TASK 72-41-31-300-017 HPC Front Case - Dowel Holes, Oversize w/Bushing Repair, Repair-017 (VRS9343)

DMC:V2500-A0-72-41-3101-01A-664A-C|Issue No:001.00|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 72-41-31-300-017 HPC Front Case - Dowel Holes, Oversize w/Bushing Repair, Repair-017 (VRS9343)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

01-400

6A4439

A

Material of component

PART IDENT

RR SYMBOL

MATERIAL

HP Compressor Front Case

TEG

Titanium Alloy

General

This repair must only be done when the instruction to do so is given in TASK 72-41-31-200-000 (INSPECTION-000).

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.

Support Equipment

NONE

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 08-122 RETAINING ADHESIVE05972CoMat 08-122

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-31-320-005 Machine to Oversize Dowel Pin Hole(s)

    1. Refer to Figure and Figure.

    2. Oversize damaged dowel pin hole(s) to 0.309 in. - 0.338 in. (7.84 mm - 8.60 mm) to remove damage while ensuring a minimum strap thickness of 0.104 in. (2.64 mm) is maintained.

    3. Break sharp edges 0.004 in. - 0.019 in. (0.10 mm - 0.50 mm).

    2. SUBTASK 72-41-31-110-138 Locally Clean the Repair Area(s)

      1. Locally clean the machined dowel hole(s).

      1. Refer to SPM TASK 70-11-26-300-503.

    3. SUBTASK 72-41-31-230-132 Do a Fluorescent Penetrant Inspection

      1. Do a local penetrant crack test on the repair area(s).

      1. Refer to the SPM TASK 70-23-05-230-501. Use medium sensitivity penetrant.

      2. Cracks are not permitted.

    4. SUBTASK 72-41-31-220-294 Do a Visual and Dimensional Inspection of Repair Area(s)

      1. Refer to Figure and Figure.

      1. Make sure the machined dowel hole(s) are within the specified limits.

      2. Make sure there are no sharp edges.

    5. SUBTASK 72-41-31-350-116 Locally Fabricate Bushing(s)

    1. Refer to Figure.

      2. Locally manufacture bushing(s) to the specified dimensions.

      1. Use MSRR 8652, AMS 4911, or AMS 4928.

    3. Break sharp edges 0.004 in. - 0.019 in. (0.10 mm - 0.50 mm).

    6. SUBTASK 72-41-31-230-133 Do a Fluorescent Penetrant Inspection

      1. Do a penetrant crack test of the fabricated bushing(s).

      2. Cracks are not permitted.

    7. SUBTASK 72-41-31-110-139 Locally Clean the Repair Area(s)

      1. Clean the locally fabricated bushing(s).

      1. Refer to SPM TASK 70-11-03-300-503.

      2. Clean the machined dowel pin hole(s).

      1. Refer to SPM TASK 70-11-26-300-503.

    8. SUBTASK 72-41-31-350-128 Install the Fabricated Bushing(s) Into the Oversized Dowel Pin Hole(s)

    1. Refer to Figure.

      2. Chill the bushing.

      1. Refer to SPM TASK 70-46-04-400-501.

      3. Apply retaining adhesive to the machined dowel pin hole.

      1. Use CoMat 08-122 RETAINING ADHESIVE or suitable alternative.

    4. Install the locally fabricated bushing into the appropriate oversized dowel pin hole while the adhesive is wet. Wipe off any excess adhesive after installation.

    5. Allow the part to reach room temperature.

    9. SUBTASK 72-41-31-320-006 Machine the Bushing Inner Diameter(s)

    1. Refer to Figure.

    2. Machine the installed bushing(s) inner diameter(s) to the specified limits.

    10. SUBTASK 72-41-31-110-140 Clean the Assembly

      1. Chemically clean.

      1. Refer to SPM TASK 70-11-03-300-503.

    11. SUBTASK 72-41-31-220-295 Dimensionally Inspect Repaired Area(s)

    1. Refer to Figure and Figure.

    12. SUBTASK 72-41-31-350-129 Identify the Repair

      1. Vibration peen VRS9343 adjacent to the part number.

      1. Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.

    13. Figure: HP Compressor Front Split Case - Repair Zone - Location 18

    HP Compressor Front Split Case - Repair Zone - Location 18

    HP Compressor Front Split Case - Repair Zone - Location 18

    Figure: HP Compressor Front Split Case - Repair Details and Dimensions - Location 18

    HP Compressor Front Split Case - Repair Details and Dimensions - Location 18

    Figure: HP Compressor Front Split Case - Bushing - Location 18

    HP Compressor Front Split Case - Bushing - Location 18

    Figure: HP Compressor Front Split Case - Installation - Location 18

    HP Compressor Front Split Case - Installation - Location 18

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new repair. (18VG038)

Manufacturer Code:05972
Enterprise Name:HENKEL CORP.
BU Name:HENKEL CORP.
Street:1001 TROUT BROOK CROSSING
City:ROCKY HILL
State:CT
Zip Code:06067-3910
Country:USA
Phone Number:1-800-243-4874, 1-860-571-5100
Fax Number:1-800-344-4503, 1-860-571-5465
Internet:www.aerospace.henkel.com
Manufacturer Code:05972
Supply Number:CoMat 08-122
Type:sp01
Supply Short Name:CoMat 08-122 RETAINING ADHESIVE
Supply Name:CoMat 08-122 RETAINING ADHESIVE
Specification Groups:
Doc NumberType
OMAT 8/74LOCTITE 601
Suppliers:
ManufacturerRemarks
05972