TASK 72-38-25-300-001 Bifurcation Panel - Repair Surface Damage By Material Removal, Repair-001 (VRS6373)

DMC:V2500-A0-72-38-2501-00A-649A-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 72-38-25-300-001 Bifurcation Panel - Repair Surface Damage By Material Removal, Repair-001 (VRS6373)

Effectivity

FIG/ITEM

PART NO.

01-300

6A3361

01-300

6A3756

01-300

6A4106

01-300

6A4624

01-300

6A7930

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Panel - Disconnect, core engine

TAK

Commercially pure

to fancase assembly

titanium

General

This Repair must only be done when the instruction to do so is given in 72-38-25, Inspection.

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

Price and availability

Refer to International Aero Engines.

NOTE

Equivalent materials or equipment can be used.
More equipment and materials necessary to do this repair are in the SPM TASKS given below:
TASK 70-11-26-300-503, TASK 70-09-00-400-501 and TASK 70-35-03-300-501

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Standard workshop equipmentLOCALStandard workshop equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-077 WATERPROOF SILICON CARBIDEK6835CoMat 05-077
CoMat 05-080 WATERPROOF SILICON CARBIDE44197CoMat 05-080
CoMat 05-084 WATERPROOF SILICON CARBIDE44197CoMat 05-084

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-38-25-110-053 Clean the Panel - Disconnect, Core Engine to Fancase Assembly

      1. Chemically clean the panel.

      1. Refer to the SPM TASK 70-11-26-300-503, SUBTASK 70-11-26-300-002.

    2. SUBTASK 72-38-25-220-060 Examine the Panel - Disconnect, Core Engine to Fancase Assembly

      1. Visually examine the panel, for surface damage.

      1. Refer to TASK 72-38-25-200-001 for inspection standards.

      2. Measure the dimensions of surface damage in 'A'.

      1. Refer to TASK 72-38-25-200-001 for inspection limits.

    3. SUBTASK 72-38-25-350-051 Remove Surface Damage

    1. Refer to: Figure

      2. CAUTION

        TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS AND POLISH THIS COMPONENT.
        TITANIUM COMPONENT - DO NOT USE FORCE WITH MECHANICAL CUTTERS OR THE MATERIAL BECOMES TOO HOT.
        TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR, TO DARKER THAN LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.

        Remove area(s) of surface damage.

      1. Refer to the SPM TASK 70-35-03-300-501.

      3. Use standard workshop equipment.

      4. The diameter of the repaired area must be 50 x D, where 'D' is the maximum depth of material removed and must not be more than 0.005 in. (0.13 mm).

      3. Make smooth the repaired area(s).

      1. Refer to the SPM TASK 70-35-03-300-501.

      3. Use standard workshop equipment.

      4. Remove sharp corners and make sure damage marks are fully removed.

      4. Polish the repaired area(s).

      1. Refer to the SPM TASK 70-35-03-300-501.

      3. Use standard workshop equipment.

      4. Polish to remove all marks.

    4. SUBTASK 72-38-25-220-061 Examine the Panel - Disconnect, Core Engine to Fancase Assembly

    1. Refer to Figure

      2. Visually examine and measure the dimensions of the repaired area(s).

      1. Make sure the maximum depth of the repaired area(s) is not more than 0.005 in. (0.13 mm).

      2. Use workshop inspection equipment.

    5. SUBTASK 72-38-25-350-052 Identify the Repair

      1. Make a mark VRS6373 adjacent to the assembly number.

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

    6. Figure: Repair details and dimensions

    Repair details and dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added new part number to the effectivity table. (EA14VC223)

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:K6835
Enterprise Name:MED-LAB LTD
BU Name:MED-LAB LTD
Street:COPELAND ST
City:DERBY
Zip Code:DE1 2PU
Country:GREAT BRITAIN
Phone Number:44-1332-349094
Fax Number:44-1332-371237
Email:sales@med-lab.co.uk
Internet:www.med-lab.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:1E1X8
Supply Number:CoMat 05-077
Type:sp01
Supply Short Name:CoMat 05-077 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-077 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/32 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 360
JCR-185 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-080
Type:sp01
Supply Short Name:CoMat 05-080 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-080 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/37 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 180 (ANSI B74.18)
JCR-190 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-084
Type:sp01
Supply Short Name:CoMat 05-084 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-084 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/41 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 80 (ANSI B74.18)
JCR-194 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment