TASK 72-50-53-300-007 Turbine Exhaust Case (TEC) - Replace The No. 5 Bearing Scavenge Oil Tube, Repair-007 (VRS5391)

DMC:V2500-A0-72-50-5301-01A-920A-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 72-50-53-300-007 Turbine Exhaust Case (TEC) - Replace The No. 5 Bearing Scavenge Oil Tube, Repair-007 (VRS5391)

Effectivity

FIG/ITEM

PART NO.

01-001

4A8014

01-001

4A8025

Material of component

PART IDENT

SYMBOL

MATERIAL

Turbine exhaust case

Corrosion and heat resistant steel

Tubes

Corrosion and heat resistant steel

General

Price and availability - none

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

NOTE

To identify the consumable materials, refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Hand toolsLOCALTools, hand
TIG welding equipmentLOCALTIG welding equipment
Brazing equipmentLOCALBrazing equipment
Vibrating marking pencilLOCALVibrating marking pencil
IAE 2F10331 Plug0AM53IAE 2F103311
IAE 2F10332 Bracket0AM53IAE 2F103321
IAE 2F10411 Adapter0AM53IAE 2F104111
IAE 6F10029 Air flow test cart0AM53IAE 6F100291

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-004 INTERM. TEMP. BRAZINGWIRE, 24% AgLOCALCoMat 03-004
CoMat 03-005 BRAZING FLUXLOCALCoMat 03-005
CoMat 03-286 WELDING WIRELOCALCoMat 03-286

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Tube4B80351
Tube4B80471
Tube4B80341

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-350-123 Cut the Scavenge Oil Tube

    1. Refer to: Figure

    2. Slide the scavenge oil tube toward the outer wall of the turbine exhaust case.

      3. Cut the scavenge oil tube outer flange.

      1. Use hand tools.

        Cut the flange along the existing welding line.

      4. Cut the inner portion of the scavenge oil tube.

      1. Use hand tools.

      5. Remove the remaining portion of the tube from the strut.

      1. Slide the tube toward the interior of the casing.

        .

    2. SUBTASK 72-50-53-350-124 Lap the Bearing Compartment Flange

      1. Lap the area of the bearing compartment flange which mates with the oil feed tube flange.

      1. Surface finish must be 32 microin. (0.8 micron).

    3. SUBTASK 72-50-53-310-068 Weld the New Tubes

      1. Place the new tube p/n 4B8034 in position inside the strut.

      1. Adjust the tube if necessary.

      2. Put the new tube p/n 4B8035 in the correct position.

      1. Use positioner.

      3. Attach the new tube p/n 4B8047 to the bearing compartment flange.

      1. Make sure that a clearance of 0.1in. (2.5 mm) exist between the tube p/n 4B8034 and the strut heatshield.

        Adjust the components if necessary.

      4. Tack weld the tubes p/n 4B8034 and 4B8035.

      1. Refer to the SPM TASK 70-31-02-310-501.

        Use CoMat 03-286 WELDING WIRE dia 0.05in. (1.2 mm).

      5. Complete weld the components.

      1. Refer to the SPM TASK 70-31-02-310-501.

        Use CoMat 03-286 WELDING WIRE dia 0.05in. (1.2 mm).

        Welding data:

        Current intensity

        45 to 50 A

        Torch type

        HW20

        Torch nozzle

        No. 6

        Argon flow

        8 1/m

        Electrode

        2% thoriated tungsten

        Electrode dia

        0.095in. (2.4 mm)

    4. SUBTASK 72-50-53-220-207 Inspect the Welding Area

      1. Inspect the weld.

      1. Inspect the weld for a good penetration.

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

        Weld again the areas where the weld condition is not satisfactory.

    5. SUBTASK 72-50-53-310-069 Braze the New Tubes

      1. Braze the new tube p/n 4B8047 to the tube p/n 4B8034.

    6. SUBTASK 72-50-53-220-208 Inspect the Brazed Area

      1. Inspect the brazing.

      1. Inspect the brazed joint.

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

        Do again the brazing if defects have occurred during brazing.

    7. SUBTASK 72-50-53-780-051 Pressure Leak Check the Assembled Tube

    1. Do a pressure leak check of the scavenge oil tube as follows:

    2. Install the IAE 2F10331 Plug into the scavenge oil tube hole in bearing compartment flange.

    3. Install the IAE 2F10332 Bracket to the bearing compartment flange.

    4. Install the IAE 2F10411 Adapter to the scavenge oil tube outer flange.

    5. Connect the IAE 6F10029 Air flow test cart to the adapter.

    6. Apply an oil pressure of 15 psig (100 KPa). Hold the pressure for at least 1 minute.

    7. Release the pressure, disconnect the hose and remove the fixture.

    8. SUBTASK 72-50-53-350-125 Record the Repair

      1. Vibroengrave 'VRS5391' adjacent to the part number.

      1. Remove the metal lifted by marking.

    9. Figure: Repair details

    Repair details

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Link not Found
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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 03-004
Type:sp01
Supply Short Name:CoMat 03-004 INTERM. TEMP. BRAZING WIRE,24% Ag
Supply Name:CoMat 03-004 INTERM. TEMP. BRAZINGWIRE, 24% Ag
Specification Groups:
Doc NumberType
MSRR9500/93MATTIBRAZE 24
OMAT:3/33
Suppliers:
ManufacturerRemarks
LOCAL
91874
IE306
IAE82
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 03-005
Type:sp01
Supply Short Name:CoMat 03-005 BRAZING FLUX
Supply Name:CoMat 03-005 BRAZING FLUX
Specification Groups:
Doc NumberType
MSRR9500/126MATTIFLUX TENACITY NO. 5
OMAT:3/35
Suppliers:
ManufacturerRemarks
LOCAL
IAE82
IE441
K6835
08489
09535
91874
IE306
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
Tool Number:Brazing equipment
Tool Name:Brazing equipment
Manufacturer Code:0AM53
Tool Number:IAE 2F10331
Tool Name:IAE 2F10331 Plug
Manufacturer Code:0AM53
Tool Number:IAE 2F10332
Tool Name:IAE 2F10332 Bracket
Manufacturer Code:0AM53
Tool Number:IAE 2F10411
Tool Name:IAE 2F10411 Adapter
Manufacturer Code:0AM53
Tool Number:IAE 6F10029
Tool Name:IAE 6F10029 Air flow test cart
Manufacturer Code:LOCAL
Tool Number:TIG welding equipment
Tool Name:TIG welding equipment
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment