TASK 72-31-11-300-013 LPC Fan Blade - Replace The Chocking Pads, Repair-013 (VRS1028)

DMC:V2500-A0-72-31-1101-01A-920A-C|Issue No:003.00|Issue Date:2018-02-01

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 72-31-11-300-013 LPC Fan Blade - Replace The Chocking Pads, Repair-013 (VRS1028)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

01-300

6A3494

A

01-300

6A3971

A

01-300

6A7649

B

01-300

6A7650

B

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC rotor blade

-

Titanium alloy

General

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

Price and availability - none

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
Abrasive blast equipmentLOCALAbrasive blast equipment
Vibrating marking pencilLOCALVibrating marking pencil

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-024 BARIUM CHROMATE BaCrO470657CoMat 01-024
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 01-031 ACETONE (CH3)2COLOCALCoMat 01-031
CoMat 01-060 ACETONE (CH3)2COLOCALCoMat 01-060
CoMat 01-201 DISTILLED, DEIONIZED, DEMINERALIZED, OR REVERSE OSMOSIS (RO) WATERLOCALCoMat 01-201
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 05-004 ABRASIVE MEDIUM, ALUMINUM OXIDE, 140/400 GRADEIE241CoMat 05-004
CoMat 05-016 GARNET PAPER, 80-GRITLOCALCoMat 05-016
CoMat 05-017 GARNET PAPER, 60 GRITK6835CoMat 05-017
CoMat 06-021 SURFACE INSPECTION FLUIDLOCALCoMat 06-021
CoMat 08-013 COLD CURING SILICONE COMPOUNDLOCALCoMat 08-013
CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT0AM53CoMat 08-014

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Front chocking pad assembly6A27871
Rear chocking pad assembly6A34951

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-11-350-060 Remove the Chocking Pads from the LPC Rotor Blade Assembly

      1. Remove and discard the bulk of the chocking pad.

        1. Use hand methods.

        1. Take extreme care not to damage the fan blade.

    2. SUBTASK 72-31-11-110-058 Remove Adhesive Residue from the Bottom of the Blade Root

      1. Remove adhesive residue.

      1. Refer to TASK 72-31-11-100-000 (CLEANING-000) for the applicable cleaning TASK. Use non metallic scraper.

    3. SUBTASK 72-31-11-230-057 Examine the Fan Blade Assembly for Cracks

      1. CAUTION

        FOLLOWING THE CRACK TEST PROCEDURE ENSURE THAT FLUORESCENT PENETRANT IS THOROUGHLY REMOVED FROM THE FAN BLADE ROOT COATING.

        Fluorescent penetrant examine the blade root.

      1. Cracks are not permitted.

      2. Refer to TASK 72-31-11-200-000 (INSPECTION/CHECK-000) for the applicable Inspection/Check TASK.

      3. Use fluorescent penetrant inspection equipment.

    4. SUBTASK 72-31-11-110-059 Prepare the LPC Rotor Blade for Bonding, Assembly A

    1. Refer to: Figure

      2. Swab degrease the bonding areas.

      3. Mask all the areas that are not to be blasted.

      4. Dry abrasive blast surface areas enclosed by dimensions AE (bottom of the blade root).

        1. Overspray is not permitted.

        1. Use an air pressure of 20 psi (140 Kpa) for the minimum time necessary to clean the parts.

        3. Refer to SPM TASK 70-12-02-120-501.

        4. Use abrasive blast equipment.

    5. Do step A. again.

      6. Do a water break test to make sure that the bonding surfaces are clean.

      2. Refer to SPM TASK 70-36-02-360-501.

    7. Remove the masking tape.

    5. SUBTASK 72-31-11-110-092 Prepare the LPC Rotor Blade for Bonding, Assembly B

    1. Refer to Figure.

      2. Swab degrease the bonding areas.

      3. Hand clean the bonding surface of the rotor blade (Area AE).

    4. CAUTION

      DO NOT APPLY ABRASIVE BLAST ON POST SB 72-0375 AND POST SB 72-0384 (METCO 58 COATED ROOT) FAN BLADES AS THIS COULD DAMAGE THE INTEGRITY OF THE COATING.

      Do step A again.

      5. Do a water break test to make sure that the bonding surfaces are clean.

      1. Refer to SPM TASK 70-36-02-360-501.

      6. Remove the break test fluid by swabbing.

      1. Refer to SPM TASK 70-36-02-360-501.

    6. SUBTASK 72-31-11-360-051 Prepare the Chocking Pad for Bonding

      1. Cold liquid degrease the bonding surfaces.

      2. Hand clean the bonding surface of the chocking pads.

      2. Refer to SPM TASK 70-36-02-360-501.

    3. Do step A. again.

      4. Do a water break test fluid by swabbing with clean acetone.

    7. SUBTASK 72-31-11-360-052 Apply and Cure the Cold Curing Silicone Rubber Compounds

      CAUTION

      YOU MUST NOT EAT ANYTHING OR SMOKE AT LOCATIONS WHERE THESE MATERIALS ARE USED.

    1. Refer to: Figure and Figure

      2. Apply a thin layer of primer to each of the prepared mating surfaces of the blade and the chocking pads. Dry in air for 30 minutes.

      2. Refer to SPM TASK 70-36-02-360-501.

      3. Apply the cold curing silicone compound, to each of the mating surfaces of the fan blade and the chocking pads.

      2. Use a corrugated scraper.

      3. Refer to SPM TASK 70-36-02-360-501.

      4. Assemble the front and rear chocking pads to the fan blade immediately.

      1. Use CoMat 02-001 ADHESIVE TAPE (MASKING) to hold the chocking pad in position.

    5. NOTE

      The parts can be touched after 12 hours.

      Cure the compound at 68 deg F (20 deg C) for 48 hours. Do not apply a load during this time.

    8. SUBTASK 72-31-11-220-073 Examine the Repaired Area of the Fan Blade Assembly

    1. Refer to Figure and Figure.

      2. Visually and dimensionally examine the fan blade assembly.

      1. Reject the choking pads, if the dimensions are not within the limits specified.

    9. SUBTASK 72-31-11-350-061 Make a Mark on the Fan Blade

      1. Write VRS1028 adjacent to the part number.

      1. Use vibro-engraver.

    10. Figure: Replace the Front and Rear Chocking Pads

    Replace the Front and Rear Chocking Pads

    Figure: Replace the Front and Rear Chocking Pads

    Replace the Front and Rear Chocking Pads

    Figure: Replace the Front and Rear Chocking Pads

    Replace the Front and Rear Chocking Pads

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Update CoMat to Isopropyl alcohol in Subtask 72-31-11-110-059 per (REA17VC351)

Link not Found
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:70657
Enterprise Name:AEROPIA
BU Name:AEROPIA
Street:8586 N.WEST 72ND STR
City:MIAMI
State:FL
Zip Code:33166
Country:USA
Phone Number:1-305-717-6577
Fax Number:1-305-717-6578
Internet:www.aeropia.com
Manufacturer Code:IE241
Enterprise Name:DELETED. Was ANGLO ABRASIVES.
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
Link not Found
Link not Found
Manufacturer Code:LOCAL
Supply Number:CoMat 01-024
Type:sp01
Supply Short Name:CoMat 01-024 BARIUM CHROMATE BaCrO4
Supply Name:CoMat 01-024 BARIUM CHROMATE BaCrO4
Specification Groups:
Doc NumberType
OMAT: 130 (RR REF)GPR MIL-B-550 GRC
JCR-038 (JAEC REF)GPR MIL-B-550 GRC
TUC 3203 (FIAT REF)GPR MIL-B-550 GRC
Suppliers:
ManufacturerRemarks
LOCAL
70657
K6835
U1185
24853
Manufacturer Code:LOCAL
Supply Number:CoMat 01-031
Type:sp01
Supply Short Name:CoMat 01-031 ACETONE (CH3)2CO
Supply Name:CoMat 01-031 ACETONE (CH3)2CO
Specification Groups:
Doc NumberType
OMAT: 150 (RR REF)COMMERCIAL GRADE O-A-51
PMC 9008 (PW REF)COMMERCIAL GRADE O-A-51
JCR-041 (JAEC REF)COMMERCIAL GRADE O-A-51
MTH 169 (98%) (MTU REF)COMMERCIAL GRADE O-A-51
Suppliers:
ManufacturerRemarks
LOCAL
K6835
81348
K3504
U1185
24853
70657
Manufacturer Code:LOCAL
Supply Number:CoMat 01-060
Type:sp01
Supply Short Name:CoMat 01-060 ACETONE (CH3)2CO
Supply Name:CoMat 01-060 ACETONE (CH3)2CO
Specification Groups:
Doc NumberType
OMAT:1/176 (RR REF)ANALAR GRADE
JCR-017 (JAEC REF)ANALAR GRADE
MTH 169 (96%) (MTU REF)ANALAR GRADE
392-101010 (FIAT REF)ANALAR GRADE
Suppliers:
ManufacturerRemarks
LOCAL
06637
24853
k3504
K6835
U1185
Manufacturer Code:LOCAL
Supply Number:CoMat 01-124
Type:sp01
Supply Short Name:CoMat 01-124 ISOPROPYL ALCOHOL
Supply Name:CoMat 01-124 ISOPROPYL ALCOHOL
Specification Groups:
Doc NumberType
OMAT:1/40GPR TECHNICAL GRADE
PMC 9094GPR TECHNICAL GRADE
JCR-011GPR TECHNICAL GRADE
Suppliers:
ManufacturerRemarks
LOCAL
U1185
24853
K6835
Manufacturer Code:LOCAL
Supply Number:CoMat 01-201
Type:sp01
Supply Short Name:CoMat 01-201 DISTILLED, DEIONIZED, DEMINERALIZED, OR REVERSE OSMOSIS (RO) WATER
Supply Name:CoMat 01-201 DISTILLED, DEIONIZED, DEMINERALIZED, OR REVERSE OSMOSIS (RO) WATER
Specification Groups:
Doc NumberType
DISTILLED, DEIONIZED, DEMINERALIZED, OR REVERSE OSMOSIS (RO) WATERTHAT HAS 50,000 ohm‐cm MINIMUM ELECTRICAL RESISTIVITY OR 20 microsiemens/cm MAXIMUM ELECTRICAL CONDUCTIVITY, AND pH 5.0- 8.0.
Suppliers:
ManufacturerRemarks
LOCAL
06637
Manufacturer Code:LOCAL
Supply Number:CoMat 02-001
Type:sp01
Supply Short Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Supply Name:CoMat 02-001 ADHESIVE TAPE (MASKING)
Specification Groups:
Doc NumberType
OMAT: 230 (RR REF)ZINC OXIDE AT142
JCR-197 (JAEC REF)ZINC OXIDE AT142
Suppliers:
ManufacturerRemarks
LOCAL
K6835
U0415
Manufacturer Code:X222X
Supply Number:CoMat 05-004
Type:sp01
Supply Short Name:CoMat 05-004 ABRASIVE MEDIUM, ALUMINUM OXIDE, 140/400 GRADE
Supply Name:CoMat 05-004 ABRASIVE MEDIUM, ALUMINUM OXIDE, 140/400 GRADE
Specification Groups:
Doc NumberType
Use one of the CoMat 05-004 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:0KHE3
Supply Number:CoMat 05-016
Type:sp01
Supply Short Name:CoMat 05-016 GARNET PAPER, 80-GRIT
Supply Name:CoMat 05-016 GARNET PAPER, 80-GRIT
Specification Groups:
Doc NumberType
GARNET PAPER, CAMI GRIT SIZE 80 GRADE 0 (ANSI B74.18)
Suppliers:
ManufacturerRemarks
0KHE3
1E1X8
LOCAL
C4347
K0993
K2F42
K6835
V571V
Manufacturer Code:0KHE3
Supply Number:CoMat 05-017
Type:sp01
Supply Short Name:CoMat 05-017 GARNET PAPER, 60 GRIT
Supply Name:CoMat 05-017 GARNET PAPER, 60 GRIT
Specification Groups:
Doc NumberType
GARNET PAPER, CAMI GRIT SIZE 60 GRADE 1/2 (ANSI B74.18)
Suppliers:
ManufacturerRemarks
0KHE3
1E1X8
C4347
LOCAL
K0993
K6835
Manufacturer Code:00BB6
Supply Number:CoMat 06-021
Type:sp01
Supply Short Name:CoMat 06-021 SURFACE INSPECTION FLUID
Supply Name:CoMat 06-021 SURFACE INSPECTION FLUID
Specification Groups:
Doc NumberType
NML 21
Suppliers:
ManufacturerRemarks
00BB6
K3504
K6835
Manufacturer Code:X222X
Supply Number:CoMat 08-013
Type:sp01
Supply Short Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Supply Name:CoMat 08-013 COLD CURING SILICONE COMPOUND
Specification Groups:
Doc NumberType
If CoMat 08-013 is specified without an asterisk or a letter suffix, use one of the letter suffix alternative materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:X222X
Supply Number:CoMat 08-014
Type:sp01
Supply Short Name:CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT
Supply Name:CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT
Specification Groups:
Doc NumberType
Use the applicable letter suffix material. Refer to SPM TASK 70-36-02-360-501.
Suppliers:
ManufacturerRemarks
X222X
Link not Found
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Link not Found