TASK 72-31-11-300-007 LPC Fan Blade - Repair The Airfoil Damage, Repair-007 (VRS1002)

DMC:V2500-A0-72-31-1101-00A-649A-C|Issue No:001.00|Issue Date:2014-05-01

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 72-31-11-300-007 LPC Fan Blade - Repair The Airfoil Damage, Repair-007 (VRS1002)

Effectivity

FIG/ITEM

PART NO.

01-300

6A3494

01-300

6A3971

01-300

6A5485

01-300

6A6519

01-300

6A7403

01-300

6A7613

01-300

6A7649

01-300

6A7650

01-300

6A7651

01-300

6A7652

01-300

6A7653

01-300

6A7656

01-300

6A7658

General

Deterioration of SFC and fan balance will occur when fan blades are dressed to this TASK.

The maximum number of dressed blades for a given fan set is the equivalent of three blades dressed to the maximum limits. All the remaining blades not to be dressed. This maximum number of dressed blades must be obeyed to prevent a risk of blade vibration.

Scallops and crops are permitted on the same blade, refer to Figure.

The blades repaired on installed engines must be glass bead peened at the next shop visit.

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC rotor blade assembly

Titanium alloy

Price and availability - none

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

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Portablegrinding equipmentLOCALPortable grinding equipment
Glass bead peening equipmentLOCALGlass bead peening equipment
Vibrating marking pencilLOCALVibrating marking pencil
IAE 3R19016 LE profile gage0AM53IAE 3R190161
IAE 3R19017 LE profile gage0AM53IAE 3R190171

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-075 WATERPROOF SILICON CARBIDEIE241CoMat 05-075
CoMat 05-076 WATERPROOF SILICON CARBIDEK3895CoMat 05-076
CoMat 05-077 WATERPROOF SILICON CARBIDEK6835CoMat 05-077
CoMat 05-078 WATERPROOF SILICON CARBIDEK3895CoMat 05-078
CoMat 05-079 WATERPROOF SILICON CARBIDEK3895CoMat 05-079
CoMat 05-080 WATERPROOF SILICON CARBIDE44197CoMat 05-080
CoMat 05-081 WATERPROOF SILICON CARBIDE44197CoMat 05-081
CoMat 05-082 WATERPROOF SILICON CARBIDE44197CoMat 05-082
CoMat 05-083 WATERPROOF SILICON CARBIDE44197CoMat 05-083
CoMat 05-084 WATERPROOF SILICON CARBIDE44197CoMat 05-084
CoMat 05-085 WATERPROOF SILICON CARBIDE44197CoMat 05-085

Spares

NONE

Safety Requirements

CAUTION

TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.
ALUMINUM OXIDE MUST NOT BE USED.
THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS HAS OCCURRED IF THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION.

Procedure

    1. SUBTASK 72-31-11-230-054 Examine the LPC Rotor Blade Assembly for Cracks

      1. CAUTION

        DO NOT PUT THE PART FULLY INTO THE SOLUTION IF THE LP COMPRESSOR BLADE ASSEMBLY IS POST SB72-0375 OR POST SB72-0384. ENSURE THAT THE PENETRANT FLUIDS DO NOT MAKE CONTACT WITH THE BLADE ROOT DOVETAIL FACES.

        Do a penetrant crack test to find all the damage.

      1. Refer to the SPM TASK 70-23-03-230-501.

      2. Use penetrant crack test facility or local crack test equipment, if repair is to be done on-wing.

    2. SUBTASK 72-31-11-350-052 Remove the Damage from the LPC Rotor Blade Assembly

      1. CAUTION

        TITANIUM COMPONENTS. SILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.
        ALUMINUM OXIDE TYPES MUST NOT BE USED.
        THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS HAS OCCURRED IF THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF AT ANY TIME THIS COLORATION OCCURS THE BLADE MUST BE REJECTED.

        Cutaway to remove cracks and/or damage.

      1. Use portable grinding equipment.

      2. Cutaway until all damage is removed.

      2. Make smooth removed area and polish out scores.

      2. Polish marks must be in a radial direction (i.e. from root to tip of the blade).

      3. Surface finish of the repair must be the same as the adjacent area.

      4. Refer to Figure to Figure.

    3. SUBTASK 72-31-11-350-053 Repair the Leading Edge

      1. Repair the leading edge radius.

      2. Remove the minimum material to give correct radius.

      3. Refer to Figure, Figure and Figure.

      2. Lightly polish, make sure there is a smooth shape between radius and airfoil.

      2. Polish marks must be in a radial direction (i.e. from root to tip of the blade).

      3. Surface finish of the repair must be the same as adjacent area.

      4. Refer to Figure to Figure.

    4. SUBTASK 72-31-11-220-060 Examine the LPC Rotor Blade Assembly

      1. Do a visual and dimensional inspection.

      2. CAUTION

        DO NOT PUT THE PART FULLY INTO THE SOLUTION IF THE LP COMPRESSOR BLADE ASSEMBLY IS POST SB72-0375 OR POST SB72-0384. ENSURE THAT THE PENETRANT FLUIDS DO NOT MAKE CONTACT WITH THE BLADE ROOT DOVETAIL FACES.

        Do a penetrant crack test for the repaired area.

      1. Refer to the SPM TASK 70-23-03-230-501.

      2. Use penetrant crack test facility or local crack test equipment, if repair is to be done on-wing.

      3. Refer to Figure and Figure.

    5. SUBTASK 72-31-11-380-054 Peen the LPC Rotor Blade Assembly

      1. Glass bead peen the airfoil.

      1. Refer to Repair, TASK 72-31-11 300-026 (REPAIR-026).

    6. SUBTASK 72-31-11-350-054 Identify the Repair on the LPC Rotor Blade Assembly

      1. Make a mark VRS1002 adjacant to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 72-09-00-400-001.

    7. Figure: Fan blade cropping

    Fan blade cropping

    Figure: Fan blade scalloping limits

    Fan blade scalloping limits

    Figure: Fan blade scalloping limits

    Fan blade scalloping limits

    Figure: Scallop proportions

    Scallop proportions

    Figure: Fan blade minimum acceptable conditions between tip cropping and scalloping

    Fan blade minimum acceptable conditions between tip cropping and scalloping

    Figure: Fan blade surface dressing for pressure face and non pressure face

    Fan blade surface dressing for pressure face and non pressure face

    Figure: The fan blade leading edge shape

    The fan blade leading edge shape

    Figure: Section AA-AA and section AB-AB

    Section AA-AA and section AB-AB

    Figure: Section AC-AC

    Section AC-AC

Requirements After Job Completion

Follow-On Conditions

NONE
Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
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:IE241
Enterprise Name:DELETED. Was ANGLO ABRASIVES.
Manufacturer Code:K3895
Enterprise Name:DELETED. REFER TO VENDOR CODE KC1D9.
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 05-075
Type:sp01
Supply Short Name:CoMat 05-075 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-075 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/28 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 800
JCR-181 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K1905
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-076
Type:sp01
Supply Short Name:CoMat 05-076 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-076 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/30 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 500
JCR-183 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
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 05-078
Type:sp01
Supply Short Name:CoMat 05-078 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-078 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/34 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 280 (ANSI B74.18)
JCR-187 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-079
Type:sp01
Supply Short Name:CoMat 05-079 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-079 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/36 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 220 (ANSI B74.18)
JCR-189 (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 05-081
Type:sp01
Supply Short Name:CoMat 05-081 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-081 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/38GRIT SIZE 150 A-A-1047
JCR-191GRIT SIZE 150 A-A-1047
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-082
Type:sp01
Supply Short Name:CoMat 05-082 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-082 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/39 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 120 (ANSI B74.18)
JCR-192 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-083
Type:sp01
Supply Short Name:CoMat 05-083 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-083 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/40 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 100 (ANSI B74.18)
JCR-193 (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
Manufacturer Code:1E1X8
Supply Number:CoMat 05-085
Type:sp01
Supply Short Name:CoMat 05-085 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-085 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/42 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 60 (ANSI B74.18)
JCR-195 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:LOCAL
Tool Number:Glass bead peening equipment
Tool Name:Glass bead peening equipment
Manufacturer Code:0AM53
Tool Number:IAE 3R19016
Tool Name:IAE 3R19016 LE profile gage
Manufacturer Code:0AM53
Tool Number:IAE 3R19017
Tool Name:IAE 3R19017 LE profile gage
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
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