TASK 72-32-76-300-023 LPC Stage 2.5 Stator - Blend Repair The Surfaces And BoltHoles, Repair-014 (VRS1858)

DMC:V2500-A5-72-32-7600-00A-649A-C|Issue No:002.00|Issue Date:2020-02-01

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 72-32-76-300-023 LPC Stage 2.5 Stator - Blend Repair The Surfaces And BoltHoles, Repair-014 (VRS1858)

Effectivity

FIG/ITEM

PART NO.

01-400

5R0097

01-400

5R0189

Material of component

PART IDENT

SYMBOL

MATERIAL

Ring, shroud outer

Aluminum alloy

Vane, A/O STG 2.5

Aluminum alloy

Ring, A/O inner

Aluminum alloy

General

Price and availability - Refer to IAE.

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

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Other consumable materials are given in SPM TASK 70-23-05-230-501 and SPM TASK 70-38-02-300-503.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment
Portablegrinding equipmentLOCALPortable grinding equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM00BB6CoMat 01-275
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-76-350-081 Dress to Remove the Damage at Location 1

      1. Remove all thread mark or corrosion on the outer shroud boltholes.

        1. Refer to Figure.

        2. Remove all damages by minimum amount of material.

        3. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to make smooth surface at the repaired area.

      1. Surface finish must be the same as adjacent original surface.

      2. Refer to SPM TASK 70-35-03-300-501.

      3. Examine the hole diameter at repaired boltholes.

      1. Make sure the hole diameter at repaired area is less than 0.269 in. (6.82 mm).

    2. SUBTASK 72-32-76-350-082 Remove the Damage at Location 2

      1. Remove all nicks or scores on the flow path area of the outer shroud inner surface.

        1. Refer to Figure.

        2. Maximum blend limit is 0.010 in. (0.25 mm) in depth.

        3. The blend ratio should be 15:1 minimum.

        4. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to make smooth surface at repaired area.

      1. Maximum blend limit is 0.010 in. (0.25 mm) in depth.

      2. Surface finish must be the same as that of the adjacent original surface.

      3. Refer to SPM TASK 70-35-03-300-501.

    3. SUBTASK 72-32-76-350-083 Remove the Damage at Location 3 Thru 5

      1. Remove all nicks, scores or corrosion on the platform, inner ring surface and boltholes.

        1. Refer to Figure.

        2. The maximum blend limit is 0.005 in. (0.12 mm) in depth.

        3. The blend ratio should be 15:1 minimum.

        4. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to make smooth surface at repaired area.

      1. Maximum blend limit is 0.005 in. (0.12 mm) in depth.

      2. Surface finish must be the same as that of the adjacent original surface.

      3. Refer to SPM TASK 70-35-03-300-501.

    4. SUBTASK 72-32-76-350-084 Remove the Damage at Location 6

      1. Remove all nicks, scores, gouges, broken or missing material on the channel.

        1. Refer to Figure and Figure.

        2. Remove all damage and sudden changes from the damaged area.

        3. Remove only the minimum amount of material.

        4. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to make smooth surface at repaired area.

      1. Surface finish must be the same as that of the adjacent original area.

      2. Refer to SPM TASK 70-35-03-300-501.

    5. SUBTASK 72-32-76-220-152 Examine the Repaired Area at Location 6

    1. Refer to Figure and Figure.

      2. Do a visual inspection on the repaired area.

        1. Make sure that the repaired area is stable.

        1. If necessary, do Step again.

      3. Examine the bonding of the sealing strip.

        1. Lightly pull the sealing strip to ensure bonding.

        1. If necessary, remove the sealing strip and remaining sealant material.

        2. Repair, VRS1876 TASK 72-32-76-300-017 (REPAIR-017), if the sealing strip is removed.

      4. Examine the repaired channel.

        1. Refer to Figure.

          1. Measure the repaired depth of radial direction, if the blending is at the base area of the sealing strip.

            1. Less than 0.079 in. (2.00 mm) in depth.

            1. Refer to VRS1362, TASK 72-32-76-300-022 (REPAIR-022) for the filling repair of the channel surface.

            2. More than Step.

            1. Reject.

    6. SUBTASK 72-32-76-350-085 Remove the Damage at Locations 7 and 8

      1. Remove all nicks, scores, dents, or corrosion on the outer shroud at Location 7.

        1. Refer to Figure.

        2. The maximum blend limit is 0.020 in. (0.50 mm) in depth.

        3. Remove only the minimum amount of material.

        4. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to remove gouge on the flange rim of outer shroud at Location 8.

        1. Refer to Figure 3.

        2. The maximum blend limit is 0.047 in. (1.20 mm) in depth.

        3. Maximum blend depth for axial damage is measured from outside flange rim surface to blended surface. The corner damage must be measured from blended surface to right angle to corner of outside flange rim surface. Blend depth of radial direction is same as Location 7.

        4. The blend ratio should be 15:1 minimum.

        5. Refer to SPM TASK 70-35-03-300-501.

      3. Blend to make smooth surface at repaired area.

      1. Surface finish must be the same as that of the adjacent original surface.

      2. Refer to SPM TASK 70-35-03-300-501.

    7. SUBTASK 72-32-76-350-086 Remove the Damage at Other Location

      1. Remove all nicks, scores or corrosion on the other surface of LPC No. 2.5 Stator Assembly.

        1. Refer to Figure.

        2. The maximum blend limit is 0.005 in. (0.12 mm) in depth.

        3. The blend ratio should be 15:1 minimum.

        4. Refer to SPM TASK 70-35-03-300-501.

      2. Blend to make smooth surface at repaired area.

      1. Maximum blend limit is 0.005 in. (0.12 mm) in depth.

      2. Surface finish must be the same as that of the adjacent original surface.

      3. Refer to SPM TASK 70-35-03-300-501.

    8. SUBTASK 72-32-76-110-064 Clean the Repaired Area

      1. Clean the dressed area.

      1. Refer to TASK 72-32-76-100-000 (CLEANING-000).

    9. SUBTASK 72-32-76-230-061 Examine the Repaired Area for Cracks

      1. Do a penetrant crack test for the dressed area.

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

        1. Make sure there are no cracks in the repaired area.

    10. SUBTASK 72-32-76-380-059 Reprotect the Repaired Area

    11. SUBTASK 72-32-76-220-153 Examine the Repaired Area

      1. Do a visual inspection on the repaired area.

      1. Refer to TASK 72-32-76-200-000 (INSPECTION-000).

    12. Figure: LP Compressor Stage 2.5 Vanes

    LP Compressor Stage 2.5 Vanes

    Figure: Detail of the Channel

    Detail of the Channel

    Figure: Detail of the Flange Rim

    Detail of the Flange Rim

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial updates (92VJ823D)

Manufacturer Code:00BB6
Enterprise Name:INDESTRUCTIBLE PAINT INC
BU Name:INDESTRUCTIBLE PAINT INC
Street:1 INDEPENDENCE DRIVE
City:MONROE
State:CT
Zip Code:06468
Country:USA
Phone Number:1-203-880-9130
Fax Number:1-203-880-9133
Email:dave@indestructiblepaint.com
Internet:www.indestructiblepaint.com
Manufacturer Code:44197
Enterprise Name:SAINT-GOBAIN INDUSTRIAL CERAMICS INC.
BU Name:SAINT-GOBAIN ABRASIVES, INC
Street:ONE NEW BOND STREET
P.O. Box:PO BOX 15008
City:WORCESTER
State:MA
Zip Code:01615-0008
Country:USA
Phone Number:1-508-795-5000
Fax Number:1-508-795-2828
Internet:www.saint-gobain-northamerica.com
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:00BB6
Supply Number:CoMat 01-275
Type:sp01
Supply Short Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Supply Name:CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUM
Specification Groups:
Doc NumberType
BONDERITE M-CR-1200S AEROJCR-047 (JAEC REF)
JCR-048 (JAEC REF)SPMC 206 (PW REF)
Suppliers:
ManufacturerRemarks
00BB6
71410
Manufacturer Code:1E1X8
Supply Number:CoMat 05-020
Type:sp01
Supply Short Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-020 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/33 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 320 (ANSI B74.18)
JCR-027 (JAEC REF)
JCR-186 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
LOCAL
K6835
Manufacturer Code:1E1X8
Supply Number:CoMat 05-021
Type:sp01
Supply Short Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-021 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/35 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 240 (ANSI B74.18 )
JCR-188 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Link not Found
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment