TASK 72-32-83-300-061 LPC Front Case - Repair The Damaged Bolt Hole At Flange By Bushing, Repair-061 (VRS1616)

DMC:V2500-A0-72-32-8330-00A-664A-C|Issue No:001.00|Issue Date:2017-02-01

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 72-32-83-300-061 LPC Front Case - Repair The Damaged Bolt Hole At Flange By Bushing, Repair-061 (VRS1616)

Effectivity

FIG/ITEM

PART NO.

02-350

5A0458

02-350

5A1864

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC Front Case

Aluminum Alloy

General

This repair scheme gives the procedure for bushing repair at front and rear flange of the LPC Front Case.

Price and availability - none

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Fluorescent penetrant inspection equipmentLOCALFluorescent Penetrant Inspection Equipment
Vibro-engraving equipmentLOCALVibro-engraving equipment
Machining equipmentLOCALMachining equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-275 CHROMATE CONVERSION COATING FOR ALUMINIUMLOCALCoMat 01-275
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-320-053 Machine the Damaged Hole

    1. Refer to Figure and Figure.

      2. Drill the damage hole(s) to remove the damage fully.

      1. Use standard workshop equipment.

      2. Determine center of the hole using the two adjacent holes without damage when drill positioning is done.

      3. At front flange, the minimum distance between the machined hole edge and the flange edge must not be less than 0.060 in. (1.5 mm).

      4. At rear flange, the remaining thickness from the machined hole edge to the outer surface and rear flange inner diameter must be more than 0.04 in. (1.0 mm).

      3. Remove the burr from the repaired area.

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

    2. SUBTASK 72-32-83-220-193 Examine the Machined Hole

    1. Refer to Figure and Figure.

      2. Visually examine the machined hole.

      1. Corrosion, galls, nicks, pits, scratches and burrs are not permitted.

      3. Dimensionally examine the machined hole.

      1. Make sure that the all dimensions are within the limits given in Figure and Figure.

      4. Measure and record the diameter of the machined holes for manufacturing the bush as Diameter A and Diameter B.

      1. Diameter A and Diameter B must not be more than 0.311 in. (7.90 mm).

    5. Measure and record the flange thickness T.

    3. SUBTASK 72-32-83-230-089 Examine the Machined Hole for Cracks

      1. Fluorescent penetrant examine the machined hole.

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

      3. No cracks are permitted.

    4. SUBTASK 72-32-83-380-078 Apply the Surface Protection to Machined hole

      1. Apply the chromate conversion coating to the machined hole.

      1. Use a brush.

      3. Refer to SPM TASK 70-38-02-300-503.

    5. SUBTASK 72-32-83-350-149 Manufacture the Bush

    1. Refer to Figure.

    2. Calculate Diameter D for outer diameter and T1 for thickness of bush.

      3. Manufacture the bush(es) locally.

      1. Use AMS4132.

    6. SUBTASK 72-32-83-220-194 Examine the Manufactured Bush

    1. Refer to Figure.

      2. Visually examine the manufactured bush(es).

      1. Nicks, dents, scratches and burrs are not permitted.

      3. Dimensionally examine the manufactured bush(es).

      1. Make sure that the all dimensions are within the limits given in Figure.

    7. SUBTASK 72-32-83-230-090 Examine the Manufactured Bush for Cracks

      1. Fluorescent penetrant examine the manufactured bush(es).

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

      3. No cracks are permitted.

    8. SUBTASK 72-32-83-380-079 Apply the Surface Protection to Manufactured Bush

      1. Apply the chromate conversion coating to the manufactured bush.

      2. Refer to SPM TASK 70-38-02-300-503.

    9. SUBTASK 72-32-83-350-150 Install the Bush

      1. Heat around the machined hole locally.

      1. Use a hot air gun.

      2. Do not exceed 140 deg F (60 deg C).

    2. Install the bush(es).

    10. SUBTASK 72-32-83-220-195 Examine the Installed Bush

      1. Visually examine the installed bush(es).

      1. Make sure that the bush surface is to be flush or below with the surrounding flange surface.

      2. Loose of bush is not allowed.

    11. SUBTASK 72-32-83-350-151 Identify the Repair

      1. Make a mark VRS1616 adjacent to the part number.

      2. Refer to SPM TASK 70-09-00-400-501.

      2. Apply the chromate conversion coating to the marked area.

      2. Refer to SPM TASK 70-38-02-300-503.

    12. Figure: Repair Details and Dimensions for Damaged Bolt Hole on Front Flange

    Repair Details and Dimensions for Damaged Bolt Hole on Front Flange

    Figure: Repair Details and Dimensions for Damaged Bolt Hole on Rear Flange

    Repair Details and Dimensions for Damaged Bolt Hole on Rear Flange

    Figure: Details of the Manufactured Bush

    Details of the Manufactured Bush

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new repair for VRS1616. (16VJ809)

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
Manufacturer Code:X222X
Supply Number:CoMat 06-064
Type:sp01
Supply Short Name:CoMat 06-064FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Supply Name:CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐064 letter suffix material with other CoMat 06‐064 letter suffix materials.Where CoMat 06‐064 is specified with no suffix, use one of the CoMat 06‐064 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Machining equipment
Tool Name:Machining equipment
Manufacturer Code:LOCAL
Tool Number:Vibro-engraving equipment
Tool Name:Vibro-engraving equipment