TASK 72-41-23-300-002 HPC Rear Outer Case - Replace The Lining, Repair-002 (VRS6179)

DMC:V2500-A0-72-41-2301-00A-920A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-41-23-300-002 HPC Rear Outer Case - Replace The Lining, Repair-002 (VRS6179)

Effectivity

FIG/ITEM

PART NO.

ASSEMBLY

02-400

6A2949

A

02-400

6A3557

A

02-400

6A4154

A

02-400

6A5495

A

02-400

6A5682

C

02-400

6A8162

C

Material of component

PART IDENT

MATERIAL

HP compressor rear

outer case assembly

Corrosion resistant steel

General

This Repair must only be done when the instruction to do so is given in 72-41-23 Inspection/Check.

This TASK gives the procedure to repair the HP compressor rear outer case assembly by the replacement of the lining.

TASKs identified by SPM TASK are in the Standard Practices and Processes Manual (SPM).

Price and availability

Refer to International Aero Engines

Related repairs

HP Compressor Rear Outer Case Assembly - Replace Surface Protection, refer to VRS6178, TASK 72-41-23-300-003 (REPAIR-003).

NOTE

Equipment and materials necessary to do this repair are in the SPM TASKs given below:
SPM TASK 70-09-00-400-501
SPM TASK 70-11-01-300-503
SPM TASK 70-12-02-120-501
SPM TASK 70-23-05-230-501
SPM TASK 70-33-59-300-503
SPM TASK 70-34-01-340-501
SPM TASK 70-34-03-340-501

NOTE

  1. It is possible that some materials in the Consumable Materials chart cannot be used for some or all of the necessary applications. Before you use the materials, make sure the types, quantities and applications of the materials necessary are legally permitted in your location. All persons must obey all applicable federal, state, local and provincial laws and regulations when it is necessary to work with these materials.

  2. To identify the consumable materials, refer to the Overhaul Processes and Consumables Index (PCI).

  3. Other necessary consumable materials are referred to in the SPM TASKs.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Abrasive blast equipmentLOCALAbrasive blast equipment
Chemical cleaning equipmentLOCALChemical cleaning equipment
GlovesLOCALGloves

Cotton or polythene

Dial indicatorLOCALDial indicator
Grinding machineLOCALGrinding machine
LatheLOCALLathe
Metal spray equipmentLOCALMetal spray equipment
Penetrant Crack Test EquipmentLOCALPenetrant crack test equipment
Standard workshop equipmentLOCALStandard workshop equipment
BrushLOCALBrush

Vacuum assisted

Vibrating marking pencilLOCALVibrating marking pencil
Workshop inspection equipmentLOCALWorkshop inspection equipment
IAE 3R18658 Turn/Grind fixture0AM53IAE 3R186581
IAE 3R18659 Mask0AM53IAE 3R186591
IAE 3R18660 Mask0AM53IAE 3R186601

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 02-001 ADHESIVE TAPE (MASKING)LOCALCoMat 02-001
CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOILK0993CoMat 02-006
CoMat 03-096 PLASMA SPRAY POWDERLOCALCoMat 03-096
CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINELOCALCoMat 03-239
CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINELOCALCoMat 03-240
CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADELOCALCoMat 05-001
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-23-110-062 Remove the Surface Protection (as necessary) from the Area to be Repaired

      1. Remove the surface protection.

      1. Refer to TASK 72-41-23-100-003, SUBTASK 72-41-23-110-058.

        Use chemical cleaning equipment.

    2. SUBTASK 72-41-23-330-001 Remove the Lining

      CAUTION

      SURFACES FOR REPAIR MUST BE FULLY CLEANED AND NOT TOUCHED BY HAND. CLEAN COTTON OR POLYTHENE GLOVES MUST BE WORN.

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. NOTE

        This SUBTASK is an alternative to Step.

        Chemically degrade the lining at area identified AD.

      1. Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-007.

        Use chemical cleaning equipment.

      3. Abrasive blast the area identified AD.

      1. Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-008.

        Use abrasive blast equipment.

    3. SUBTASK 72-41-23-325-051 Remove the Lining

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. NOTE

        This SUBTASK is an alternative to Step.

        Install the turn/grind fixture on to the machine and set to run true.

      1. Use IAE 3R18658 Turn/Grind fixture 1 off with lathe.

        Use a dial test indicator.

      3. Install the HP compressor rear outer case on the fixture.

      1. Make sure that datum A is set to turn correctly.

      4. Turn to remove the lining from the area identified AD.

      1. You must not remove the metal from the rear outer case.

        Use a lathe with standard workshop equipment.

    4. SUBTASK 72-41-23-220-115 Examine the Rear Outer Case Assembly

    1. Refer to Figure, Figure and Figure.

      2. Visually examine and measure the dimensions of the rear outer case at repair area.

      1. Make sure all the lining material and corrosion are removed.

        Make sure the dimensions are in the limits.

      3. If the dimensions are more than the limits.

      1. Reject.

    5. SUBTASK 72-41-23-230-070 Do a Crack Test

      1. Do a penetrant crack test on the repaired area(s).

      1. Refer to the SPM TASK 70-23-05-230-501.

        Use penetrant crack test equipment.

        Cracks are not permitted.

    6. SUBTASK 72-41-23-110-064 Chemically clean

      1. Chemically clean the rear outer case.

      1. Refer to the SPM TASK 70-11-01-300-503.

        Use chemical cleaning equipment.

    7. SUBTASK 72-41-23-120-051 Abrasive Blast the Rear Outer Case Assembly

      CAUTION

      SURFACES FOR REPAIR MUST BE FULLY CLEANED AND NOT TOUCHED BY HAND. CLEAN COTTON OR POLYTHENE GLOVES MUST BE WORN.

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. Seal the areas not to be repaired.

      3. Abrasive blast the rear outer case on area AD.

      1. Refer to the SPM TASK 70-12-02-120-501.

    4. Remove masking tape and/or masks.

      5. Clean the blasted area.

      1. Use a dry air blast or a vacuum assisted brush.

        Make sure that all the abrasive grit is removed.

    8. SUBTASK 72-41-23-220-205-A00 Examine the Rear Outer Case Assembly, Assembly A

    1. Refer to Figure, Figure and Figure.

      2. Measure the diameter AC to calculate the repair area.

      1. If the diameter is less than or equal to 23.2580 in. (590.762 mm), continue the repair from Step.

        If the diameter is more than 23.2580 in. (590.762 mm) but less than 23.2860 in. (591.464 mm), continue the repair.

    9. SUBTASK 72-41-23-220-205-B00 Examine the Rear Outer Case Assembly, Assembly C

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. Measure the diameter AC to calculate the repair area.

      1. If the diameter is less than or equal to 23.2580 in. (590.762 mm), continue the repair from Step.

        If the diameter is more than 23.2580 in. (590.762 mm) but less than 23.2860 in. (591.464 mm), continue the repair.

      3. Measure the diameter AF to calculate the repair area.

      1. If the diameter is less than or equal to 23.1808 in. (588.792 mm), continue the repair from Step.

        If the diameter is more than 23.1808 in. (588.792 mm) but less than 23.2078 in. (589.478 mm), continue the repair.

    10. SUBTASK 72-41-23-340-055 Apply the Plasma Spray (Bond Coat) to the HP Compressor Rear Outer Case Assembly

    1. Refer to Figure, Figure and Figure.

      2. Seal the areas not to be sprayed.

      3. Apply the plasma spray to area AD.

      1. Refer to the SPM TASK 70-34-03-340-501.

        Apply a bond coat of sufficient thickness to get the correct dimensions after the top coat is applied.

    4. NOTE

      Top coat thickness must be between 0.0032 and 0.0098 in. (0.080 and 0.250 mm) after final machining and remaining thickness must be build by bond coat.

      Remove masking tape and/or masks.

    11. SUBTASK 72-41-23-220-207 Examine the Repair Area

    1. Refer to Figure and Figure.

      2. Examine and measure the dimensions at repair area.

      1. Examine the coated area for chips, cracks, lifted material coating that is not attached to the base metal and surfaces that show heat cracks.

        Make sure the dimensions are in the limits.

        Use workshop inspection equipment.

    12. SUBTASK 72-41-23-340-051 Apply the Lining to the HP Compressor Rear Outer Case Assembly

    1. Refer to Figure, Figure and Figure.

      2. Seal the areas not to be sprayed.

      3. Apply the lining to area AD.

      1. Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-026.

        Apply a layer of sufficient thickness to get the correct dimensions after the assembly is machined.

    4. Remove the masking tape and/or masks.

    13. SUBTASK 72-41-23-220-116 Examine the Lining

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. Visually examine and measure the dimensions of the new lining.

      1. Refer to the SPM TASK 70-34-01-340-501.

        Use workshop inspection equipment.

        Make sure the dimensions are in the limits.

