TASK 72-50-53-300-088 Turbine Exhaust Case (TEC) - Oversized Instrumentation Bushing Bore, Bushing Weld, Repair-088 (VRS3068)

DMC:V2500-A0-72-50-5301-02A-664A-C|Issue No:002.00|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 72-50-53-300-088 Turbine Exhaust Case (TEC) - Oversized Instrumentation Bushing Bore, Bushing Weld, Repair-088 (VRS3068)

Effectivity

FIG/ITEM

PART NO.

02-140

4P8009

02-300

4B8060

02-300

4B8068

21-200

2A2165

21-300

2A1209-01

21-300

2A2620-01

21-300

2A3111-01

21-300

2A3183-01

21-300

2A3455-01

21-300

2A4258-01

21-300

2A4263-01

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Turbine exhaust case bushing

AMS 5616, Greek Ascoloy (For FIG/ITEM 02-140)

Turbine exhaust case bushing

AMS 5872, Nickel Alloy (For FIG/ITEM 21-200)

General

Price and availability - none

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

For the procedure to clean the parts, refer to TASK 72-45-21-100-000 (CLEANING-000).

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Austenitic stainless steel brushLOCALAustenitic stainless steel brush
Silicon carbide wheelLOCALSilicon carbide wheel
Welding equipmentLOCALWelding equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-378 WELDING WIRELOCALCoMat 03-378
CoMat 03-387 WELDING FILLER WIRELOCALCoMat 03-387

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-220-270 Measure the Oversized Instrumentation Bushing Bore on the Turbine Exhaust Case

    1. Refer to Figure.

    2. Do a check of the diameter at four equal distance apart locations of each oversized instrumentation bushing bore to make sure that each bore is not out of round more than 0.0008 in. (0.020 mm).

    3. If necessary, machine the bore round and do the steps 4.B. and 4.C. again.

      4. Clean the Turbine Exhaust Case.

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

    5. Measure and record the diameter of each oversized instrumentation bushing bore to find the after weld diameter of the mating instrumentation bushing.

    2. SUBTASK 72-50-53-350-220 Prepare the Bushing Detail for Weld

    1. Refer to Figure and Figure.

    2. Prepare the repair area for weld. Use a rotary austenitic stainless steel wire brush or silicon carbide abrasive wheels to remove oxide.

      3. Clean the repair area.

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

    3. SUBTASK 72-50-53-310-089 Weld Build-Up the Bushing Detail

    1. Refer to Figure and Figure.

    2. Weld the repair area by one of the procedures that follow:

      3. If you weld FIG/ITEM 02-140, use the Manual Gas Tungsten Arc Weld (GTAW-MA) procedure.

      1. Refer to the SPM TASK 70-31-13-310-501, IAE 16-2. Use CoMat 03-378 WELDING WIRE.

      4. If you weld FIG/ITEM 21-200, use the Manual Gas Tungsten Arc Weld (GTAW-MA) procedure.

    4. SUBTASK 72-50-53-370-106 Heat Treat the Welded Bushing Detail

    1. Heat treat the bushing by one of the procedures that follow:

    2. For FIG/ITEM 02-140, heat treat the bushing by the procedures that follow:

    3. Hold in air between 450 and 650 deg F (232 and 343 deg C) for two hours.

    4. Heat treatment must be done in 24 hours of weld, and it is recommended to do heat treat in 12 hours of weld.

    5. For FIG/ITEM 21-200, heat treat the bushing at 1375 to 1425 deg F (746 to 774 deg C) for two hours and air cool.

    5. SUBTASK 72-50-53-320-177 Finish Machine the Welded Bushing Detail

    1. Refer to Figure and Figure.

    2. Finish the outer diameter of the bushing by one of the procedures that follow:

    3. For FIG/ITEM 02-140, Grind the outer diameter of the bushing detail to get 0.0000 to 0.0012T in. (0.000 to 0.030T mm) interference fit.

    4. For FIG/ITEM 21-200, Machine or grind the outer diameter of the bushing detail to get 0.0000 to 0.0012T in. (0.000 to 0.030T mm) interference fit.

    6. SUBTASK 72-50-53-110-192 Clean the Bushing Detail

      1. Clean the bushing detail.

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

    7. SUBTASK 72-50-53-230-147 Do a Fluorescent Penetrant Inspection of the Bushing Detail

      1. Do a fluorescent penetrant inspection of the bushing detail.

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

    8. SUBTASK 72-50-53-220-271 Do a Dimensional Inspection of the Bushing Detail

    1. Refer to Figure and Figure.

    2. Do a dimensional inspection of the bushing detail.

    9. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions (PN 4P8009)

    Repair Details and Dimensions (PN 4P8009)

    Figure: Repair Details and Dimensions (PN 2A2165)

    Repair Details and Dimensions (PN 2A2165)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-378
Type:sp01
Supply Short Name:CoMat 03-378 WELDING WIRE
Supply Name:CoMat 03-378 WELDING WIRE
Specification Groups:
Doc NumberType
AMS 5817GREEK ASCOLOY
Suppliers:
ManufacturerRemarks
LOCAL
2R602
55596
58401
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:Austenitic stainless steel brush
Tool Name:Austenitic stainless steel brush
Manufacturer Code:LOCAL
Tool Number:Silicon carbide wheel
Tool Name:Silicon carbide wheel
Manufacturer Code:LOCAL
Tool Number:Welding equipment
Tool Name:Welding equipment