TASK 75-22-41-300-007ACAC Inlet Duct - Replace The Bush, Repair-007 (VRS1651)

DMC:V2500-A0-75-22-4101-00A-920A-C|Issue No:002.00|Issue Date:2015-05-01

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 75-22-41-300-007ACAC Inlet Duct - Replace The Bush, Repair-007 (VRS1651)

Effectivity

FIG/ITEM

PART NO.

01-300

5T0114

01-300

5T8199

Material of component

PART IDENT

MATERIAL

ACAC Inlet duct

Pure Titanium and Titanium alloy

General

Price and availability - Refer to IAE.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard Workshop EquipmentLOCALStandard Workshop Equipment
Fluorescent penetrant inspection equipment0AM53Fluorescent penetrant inspection equipment
Heat Protective GlovesLOCALProtective Gloves, Heat
Milling machineLOCALMilling machine
Portablegrinding equipmentLOCALPortable grinding equipment
Vibroengraving equipmentLOCALVibroengraving equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 03-026 LIQUID NITROGENLOCALCoMat 03-026
CoMat 05-020 WATERPROOF SILICON CARBIDELOCALCoMat 05-020
CoMat 05-021 WATERPROOF SILICON CARBIDE44197CoMat 05-021

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 75-22-41-320-001 Machine the Bore Oversize

      1. Install the ACAC Inlet duct onto the machine.

      1. Secure in position for safe machining.

      2. Use a boring machine.

      2. Machine the bore oversize.

      1. Machine to remove all the damage and wear. Only remove the minimum amount of material.

      2. Maximum diameter of the thru and counter bore are 0.4909 in. (12.470 mm) and 0.5197 in. (13.200 mm).

      3. Use suitable boring machine, with standard workshop equipment.

        NOTE

        A bore that does not clean up to give the necessary finish and correct interference limit on the diameter, when you install the bush, must be machined to the next oversize, refer to Figure.

      3. Remove the sharp edges.

      1. Use standard workshop equipment.

    2. SUBTASK 75-22-41-320-002 Make the Repair Part

      1. Make the bush.

      1. Make sure that all dimensions of manufactured bush are given in Figure are met.

      2. Remove all sharp edges.

      2. Measure the dimensions of the bush.

      1. Resultant interference fit between machined hole and bush diameter to be 0.00012 to 0.00189 in. (0.003 to 0.048 mm).

      2. Refer to Figure.

    3. SUBTASK 75-22-41-230-001 Examine the Repair Part

      1. Crack test of the bush.

        1. Do the crack test.

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

      2. Cracked

      1. Do Step again.

    4. SUBTASK 75-22-41-220-001 Examine the Machined Area

      1. Clean the duct.

      1. Refer to SPM TASK 70-11-26-300-503.

      2. Crack test on the bush location bore.

        1. Do the crack test.

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

        2. Cracked

        1. Do Step again. Machine bore to the next oversize.

        3. Cracks in the area exceeding 0.5197 in. (13.200 mm) in diameter, refer to Figure and Figure.

        1. Reject

    5. SUBTASK 75-22-41-220-002 Dimensional Check the Machined Area and Repair Part

      1. Measure the dimension of the bush location bore and diameter of the new bush.

      1. Make sure there will be an interference limit of 0.00012 to 0.00189 in (0.003 to 0.048 mm), during assembly.

      2. If necessary, do Step to Step again.

    6. SUBTASK 75-22-41-350-001 Install Standard or Oversize Bush

      1. Freeze and install oversize bush in the ACAC inlet duct.

      3. Refer to Figure.

    7. SUBTASK 75-22-41-220-003 Examine the Bush for Location

      1. Visually examine the bush for location.

      1. Make sure the bush is in position and flush to slightly under flush to the lug surface of the ACAC inlet duct.

      2. If necessary, do these procedures again.

    8. SUBTASK 75-22-41-350-002 Identify the Repair

      1. Make a mark VRS1651 TASK 75-22-41-300-007 adjacent to the assembly number.

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

    9. Figure: Air Cooled Air Cooler (ACAC) Inlet Duct

    Air Cooled Air Cooler (ACAC) Inlet Duct

    Figure: Detail of modified hole

    Detail of modified hole

    Figure: Detail of the Repair part

    Detail of the Repair part

    Figure: Detail of Installation Hole and Tools

    Detail of Installation Hole and Tools

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised incorrect task number. (typographical error)

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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:LOCAL
Supply Number:CoMat 03-026
Type:sp01
Supply Short Name:CoMat 03-026 LIQUID NITROGEN
Supply Name:CoMat 03-026 LIQUID NITROGEN
Specification Groups:
Doc NumberType
OMAT:220BB-N-411 T2GBC1
JCR-135BB-N-411 T2GBC1
Suppliers:
ManufacturerRemarks
LOCAL
U2046
U2096
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
Link not Found
Manufacturer Code:LOCAL
Tool Number:Milling machine
Tool Name:Milling machine
Manufacturer Code:LOCAL
Tool Number:Portable grinding equipment
Tool Name:Portablegrinding equipment
Manufacturer Code:LOCAL
Tool Number:Protective Gloves, Heat
Tool Name:Heat Protective Gloves
Manufacturer Code:LOCAL
Tool Number:Standard Workshop Equipment
Tool Name:Standard Workshop Equipment
Manufacturer Code:LOCAL
Tool Number:Vibroengraving equipment
Tool Name:Vibroengraving equipment