    14. SUBTASK 72-41-23-324-051 Machine the Lining

    1. Refer to Figure, Figure, Figure, Figure and Figure.

      2. Install the turn/grind fixture on a grinding machine and set to turn correctly.

      1. Use IAE 3R18658 Turn/Grind fixture 1 off with a grinding machine and a dial test indicator.

      3. Install the HP compressor rear outer case on to the fixture.

      1. Make sure that datum A is set to turn correctly.

    4. Fully grind the lining at AD to the dimensions shown.

      5. Remove burrs.

      1. Use standard workshop equipment.

    15. SUBTASK 72-41-23-220-117 Examine the Repair Area

    1. Refer to Figure, Figure and Figure.

      2. Visually examine and measure the dimensions at AD.

      1. Use workshop inspection equipment.

      3. If the dimensions are more than the limits.

      1. Reject.

    16. SUBTASK 72-41-23-110-065 Chemically clean

      1. Chemically clean the rear outer case.

      1. Refer to the SPM TASK 70-11-01-300-503.

        Use chemical cleaning equipment.

    17. SUBTASK 72-41-23-350-062 Identify the Repair

    1. Refer to Figure.

      2. Make a mark VRS6179 adjacent to the part number.

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

        Use vibro-engraving equipment.

    18. SUBTASK 72-41-23-380-058 Re-apply the Surface Protection

      1. Apply the surface protection again.

      1. Repair VRS6178, TASK 72-41-23-300-003 (REPAIR-003).

    19. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions

    Repair Details and Dimensions

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

    Figure: Repair Details and Dimensions - Assembly C

    Repair Details and Dimensions - Assembly C

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:K0993
Enterprise Name:3M (UK) PLC
BU Name:3M (UK) PLC
Street:3M CENTRE, CAIN ROAD
City:BRACKNELL
Zip Code:RG12 8HT
Country:UNITED KINGDOM
Phone Number:44-161-236-8500
Fax Number:44-161-237-6136
Internet:www.mmm.co.uk
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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:K6835
Supply Number:CoMat 02-006
Type:sp01
Supply Short Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Supply Name:CoMat 02-006 ADHESIVE TAPE ALUMINIUM FOIL
Specification Groups:
Doc NumberType
OMAT: 298 (RR REF)SCOTCH 425
Suppliers:
ManufacturerRemarks
K6835
52152
76381
LOCAL
Manufacturer Code:LOCAL
Supply Number:CoMat 03-096
Type:sp01
Supply Short Name:CoMat 03-096 PLASMA SPRAY POWDER
Supply Name:CoMat 03-096 PLASMA SPRAY POWDER
Specification Groups:
Doc NumberType
AMPERIT 298.442 OR AMPERIT 299.442
Suppliers:
ManufacturerRemarks
LOCAL
IAE15
IE252
Manufacturer Code:00BB6
Supply Number:CoMat 03-239
Type:sp01
Supply Short Name:CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Supply Name:CoMat 03-239 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Specification Groups:
Doc NumberType
MSRR 9507/17 (RR REF)METCO 81VF-NS
OMAT:3/190 (RR REF)
Suppliers:
ManufacturerRemarks
00BB6
01FK3
C1840
IE103
K0455
K6835
Manufacturer Code:X111X
Supply Number:CoMat 03-240
Type:sp01
Supply Short Name:CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Supply Name:CoMat 03-240 METAL SPRAYING POWDER, CHROMIUM CARBIDE/NICHROME 75/25, FINE
Specification Groups:
Doc NumberType
DELETED. USE COMAT 03-239
Suppliers:
ManufacturerRemarks
X111X
Manufacturer Code:LOCAL
Supply Number:CoMat 05-001
Type:sp01
Supply Short Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Supply Name:CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE
Specification Groups:
Doc NumberType
Use one of the CoMat 05-001 letter suffix alternatives.
Suppliers:
ManufacturerRemarks
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:Brush
Tool Name:Brush
Manufacturer Code:LOCAL
Tool Number:Chemical cleaning equipment
Tool Name:Chemical cleaning equipment
Manufacturer Code:LOCAL
Tool Number:Dial indicator
Tool Name:Dial indicator
Manufacturer Code:LOCAL
Tool Number:Gloves
Tool Name:Gloves
Link not Found
Manufacturer Code:0AM53
Tool Number:IAE 3R18658
Tool Name:IAE 3R18658 Turn/Grind fixture
Manufacturer Code:0AM53
Tool Number:IAE 3R18659
Tool Name:IAE 3R18659 Mask
Manufacturer Code:0AM53
Tool Number:IAE 3R18660
Tool Name:IAE 3R18660 Mask
Manufacturer Code:LOCAL
Tool Number:Lathe
Tool Name:Lathe
Manufacturer Code:LOCAL
Tool Number:Metal spray equipment
Tool Name:Metal spray equipment
Manufacturer Code:LOCAL
Tool Number:Penetrant crack test equipment
Tool Name:Penetrant Crack Test Equipment
Link not Found
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment