TASK 72-44-50-300-004 HPT Stage 1 Cooling (TOBI) Duct - Axial Dimension Plasma Spray Repair, Repair-004 (VRS3183)

DMC:V2500-A0-72-44-5001-00A-609A-C|Issue No:004.00|Issue Date:2021-02-01

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 72-44-50-300-004 HPT Stage 1 Cooling (TOBI) Duct - Axial Dimension Plasma Spray Repair, Repair-004 (VRS3183)

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

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-047 TAPE, HEAT REFLECTIVELOCALCoMat 02-047
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)33870CoMat 03-089
CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)X111XCoMat 03-090

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
PIN - SHOULDER

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-44-50-320-079 Remove the Locating Pin from the Stage 1 HPT Cooling Duct

    1. Refer to Figure and Figure.

    2. Drill out the flared shank with a bit that is slightly smaller than 0.182 in. (4.6228 mm) diameter.

    3. Use a drift to push out the remaining part of the PIN - SHOULDER that is in the hole.

    2. SUBTASK 72-44-50-330-052 Remove the Coating by Stripping

    1. NOTE

      The stripping procedure is only for TOBI ducts that were repaired per VRS3183 before. If this procedure was done before, VRS3183 will be next to the part number. If the repair was not done before, remove the coating by machining. Refer to SUBTASK 72-44-50-320-054.

      Refer to Figure, Figure, Figure and Figure.

      2. Strip to remove the coating.

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

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

    3. SUBTASK 72-44-50-320-054-A00 Remove the Coating by Machining (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    1. Refer to Figure and Figure.

      2. 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. (0.051 mm) and Diameter L maintains a clearance envelope of 13.040 in. (331.216 mm) diameter in a free or held condition. In a free condition, Surface N must be flat by 0.005 in. (0.127 mm) and Diameter L must be 13.008 in. to 13.059 in. (330.40 mm to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

        Machine to remove the coating.

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

        2. Machine the diameter to be repaired to 0.109 in. to 0.115 in. (2.769 mm to 2.921 mm).

        3. Remove the minimum amount of material possible to keep in the limits given in the figure.

        4. The surface will be shiny when you remove the coating by machine.

    4. SUBTASK 72-44-50-320-054-B00 Remove the Coating by Machining (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    1. Refer to Figure and Figure.

      2. 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. (0.051 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 in. to 13.059 in. (330.40 mm to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

        Machine to remove the coating.

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

        2. Machine the diameter to be repaired to 0.169 in. to 0.175 in. (4.29 mm to 4.45 mm).

        3. Remove the minimum amount of material possible to keep in the limits given in the figure.

        4. The surface will be shiny when you remove the coating by machine.

    5. SUBTASK 72-44-50-340-052 Plasma Spray Repair the Axial Dimension

    1. Refer to Figure, Figure, Figure and Figure.

      2. Plasma spray the axial dimension.

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

        1. No overspray is permitted.

        2. The thickness of the plasma spray must be 0.010 in. to 0.020 in. (0.254 mm to 0.508 mm).

    6. SUBTASK 72-44-50-320-055-A00 Machine the Axial Dimension after Plasma Spray (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    1. Refer to Figure and Figure.

      2. 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. (0.051 mm) and Diameter L maintains a clearance envelope of 13.040 in. (331.216 mm) diameter in a free or held condition. In a free condition, Surface N must be flat by 0.005 in. (0.127 mm) and Diameter L must be 13.008 in. to 13.059 in. (330.40 mm to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

        Machine the axial dimension after plasma spray.

        1. Machine the dimension to 0.119 in. to 0.123 in. (3.023 mm to 3.124 mm).

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

        2. Break the edges 0.003 in. to 0.015 in. (0.08 mm to 0.38 mm).

    7. SUBTASK 72-44-50-320-055-B00 Machine the Axial Dimension after Plasma Spray (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    1. Refer to Figure and Figure.

      2. 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 mm to 331.70 mm). Hold the duct only on Surfaces N, M and W, and Diameter L.

        Machine the axial dimension after plasma spray.

        1. Machine the dimension to 0.179 in. to 0.183 in. (4.55 mm to 4.65 mm).

        1. The minimum thickness of the plasma coat must be 0.003 in. (0.08 mm) after machining.

        2. Break the edges 0.003 in. to 0.015 in. (0.08 mm to 0.38 mm).

    8. SUBTASK 72-44-50-220-074 Examine the Repair

    1. Refer to Figure, Figure and Figure.

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

    9. SUBTASK 72-44-50-350-063 Identify the Repair

      1. NOTE

        If VRS3183 is marked on the duct, it is not necessary to do this procedure.

        Mark VRS3183 adjacent to the part number.

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

        1. Use the vibration peen method.

    10. SUBTASK 72-44-50-350-088 Install a New Locating Pin to the Stage 1 HPT Cooling Duct

    1. Refer to Figure and Figure.

      2. Install a new PIN - SHOULDER to the duct in the correct position in the flange hole.

      1. Use an applicable flaring tool to flare the locating pin to install it tightly.

    11. Figure: Repair Details and Dimensions (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    Sheet 1

    Legend
    Repair Details and Dimensions (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    Sheet 1

    Close

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    Sheet 2

    Legend
    Repair Details and Dimensions (PNs 2A0008-01, 2A1997-01, and 2A1997-002)

    Sheet 2

    Close

    Figure: Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Legend
    4

    Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Sheet 1

    Close

    Figure: Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Legend
    5

    Repair Details and Dimensions (PNs 2A1997-001, 2A1997-003, 2A2141-01, 2A3180-01, 2A3329-01, 2A3487-01, 2A3487-001, 2A3491-01, 2A3914-01, 2A3914-001, and 2A4086)

    Sheet 2

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised subtask titles and figure titles to add part numbers. (20VC234)

Link not Found
Manufacturer Code:33870
Enterprise Name:PRAXAIR SURFACE TECHNOLOGIES INC.
BU Name:PRAXAIR SURFACE TECHNOLOGIES INC.
Street:1500 POLCO STREET
City:INDIANAPOLIS
State:IN
Zip Code:46222
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Link not Found
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