TASK 72-45-27-300-001 HPT Stage 2 Support Seal - Restore The Coating, Repair-001 (VRS3322)

DMC:V2500-A0-72-45-2702-00A-609A-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 72-45-27-300-001 HPT Stage 2 Support Seal - Restore The Coating, Repair-001 (VRS3322)

Effectivity

FIG/ITEM

PART NO.

01-060

2A0161

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Stage 2 HPT seal

Nickel alloy

General

The repair must only be done when the instruction to do so is given in 72-45-27 Inspection/Check.

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

Price and availability - none

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-047 TAPE, HEAT REFLECTIVE52152CoMat 02-047
CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE76381CoMat 02-050
CoMat 03-079 PLASMA SPRAY POWDERIE426CoMat 03-079

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-45-27-350-051 Restore the Stage 2 HPT Seal Coating

      1. Apply masking tape to the seal.

      1. Refer to Figure.

      2. Mask the seal by the procedure given in the SPM TASK 70-34-18-380-501.

      2. Machine or grind to remove worn, chipped or damaged coating from the seal contact surfaces.

      1. Refer to Figure.

      2. Grind by the procedure given in SPM TASK 70-32-07-100-501.

      3. Remove the minimum amount of parent material necessary to do the repair.

      3. CAUTION

        REMOVAL OF COATING BY MANUAL GRIT BLASTING METHOD IS NOT PERMITTED.

        Remove worn, chipped or damaged coating by automated grit blasting. (Optional)

      1. Refer to Figure.

      2. The proprietary nature of this repair requires that any facility not authorized to accomplish this repair either utilize the Authorized Repair Vendors listed below or contact the IAE Repair Development Group to determine if a qualification program can be initiated at their facility.

        IAE - International Aero Engines AG
        400 Main Street, MailStop 121-10
        East Hartford, CT 06118
        USA
        Email: gpiaecomms@iaev2500.com
        ATTN: Manager, Maintenance Operations

      3. Authorized repair vendors for Repair VRS3322 are listed below.

        None

      4. The designation by IAE of an authorized vendor indicates that the repair vendor has demonstrated the necessary capability to enable it to carry out the listed repair work. However, IAE makes no warranties or representations concerning the qualifications or quality standards of the repair vendors to carry out the repair work and accepts no responsibility whatsoever for any work that may be carried out by a repair vendor, other than when IAE is listed as the repair vendor. Authorized repair vendors do not act as agents or representatives of IAE.

      4. Remove worn, chipped or damaged coating by high pressure water blasting. (Optional)

      1. Refer to Figure.

      2. High pressure water blast by the procedure given in SPM TASK 70-15-01-160-501.

      5. If a grinding procedure was done, clean the seal.

      1. Clean the seal by the procedure given in SPM TASK 70-11-03-300-503.

      6. If a grinding procedure was done, do a fluorescent penetrant inspection of the seal.

      1. Refer to INSPECTION-001 TASK 72-45-27-200-001-A00.

      7. Examine the seal for the correct diameter and dimensions.

      1. Refer to Figure.

      8. Prepare the repair area for plasma coat.

      1. Refer to Figure.

      2. Grit blast the repair area by the procedure given in SPM TASK 70-34-18-380-501.

      3. Grit blast out of the repair area is not permitted.

      9. Apply CoMat 03-079 PLASMA SPRAY POWDER to the area to be coated.

      1. Refer to Figure.

      2. Plasma coat the repair area by the procedure given in SPM TASK 70-34-03-340-501.

      3. Coat out of the repair area is not permitted.

      10. Remove masking from the seal after it is cool.

      1. Remove the masking tape by the procedure given in SPM TASK 70-34-03-340-501.

      11. If necessary, finish grind the plasma coating to achieve between 0.004 and 0.007 in. (0.102 and 0.177 mm) coating thickness and dimensional requirements.

      1. Refer to Figure.

      2. Finish grind by the procedure given in SPM TASK 70-32-07-100-501.

      12. Clean the seal.

      1. Clean the seal by the procedure given in SPM TASK 70-11-03-300-503.

      13. Examine the plasma coating.

      1. Examine the plasma coating by the procedure given in SPM TASK 70-34-03-340-501.

      14. Examine the seal for the correct diameter and dimensions.

      1. Refer to Figure.

      15. Identify the repair. Make a mark VRS3322 adjacent to the part number.

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

    2. Figure: Stage 2 HPT Seal - Before Coating

    Stage 2 HPT Seal - Before Coating

    Figure: Stage 2 HPT Seal - Plasma Coat Locations

    Stage 2 HPT Seal - Plasma Coat Locations

    Figure: Stage 2 HPT Seal - Dimensions After Coating

    Stage 2 HPT Seal - Dimensions After Coating

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure. (EA13VC115)

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:76381
Enterprise Name:3M COMPANY
BU Name:3M COMPANY
Department:3M CENTER
City:ST PAUL
State:MN
Zip Code:55144-1000
Country:USA
Phone Number:1-651-733-1110
Fax Number:1-651-733-9973
Internet:www.mmm.com
Manufacturer Code:IE426
Enterprise Name:DELETED
BU Name:DELETED,SEE CAGE CODE 1DMQ3
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:X222X
Supply Number:CoMat 02-050
Type:sp01
Supply Short Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Supply Name:CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:IE426
Supply Number:CoMat 03-079
Type:sp01
Supply Short Name:CoMat 03-079 PLASMA SPRAY POWDER
Supply Name:CoMat 03-079 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
PWA 1317AI-1007
Suppliers:
ManufacturerRemarks
IE426
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment