TASK 72-50-53-300-078 Turbine Exhaust Case (TEC) - Plasma Spray Repair The Rear Face Of The Rear Outer Flange, Repair-078 (VRS3732)

DMC:V2500-A0-72-50-5301-04A-609A-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 72-50-53-300-078 Turbine Exhaust Case (TEC) - Plasma Spray Repair The Rear Face Of The Rear Outer Flange, Repair-078 (VRS3732)

Effectivity

FIG/ITEM

PART NO.

02-300

4B8060

02-300

4B8068

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

AMS 5616 Stainless steel

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
Workshop inspection equipmentLOCALWorkshop inspection equipment
FurnaceLOCALFurnace

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-097 LINT-FREE GLOVESLOCALCoMat 02-097
CoMat 03-096 PLASMA SPRAY POWDERLOCALCoMat 03-096
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-320-149 Machine the Rear Face of the Rear Outer Flange

    1. Refer to Figure.

    2. Remove the plasma spray from the rear face.

      3. Machine the rear face of the outer flange.

      1. Machine the rear face to remove wear or damage. Keep the removal of material to the minimum necessary to permit finish machining. Flange thickness must be not less than 0.120 in. (3.05 mm) after you remove the damage.

    2. SUBTASK 72-50-53-230-130 Examine the Turbine Exhaust Case

      1. Fluorescent penetrant inspect the turbine exhaust case.

      1. No cracks are permitted.

        NOTE

        This step is required if the method of machining used in Step (4) was grinding. For all other methods, this step is optional.

    3. SUBTASK 72-50-53-340-054 Prepare the Rear Face of the Outer Flange for Coating

      CAUTION

      YOU MUST DO THE GRIT BLAST AGAIN IF YOU WAIT LONGER THAN TWO HOURS. IF YOU DO NOT SO PREPARED SURFACES CAN BE CONTAMINATED.

      1. Prepare surface for plasma and other thermal spray.

      1. Refer to the SPM TASK 70-34-18-380-501.

      2. Apply a mask to areas of turbine exhaust case that are not to be plasma sprayed.

      1. No coating is permitted in the holes.

      3. Clean the turbine exhaust case.

      1. Clean with dry airblast.

        Move the case with clean lint-free gloves after you clean the case.

    4. SUBTASK 72-50-53-340-055 Plasma Spray the Rear Face of the Rear Outer Flange of the Turbine Exhaust Case

    1. Refer to Figure.

      2. Plasma spray the rear face of the rear outer flange.

      1. Refer to the SPM TASK 70-34-03-340-501.

        Apply plasma spray to a sufficient thickness to permit finish machining.

        No overspray is permitted.

    3. Remove the mask. Clean the remaining adhesive.

    5. SUBTASK 72-50-53-320-152 Finish Machine the Rear Face of the Rear Outer Flange

    1. Refer to Figure.

      2. Machine the rear face of the rear outer flange.

      1. The rear face of the rear outer flange must be between 11.590 to 11.610 in. (294.39 to 294.89 mm) from datum A.

        The coating thickness must be not less than 0.003 in. (0.08 mm).

    6. SUBTASK 72-50-53-220-243 Examine the Turbine Exhaust Case

      1. Do a visual inspection of the coated area.

      1. Chips, cracks, lifted material or coating that is not attached to the base metal are not permitted.

    7. SUBTASK 72-50-53-350-195 Identify the Repair

      1. Vibration peen VRS3070 adjacent to the part number.

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

        Use vibration peen method with depth not more than 0.006 in. (0.15 mm).

    8. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Supply Number:CoMat 02-097
Type:sp01
Supply Short Name:CoMat 02-097 LINT-FREE GLOVES
Supply Name:CoMat 02-097 LINT-FREE GLOVES
Specification Groups:
Doc NumberType
DELETED. USE COMAT 02-100.
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Supply Number:CoMat 03-096
Type:sp01
Supply Short Name:CoMat 03-096 PLASMA SPRAY POWDER
Supply Name:CoMat 03-096 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
AMPERIT 298.442 OR AMPERIT 299.442
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE252
Manufacturer Code:X222X
Supply Number:CoMat 06-064
Type:sp01
Supply Short Name:CoMat 06-064FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Supply Name:CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐064 letter suffix material with other CoMat 06‐064 letter suffix materials.Where CoMat 06‐064 is specified with no suffix, use one of the CoMat 06‐064 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:LOCAL
Tool Number:Furnace
Tool Name:Furnace
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment