TASK 72-32-83-300-007 LPC Front Case - Replace The Press Nut, Repair-007 (VRS1382)

DMC:V2500-A0-72-32-8330-00A-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 72-32-83-300-007 LPC Front Case - Replace The Press Nut, Repair-007 (VRS1382)

Effectivity

FIG/ITEM

PART NO.

01-350

5A0062

Assembly A

01-350

5A0961

Assembly A

01-350

5A7399

Assembly A

01-350

5A1814

Assembly A

02-350

5A0458

Assembly B

02-350

5A1864

Assembly B

Material of component

PART IDENT

SYMBOL

MATERIAL

LPC Front Case

Aluminum alloy

General

Price and availability - none

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

NOTE

The installation tool above (RPN250DS, RPN10DS) can be obtained from:
ROSAN INC.
2901W. Coast Highway
Newport Beach, CA 92663 USA

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
Drilling machineLOCALDrilling machine
Vibrating marking pencilLOCALVibrating marking pencil
Standard workshop equipmentLOCALStandard workshop equipment
SpatulaLOCALSpatula
Arbor PressLOCALArbor press
Drive toolLOCALRPN250DS1
Drive toolLOCALRPN10DS1

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 08-109 RESIN, EPOXY ADHESIVELOCALCoMat 08-109
CoMat 08-110 HARDENER, EPOXY ADHESIVELOCALCoMat 08-110
CoMat 05-016 GARNET PAPER, 80-GRITLOCALCoMat 05-016
CoMat 05-017 GARNET PAPER, 60 GRITLOCALCoMat 05-017
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)LOCALCoMat 06-063
CoMat 06-064 FLUORESCENT PENETRANT (WATER WASHABLE MEDIUM SENSITIVITY)LOCALCoMat 06-064

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Nut Assembly ARPNF250-28SMA/R
Nut Assembly ARPNF250-28SMA/R
Nut Assembly BRPNF10-32SMA/R

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-83-360-119 Remove the Damaged Press Nut from the LPC Front Fan Case Assembly

    1. Refer to Figure and Figure.

    2. Examine and identify the damaged nut.

      3. Remove the damaged nut from the front case, if necessary.

      1. Use drilling machine.

      2. Drill through the press nut.

      3. Use drill 0.334 in. (8.5 mm) for assembly A.

      4. Use drill 0.228 in. (5.8 mm) for assembly B.

      5. Use standard workshop equipment to pull out the nut.

      4. Remove the raised metal around the nut hole.

    2. SUBTASK 72-32-83-230-083 Examine the Nut Hole of the Front Case Assembly for Cracks

      1. Do a penetrant crack test on the nut location hole.

      1. Make sure there are no cracks on the nut location hole.

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

      4. Use penetrant crack test equipment.

      5. Refer to TASK 72-32-83-200-000(INSPECTION-000).

    3. SUBTASK 72-32-83-360-120 Prepare the Bonding Surfaces of the Nut and the LPC Case Assembly

    1. Refer to Figure and Figure.

      2. Remove the grease from bonding surfaces of the nut and front case.

      1. Use CoMat 01-124 ISOPROPYL ALCOHOL with lint free cheese cloth.

    4. Do Step again.

    4. SUBTASK 72-32-83-360-121 Apply and Cure the Epoxy Paste Adhesive

    1. Refer to Figure and Figure

    2. CAUTION

      AFTER PREPARATION THE MATING SURFACES MUST BE FULLY CLEANED AND MUST NOT BE TOUCHED BY HAND, TO PREVENT CONTAMINATION.

      Make up the two part epoxy paste adhesive.

      3. The adhesive is made up from two parts: CoMat 08-109 RESIN, EPOXY ADHESIVE 100 parts by weight. CoMat 08-110 HARDENER, EPOXY ADHESIVE 40 parts by weight. Fully mix the two parts.

      1. The pot life of the adhesive is one hour at 68 deg F (20 deg C).

      4. Apply the epoxy paste adhesive to the mating surfaces of the nut and front case.

      1. Use a spatula.

      5. Install the nut to the front case.

      1. Apply sufficient pressure to ensure good contact by hand or arbor press.

    6. Remove excess adhesive.

    7. Cure the adhesive at 68 deg F (20 deg C) for 16 hours or at 248 deg F (120 deg C) for 10 minutes.

    5. SUBTASK 72-32-83-220-189 Examine the Repaired Areas of the LPC Front Case

    1. Refer to Figure and Figure.

    2. Visually examine the position of the repaired nut.

    3. Visually examine gapping and filling.

    6. SUBTASK 72-32-83-350-095 Mark Repair Number on the LPC Front Case Assembly

      1. Write VRS1382, adjacent to the part number on front case assembly.

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

      2. Use vibrating marking pencil.

      2. Apply chromate conversion coating to the marked repair number.

      1. Refer to the SPM TASK 70-38-02-300-503.

    7. Figure: Repair details and dimensions - Assembly A

    Sheet 1

    Legend
    Repair details and dimensions - Assembly A

    Sheet 1

    Close

    Figure: Repair details and dimensions - Assembly B

    Sheet 2

    Legend
    Repair details and dimensions - Assembly B

    Sheet 2

    Close

    Figure: Repair details and dimensions - Assembly B

    Sheet 3

    Legend
    Repair details and dimensions - Assembly B

    Sheet 3

    Close

    Figure: Repair details and dimensions - Assembly B

    Sheet 4

    Legend
    Repair details and dimensions - Assembly B

    Sheet 4

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Link not Found
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: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:X222X
Supply Number:CoMat 06-063
Type:sp01
Supply Short Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Supply Name:CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)
Specification Groups:
Doc NumberType
It is not permitted to mix the selected CoMat 06‐063 letter suffix material with other CoMat 06‐063 letter suffix materials. Where CoMat 06‐063 is specified with no suffix, use one of the CoMat 06‐063 letter suffix materials.
Suppliers:
ManufacturerRemarks
X222X
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
Manufacturer Code:B4647
Supply Number:CoMat 08-109
Type:sp01
Supply Short Name:CoMat 08-109 RESIN, EPOXY ADHESIVE
Supply Name:CoMat 08-109 RESIN, EPOXY ADHESIVE
Specification Groups:
Doc NumberType
ARALDITE AW 134
Suppliers:
ManufacturerRemarks
B4647
K1007
Manufacturer Code:B4647
Supply Number:CoMat 08-110
Type:sp01
Supply Short Name:CoMat 08-110 HARDENER, EPOXY ADHESIVE
Supply Name:CoMat 08-110 HARDENER, EPOXY ADHESIVE
Specification Groups:
Doc NumberType
HY 994
Suppliers:
ManufacturerRemarks
B4647
K1007
Manufacturer Code:LOCAL
Tool Number:Arbor press
Tool Name:Arbor Press
Manufacturer Code:LOCAL
Tool Number:Drilling machine
Tool Name:Drilling machine
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:LOCAL
Tool Number:RPN10DS
Tool Name:Drive tool
Manufacturer Code:LOCAL
Tool Number:RPN250DS
Tool Name:Drive tool
Manufacturer Code:LOCAL
Tool Number:Spatula
Tool Name:Spatula
Link not Found
Link not Found