TASK 72-50-53-300-059 Turbine Exhaust Case (TEC) - Chromium Plate The No. 5 Bearing Shoulder, Repair-059 (VRS3114)

DMC:V2500-A0-72-50-5301-06A-647A-C|Issue No:002.00|Issue Date:2014-11-01

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 72-50-53-300-059 Turbine Exhaust Case (TEC) - Chromium Plate The No. 5 Bearing Shoulder, Repair-059 (VRS3114)

Effectivity

FIG/ITEM PART NO.

21-300

2A1209-01

21-300

2A2620-01

21-300

2A3111-01

21-300

2A3183-01

21-300

2A3455-01

21-300

2A3183-101

21-300

2A4258-01

21-300

2A4263-01

Material of component

PART IDENT

SYMBOL

MATERIAL

Turbine Exhaust Case

-

Corrosion and heat resistant steel

General

Price and availability - refer to IAE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Grinding machineLOCALGrinding machine
FurnaceLOCALFurnace
PlugsLOCALPlugs

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-350-092 Install Plugs into the Holes around the Repair Area

    1. Install plugs into the holes around the repair area before you machine the No. 5 bearing shoulder.

    2. SUBTASK 72-50-53-320-086 Machine the No. 5 Bearing Shoulder of the Turbine Exhaust Case

    1. Refer to Figure.

      2. If there is chromium plate:

      1. Remove the chromium plate that is on the part by the SPM TASK 70-33-02-300-503. If chromium plate was not removed fully by the SPM TASK 70-33-02-300-503, then you do a grind operation to remove the chromium plate.

      3. If there is no chromium plate, machine the No. 5 bearing shoulder.

      1. The dimension from the bearing shoulder to Surface A must be 4.554 in. (115.67 mm) maximum.

        Keep the removal of material to the minimum necessary to remove damage, make the surface smooth and to permit sufficient plating thickness.

    3. SUBTASK 72-50-53-110-197 Clean the Turbine Exhaust Case

      1. Clean the turbine exhaust case.

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

    4. SUBTASK 72-50-53-230-149 Examine the Turbine Exhaust Case

      1. If you did a grind operation to remove chromium plate, then you do a local fluorescent penetrant inspection of the repair area.

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

        Use medium sensitivity, water washable.

        No cracks permitted.

    5. SUBTASK 72-50-53-110-198 Clean the Repair Area of Turbine Exhaust Case

      1. Clean the repair area locally.

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

    6. SUBTASK 72-50-53-330-062 Chromium Plate the No. 5 Bearing Shoulder of the Turbine Exhaust Case

    1. Refer to Figure.

      2. Apply a mask or maskants to the areas not to be plated.

      1. Refer to the SPM TASK 70-38-24-380-501.

      3. Chromium plate the No. 5 bearing shoulder.

      1. Refer to the SPM TASK 70-33-02-300-503.

        Apply chromium plate to a sufficient thickness to permit finish machining.

        Plating thickness after finish machining must be 0.002 to 0.008 in. (0.05 to 0.20 mm).

        Plating outside the repair area is permitted but must be removed.

    4. Remove the mask or maskants.

    7. SUBTASK 72-50-53-370-070 Bake after Chromium Plate

      1. Bake the turbine exhaust case after chromium plate.

      1. Refer to the SPM TASK 70-33-02-300-503.

    8. SUBTASK 72-50-53-220-276 Examine the Turbine Exhaust Case

      1. Do a visual inspection of the plate for finish and bond.

      1. Refer to the SPM TASK 70-33-02-220-502.

    9. SUBTASK 72-50-53-320-087 Grind the No. 5 Bearing Shoulder of the Turbine Exhaust Case

    1. Refer to Figure.

    2. Do a grind operation of the No. 5 bearing shoulder after chromium plate.

    10. SUBTASK 72-50-53-110-101 Clean the Turbine Exhaust Case

      1. Clean the turbine exhaust case.

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

    11. SUBTASK 72-50-53-220-277 Examine the Repair

      1. Visually examine the plated area for cracks and plating that is not attached to the base metal.

      1. Refer to the SPM TASK 70-33-02-220-502.

    12. SUBTASK 72-50-53-350-223 Identify the Repair

      1. Mark VRS3114 on the repaired turbine exhaust case adjacent to the part number.

      1. Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501.

        Use vibration peen procedure. Remove high material caused by marking the number.

    13. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial revision due to conversion.

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Tool Number:Furnace
Tool Name:Furnace
Link not Found
Manufacturer Code:LOCAL
Tool Number:Plugs
Tool Name:Plugs
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment