TASK 72-44-50-300-007 HPT Stage 1 Cooling (TOBI) Duct - Front Snap Diameter Plasma Spray Repair, Repair-007 (VRS3307)

DMC:V2500-A0-72-44-5001-03A-609A-C|Issue No:001.00|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 72-44-50-300-007 HPT Stage 1 Cooling (TOBI) Duct - Front Snap Diameter Plasma Spray Repair, Repair-007 (VRS3307)

Effectivity

FIG/ITEM PART NO.

01-010

2A0008-01

01-010

2A1997-01

01-010

2A1997-001

01-010

2A1997-002

01-010

2A1997-003

01-010

2A2141-01

01-010

2A3180-01

01-010

2A3329-01

01-010

2A3487-01

01-010

2A3487-001

01-010

2A3491-01

01-010

2A3914-01

01-010

2A3914-001

01-010

2A4086

Material of component

PART IDENT

SYMBOL

MATERIAL

Stage 1 HPT cooling (TOBI)

duct assembly

-

Nickel alloy

General

Price and availability - refer to IAE

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

NOTE

To identify the consumable materials refer to PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Grinding equipmentLOCALGrinding equipment
Machining equipmentLOCALMachining equipment
Plasma spray equipmentLOCALPlasma spray equipment
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-047 TAPE, HEAT REFLECTIVE52152CoMat 02-047
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)00741CoMat 03-089
CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)0AM53CoMat 03-090

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-50-330-054 Remove the Coating by Stripping

      NOTE

      The stripping procedure is only for TOBI ducts that were repaired per VRS3307 before. If this procedure was done before, VRS3307 will be next to the part number. If the repair was not done before, remove the coating by machining. Refer to Step.

    1. Refer to: Figure

      2. Strip to remove the coating from Diameter L.

      1. Apply a mask to the areas not to be coated.

        Strip the coating by the procedure given in the SPM TASK 70-33-78-300-503.

    2. SUBTASK 72-44-50-320-058 Remove the Coating by Machining

    1. Refer to Figure and Figure.

      2. Machine to remove the coating from Diameter L.

      1. Apply a mask to the areas not to be coated.

        Machine the diameter to 13.010 to 13.024 in. (330.45 to 330.81 mm).

        Remove the minimum quantity of material possible to keep the limits.

        When you remove the coating by machine, the surface will be shiny when the coating is removed.

        NOTE

        If the measured dimension in a free condition is not satisfactory, a held condition is permitted. All dimensions apply when Surface N is flat by 0.002 in. (0.05 mm) and Diameter L maintains a clearance envelope of 13.040 in. (331.22 mm) diameter in a free or held condition. In a free condition, Surface N must be flat by 0.005 in. (0.13 mm) and Diameter L must be 13.008 to 13.059 in. (330.40 to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

    3. SUBTASK 72-44-50-340-054 Plasma Spray the Front Snap Diameter

    1. Refer to: Figure

      2. Plasma spray the front snap diameter.

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

        No overspray is permitted.

        The thickness of the plasma spray must be 0.010 to 0.030 in. (0.254 to 0.762 mm).

    4. SUBTASK 72-44-50-320-055 Machine the Front Snap Diameter after Plasma Spray

    1. Refer to: Figure

      2. Machine the front snap diameter after plasma spray.

      1. Machine the dimension to 13.033 to 13.039in. (331.038 to 331.191 mm).

        The minimum thickness of the plasma coat must be 0.003in. (0.076 mm) after machining.

        Break the edges 0.003 to 0.015in. (0.076 to 0.381 mm).

        NOTE

        If the measured dimension in a free condition is not satisfactory, a held condition is permitted. All dimensions apply when Surface N is flat by 0.002in. (0.051 mm) and Diameter L maintains a clearance envelope of 13.040in. (331.216 mm) diameter in a free or held condition. In a free condition, Surface N must be flat by 0.005in. (0.127 mm) and Diameter L must be 13.008 to 13.059in. (330.40 to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

    5. SUBTASK 72-44-50-220-107 Examine the Repair

    1. Refer to: Figure

    2. Do a dimensional and visual inspection on the plasma spray area.

    6. SUBTASK 72-44-50-350-065 Identify the Repair

      NOTE

      If VRS3307 is marked on the duct, it is not necessary to do this procedure.

      1. Mark VRS3307 adjacent to the part number.

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

        Use the vibration peen method.

    7. Figure: Repair Details and Dimensions

    Sheet 1

    Legend
    Repair Details and Dimensions

    Sheet 1

    Close

    Figure: Repair Details and Dimensions

    Sheet 2

    Legend
    Repair Details and Dimensions

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:00741
Enterprise Name:Was BOC GASES
BU Name:DELETED, REFER TO SUPPLIER CODE 46AN7
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:52152
Enterprise Name:3M COMPANY
BU Name:3M CENTER
Department:INDUSTRIAL TAPE AND SPECIALTIES DIV.
Street:BUILDING 220-7W-03
City:ST. PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110, 1-800-362-3550, 1-800-223-7427
Fax Number:1-651-737-4380
Internet:www.mmm.com, www.3m.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X222X
Supply Number:CoMat 02-047
Type:sp01
Supply Short Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Supply Name:CoMat 02-047 TAPE, HEAT REFLECTIVE
Specification Groups:
Doc NumberType
If CoMat 02- 047 is specified with no suffix, use one of the CoMat 02-047 letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:33870
Supply Number:CoMat 03-089
Type:sp01
Supply Short Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Supply Name:CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
PWA 1337 (PW REF)NI-109 or NI-970 or AI 1037
Suppliers:
ManufacturerRemarks
33870
Manufacturer Code:X111X
Supply Number:CoMat 03-090
Type:sp01
Supply Short Name:CoMat 03-090 METAL SPRAYING POWDER Ni/Al(95/5)
Supply Name:CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)
Specification Groups:
Doc NumberType
DELETED Use CoMat 03-089
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Tool Number:Grinding equipment
Tool Name:Grinding equipment
Manufacturer Code:LOCAL
Tool Number:Machining equipment
Tool Name:Machining equipment
Manufacturer Code:LOCAL
Tool Number:Plasma spray equipment
Tool Name:Plasma spray equipment
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment