten arc weld (IAE 16A) the cracks in the fairing.

      3. Use CoMat 03-286 WELDING WIRE or CoMat 03-209 WELDING FILLER WIRE, NiBASE 5% Cr that is 0.031 in. (0.79 mm) in diameter.

      4. The maximum height of the weld must be 0.020 in. (0.51 mm).

      5. Do not remove material from the weld.

    4. Let the weld area become cool slowly after repair.

      NOTE

      Stress-relief is not necessary.

    6. SUBTASK 73-13-41-230-055 Examine the Fuel Nozzle and Support Assembly after Weld Repair

    1. Refer to Figure.

      2. Fluorescent penetrant inspect the weld repairs and the base metal of the support that is adjacent to the fairing.

      1. Refer to SPM TASK 70-23-05-230-501.

      2. No cracks are permitted.

      3. Fluorescent penetrant inspection is necessary on the complete fairing.

    7. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-209
Type:sp01
Supply Short Name:CoMat 03-209 WELDING FILLER WIRE, Ni BASE5% Cr
Supply Name:CoMat 03-209 WELDING FILLER WIRE, NiBASE 5% Cr
Specification Groups:
Doc NumberType
MSRR9500/213HASTELLOY W AMS 5786 MIL-R-5031 CLASS 12
OMAT:333HASTELLOY W AMS 5786 MIL-R-5031 CLASS 12
Suppliers:
ManufacturerRemarks
LOCAL
K6835
80357
Manufacturer Code:LOCAL
Supply Number:CoMat 03-286
Type:sp01
Supply Short Name:CoMat 03-286 WELDING WIRE
Supply Name:CoMat 03-286 WELDING WIRE
Specification Groups:
Doc NumberType
ALLOY SAE 30347 AMS 5680
Suppliers:
ManufacturerRemarks
LOCAL
2R602
58401
Manufacturer Code:LOCAL
Supply Number:Silicon carbide abrasives - no specific
Type:sp01
Supply Short Name:
Supply Name:Silicon carbide abrasives
Suppliers:
ManufacturerRemarks
LOCAL
Manufacturer Code:LOCAL
Tool Number:Stainless steel wire brush - no specific
Tool Name:Stainless steel wire brush
Manufacturer Code:LOCAL
Tool Number:Welding equipment - no specific
Tool Name:Welding equipment