TASK 72-32-86-300-009 Intermediate Structure Rear Fairing - Replace Damaged Pads, Repair-009 (VRS1983)

DMC:V2500-A5-72-32-8600-03A-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

V2500-A5

Common Information

TASK 72-32-86-300-009 Intermediate Structure Rear Fairing - Replace Damaged Pads, Repair-009 (VRS1983)

Effectivity

FIG/ITEM

PART NO.

01-100

5A1688

01-100

5A1755

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Rear fairing assembly

Resin impregnated carbon fiber fabric

General

Price and availability - none

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

NOTE

Equivalent materials or equipment or tools can be used.

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard equipmentLOCALStandard equipment

none

IAE 3J12143 Machining fixture0AM53IAE 3J12143

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-124 ISOPROPYL ALCOHOLLOCALCoMat 01-124
CoMat 02-099 LINT-FREE CLOTHLOCALCoMat 02-099
CoMat 05-050 SILICON CARBIDE GRIT1E1X8CoMat 05-050
CoMat 05-082 WATERPROOF SILICON CARBIDE44197CoMat 05-082
CoMat 05-083 WATERPROOF SILICON CARBIDE44197CoMat 05-083
CoMat 06-073 INK, METAL MARKING88303CoMat 06-073
CoMat 08-013 COLD CURING SILICONE COMPOUNDLOCALCoMat 08-013
CoMat 08-014 PRIMER, SILICONE ADHESIVE/SEALANT0AM53CoMat 08-014

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Block5A1925AR

(Pad)

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-32-86-350-067 Remove the Dimple Washers and Damaged Pads from the Rear Fairing Assembly

    1. Refer to Figure.

      2. Cut off the damaged dimple washers and damaged pads from the rear fairing assembly.

        1. Do not damage the dimple washer holes of the rear fairing assembly.

        1. Discard the initial pads.

      3. Remove residual adhesive from the rear fairing assembly.

    2. SUBTASK 72-32-86-350-068 Prepare the New Pads for Replacement

    1. Refer to Figure.

      2. Drill dimple washer hole in the pad center.

        1. Use the repair part given in 2.E.

        1. Make a 0.256 to 0.270 in. (6.50 to 6.86 mm) hole through the pad.

    3. SUBTASK 72-32-86-220-097 Examine New Pads

    1. Refer to Figure.

      2. Dimensionally examine the new pads.

      1. Make sure that the dimensions are within given limits. If not, go to Step again.

    4. SUBTASK 72-32-86-360-056 Prepare the Mating Surface for the Cold Curing Silicon Compound

    1. Refer to Figure.

      2. CAUTION

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

        Remove the grease from the mating surfaces of the rear fairing assembly and pads.

      3. Make the mating surfaces rough to increase adhesion of silicone compound for the rear fairing assembly.

      4. Dry abrasive blast the pads surface.

      1. Use CoMat 05-050 SILICON CARBIDE GRIT at 75.8 to 81.4 psi (523.1 to 561.6 KPa) pressure and 45 degree impingement angle.

    5. SUBTASK 72-32-86-220-098 Examine the Rear Fairing Parent Material

      1. Visually examine the fairing parent material.

        1. Make sure that all residual adhesive is removed.

        1. Make sure the fairing parent material is not damaged.

        2. If damaged, reject it.

    6. SUBTASK 72-32-86-360-057 Apply and Cure the Cold Curing Silicone Compound

    1. Refer to Figure and Figure.

      2. CAUTION

        DO NOT EAT OR SMOKE AT LOCATIONS WHERE THESE MATERIALS ARE USED.

        NOTE

        The primer must be applied immediately after the mating surfaces are prepared. Cure at room temperature.

        Apply a thin layer of primer only to the prepared mating surface of rear fairing assembly.

    3. Dry in the air from 30 to 60 minutes.

      4. Apply the cold curing silicon rubber compound to each of the mating surfaces as soon as the primer is dry.

      5. Install the pads to the inside of the rear fairing assembly aligning the dimple washer holes, in not more than ten minutes after the compound is applied.

        1. Keep the required position and apply sufficient pressure to ensure good adhesion.

        1. Use a clamp.

        2. Make sure that the compound can be seen around the pads edges.

        3. Make smooth the fillet radius using the protruded silicone rubber compound around three edges.

        4. The rear edge of the pad may be filled with silicon rubber compound.

        5. Do not damage the assembled component.

    6. Remove excess compound.

      7. Cure the compound at room temperature for 48 hours.

      1. Continue to apply sufficient pressure during this step.

    7. SUBTASK 72-32-86-220-099 Examine the Repaired Area of the Rear Fairing Assembly

    1. Refer to Figure and Figure.

      2. Dimensionally and visually examine the repaired area.

        1. Make sure that the adhesive is correctly profiled.

        1. Make sure that the pad is correctly positioned.

        2. Peeling is not permitted.

        3. Excess adhesive must be visible all round the pads as a fillet radius on three sides and a smoothed contour at the rear edge.

        4. Examine for disbond.

    8. SUBTASK 72-32-86-322-001 Machine the Bonded Pads of the Rear Fairing Assembly

    1. Refer to Figure.

      2. Machine the bonded pads to the finish dimensions.

      3. Dress any steps found in the countersunk hole.

        1. Material of the pad must be removed smoothly to keep the countersunk hole contour of the rear fairing.

      4. Clean repaired area.

        1. Make sure that dimple washer holes are free of debris.

    9. SUBTASK 72-32-86-220-100 Examine the Machined Pads of the Rear Fairing Assembly

    1. Refer to Figure.

      2. Visually examine the machined pads.

      1. No cracks are permitted.

      3. Dimensionally examine the machined pads.

      1. Make sure that the dimensions are within given limits.

    10. SUBTASK 72-32-86-360-058 Install the Dimple Washer

      1. Install the dimple washers to the rear fairing assembly.

      1. Refer to Repair, VRS1784 TASK 72-32-86-300-003 (REPAIR-003).

    11. SUBTASK 72-32-86-350-069Identify the Repair

      1. Mark VRS1983, adjacent to the part number.

        1. Use the ink method.

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

    12. 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

Requirements After Job Completion

Follow-On Conditions

NONE
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:1E1X8
Enterprise Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
BU Name:SAINT-GOBAIN CERAMICS AND PLASTICS, INC
Street:1 NEW BOND ST
City:WORCESTER
State:MA
Zip Code:01606
Country:UNITED STATES OF AMERICA
Phone Number:1-508-795-5000, 1-800-243-0028
Fax Number:1-508-795-2380
Internet:www.saint-gobain-northamerica.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:88303
Enterprise Name:PHILLIPS PROCESS CO., INC
BU Name:PHILLIPS PROCESS CO., INC
Street:20 MAGNOLIA STREET
City:ROCHESTER
State:NY
Zip Code:14608-2931
Country:USA
Phone Number:1-585-436-2310
Fax Number:1-585-436-2310
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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:X222X
Supply Number:CoMat 02-099
Type:sp01
Supply Short Name:CoMat 02-099 LINT-FREE CLOTH
Supply Name:CoMat 02-099 LINT-FREE CLOTH
Specification Groups:
Doc NumberType
WHERE COMAT 02-099 IS SPECIFIED WITH NO SUFFIX, USE COMAT 02-099A OR COMAT 02-099B.
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:1E1X8
Supply Number:CoMat 05-050
Type:sp01
Supply Short Name:CoMat 05-050 SILICON CARBIDE GRIT
Supply Name:CoMat 05-050 SILICON CARBIDE GRIT
Specification Groups:
Doc NumberType
PMC 3053-31SILICON CARBIDE 5348 COATING No. 60 GRIT
Suppliers:
ManufacturerRemarks
1E1X8
Manufacturer Code:1E1X8
Supply Number:CoMat 05-082
Type:sp01
Supply Short Name:CoMat 05-082 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-082 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/39 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 120 (ANSI B74.18)
JCR-192 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:1E1X8
Supply Number:CoMat 05-083
Type:sp01
Supply Short Name:CoMat 05-083 WATERPROOF SILICON CARBIDE
Supply Name:CoMat 05-083 WATERPROOF SILICON CARBIDE
Specification Groups:
Doc NumberType
OMAT: 5/40 (RR REF)WATERPROOF SILICON CARBIDE ABRASIVE PAPER, CAMI GRIT DESIGNATION 100 (ANSI B74.18)
JCR-193 (JAEC REF)
Suppliers:
ManufacturerRemarks
1E1X8
K6835
LOCAL
Manufacturer Code:LOCAL
Supply Number:CoMat 06-073
Type:sp01
Supply Short Name:CoMat 06-073 INK, METAL MARKING
Supply Name:CoMat 06-073 INK, METAL MARKING
Suppliers:
ManufacturerRemarks
LOCAL
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
Manufacturer Code:0AM53
Tool Number:IAE 3J12143
Tool Name:IAE 3J12143 Machining fixture
Manufacturer Code:LOCAL
Tool Number:Standard equipment
Tool Name:Standard equipment