TASK 72-00-32-300-002 LPC/Intermediate Case Module - Blend Repair A Cracked Rear Wall Window Of The Fan Frame Assembly, Repair-002 (VRS1122)

DMC:V2500-A0-72-00-3201-00A-649A-B|Issue No:002.00|Issue Date:2019-08-01

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

V2500-A1

Common Information

TASK 72-00-32-300-002 LPC/Intermediate Case Module - Blend Repair A Cracked Rear Wall Window Of The Fan Frame Assembly, Repair-002 (VRS1122)

General

This repair must only be done when the instruction to do so is given in 72-00-32 Inspection/Check.

Material of component

PART IDENT

SYMBOL

MATERIAL

Fan frame assembly

Titanium alloy

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.

NOTE

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Hand held pneumatic grinderLOCALHand held pneumatic grinder
Fluorescent Penetrant Inspection EquipmentLOCALFluorescent Penetrant Inspection Equipment
IAE 3J12840 Protective cover0AM53IAE 3J128401

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021
CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)37676CoMat 06-018
CoMat 06-032 DRY DEVELOPER37676CoMat 06-032
CoMat 01-031 ACETONE (CH3)2COLOCALCoMat 01-031
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-32-350-051 Remove the Cracks from the Rear Wall Window of the Fan Frame Assembly

    1. Refer to Figure and Figure.

      2. CAUTION

        WHEELS, STONES AND ABRASIVE PAPERS USED TO DRESS, MAKE SMOOTH OR POLISH A TITANIUM COMPONENT MUST BE OF THE SILICON CARBIDE TYPE. ALUMINUM OXIDE TYPES MUST NOT BE USED.

        CAUTION

        IF MECHANICAL CUTTERS ARE USED, ONLY SMALL CUTS MUST BE MADE TO PREVENT TOO MUCH HEAT.

        Apply the masking tape to the opening port hole of the fan frame and install protective cover.

      3. Scallop to remove cracks. The maximum depth of the scalloping is 0.275 in. (7.0 mm).

      1. Use an abrasive stone and a hand held pneumatic grinder.

        Scalloping must be continued until the crack is removed.

        Remove material to a minimum depth of 0.079 in. (2.0 mm) below the surface of the crack.

    4. Blend the weld bead.

      6. After scalloping is completed, remove all the metal chips from the fan frame by vacuuming.

      1. Use vacuum cleaner.

    7. Remove the masking tape and masking fixture.

    2. SUBTASK 72-00-32-350-052 Remove Material Corner of the Rear Wall Window of the Fan Frame to Prevent Crack

    1. Refer to Figure and Figure.

      2. CAUTION

        WHEELS, STONES AND ABRASIVE PAPERS USED TO DRESS, MAKE SMOOTH OR POLISH A TITANIUM COMPONENT MUST BE OF THE SILICON CARBIDE TYPE. ALUMINUM OXIDE TYPES MUST NOT BE USED.

        CAUTION

        IF MECHANICAL CUTTERS ARE USED, ONLY SMALL CUTS MUST BE MADE TO PREVENT TOO MUCH HEAT.

        Apply the masking tape to all the opening port hole of the fan frame and install protective cover.

      3. Scribe blending line 0.079 in. (2.00 mm) from the current contour.

      1. Use a pair of dividers.

      4. Remove material corner of the rear wall window from the current contour scribe line.

      1. Use an abrasive stone and a hand held pneumatic grinder.

    5. Make smooth the repaired area.

      7. After preventive repair is completed, remove all the metal chips from the fan frame by vacuuming.

      1. Use a vacuum cleaner.

    8. Remove the masking tape and the protective cover.

    3. SUBTASK 72-00-32-220-124 Examine the Rear Wall Window of the Fan Frame Assembly

    1. Refer to Figure, Figure and Figure.

    2. Do a visual and dimensional inspection.

    4. SUBTASK 72-00-32-230-053 Examine the Fan Frame Assembly for Cracks

    1. Refer to Figure and Figure.

      2. Do a penetrant crack test of the repaired area.

    5. SUBTASK 72-00-32-350-053 Identify the Repair

    1. Refer to Figure.

      2. Write the repair number VRS1122 and engine cycles adjacent to the fan frame part number (top portion).

      1. Use vibrating marking pencil.

    6. Figure: Fan frame rear wall window - scalloping limits

    Fan frame rear wall window - scalloping limits

    Figure: Fan frame rear wall window - scalloping limits

    Fan frame rear wall window - scalloping limits

    Figure: Fan frame rear wall window - blend limits to prevent crack

    Fan frame rear wall window - blend limits to prevent crack

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial update to XML. Applic is A1 only

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:37676
Enterprise Name:ITW MAGNAFLUX
BU Name:MAGNAFLUX CORPORATION
Street:155 HARLEM AVE
City:GLENVIEW
State:IL
Zip Code:60025
Country:USA
Phone Number:1-847-657-5300
Fax Number:1-847-867-5388
Internet:www.magnaflux.com
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: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 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: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 06-018
Type:sp01
Supply Short Name:CoMat 06-018FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Supply Name:CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐018 letter suffix material with other CoMat 06‐018 letter suffix materials. Where CoMat 06‐018 is specified with no suffix, use one of the CoMat 06‐018 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:37676
Supply Number:CoMat 06-032
Type:sp01
Supply Short Name:CoMat 06-032 DRY DEVELOPER
Supply Name:CoMat 06-032 DRY DEVELOPER
Specification Groups:
Doc NumberType
ZYGLO ZP-4B
Suppliers:
ManufacturerRemarks
37676
Link not Found
Manufacturer Code:LOCAL
Tool Number:Hand held pneumatic grinder
Tool Name:Hand held pneumatic grinder
Manufacturer Code:0AM53
Tool Number:IAE 3J12840
Tool Name:IAE 3J12840 Protective cover