TASK 72-60-24-300-003 PMA Drive Housing - Repair The PMA Support Mating Surface And Flanged Bushing, Repair-003 (VRS5072)

DMC:V2500-A0-72-60-2404-00A-664A-C|Issue No:005.00|Issue Date:2021-05-01

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 72-60-24-300-003 PMA Drive Housing - Repair The PMA Support Mating Surface And Flanged Bushing, Repair-003 (VRS5072)

Effectivity

FIG/ITEM

PART NO.

01-180

4B0292

01-180

4B0352

Material of component

DESCRIPTION

SYMBOL

MATERIAL

Housing

-

AMS 4219

Flanged bushing

-

AMS 4152

General

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Other consumable materials are given in the SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
FPI Inspection stationLOCALFPI Inspection station
FreezerLOCALFreezer
IAE 3F10338 Drift0AM53IAE 3F103381
IAE 3F10436 Guide pin0AM53IAE 3F104361
OvenLOCALOven
Standard equipmentLOCALStandard equipment
Vibroengraving equipmentLOCALVibroengraving equipment

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 01-001 SOLVENT, DELETEDX111XCoMat 01-001
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)X222XCoMat 06-063

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
BUSHING0AM534L0089

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-24-350-064 Remove the Stud and the Lock Ring

    1. Refer to Figure.

      2. Remove the stud and the lock ring.

      1. Refer to Repair, VRS5071 TASK 72-60-24-300-002.

    2. SUBTASK 72-60-24-320-066 Machine the PMA Support Bore of the PMA Drive Housing

    1. Refer to Figure.

      2. Machine the PMA support bore.

      1. The diameter must be between 3.3449 in. to 3.3465 in. (84.96 mm to 85.00 mm).

      2. Deleted.

    3. SUBTASK 72-60-24-320-067 Machine the PMA Support Mating Surface of the PMA Drive Housing

    1. Refer to Figure.

      2. Machine the PMA support mating surface.

      1. The dimensions must be between 1.065 in. to 1.061 in. (27.05 mm to 26.95 mm)

      2. Deleted.

    4. SUBTASK 72-60-24-220-084 Examine the PMA Drive Housing

      1. Do a fluorescent penetrant inspection for cracks.

      2. Cracks are not permitted.

    5. SUBTASK 72-60-24-330-059 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surfaces.

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

    6. SUBTASK 72-60-24-350-065 Install the Bushing

    1. Refer to Figure.

      2. Install guide pin.

      1. Put IAE 3F10436 Guide pin 1 off in threaded hole in PMA support mating surface adjacent to machined bore.

    3. Install the bushing on the IAE 3F10338 Drift 1 off.

      4. WARNING

        DO NOT TOUCH THE HOT PARTS WITHOUT PROTECTIVE GLOVES.

        WARNING

        HOT PARTS CAN CAUSE REDDENING AND BLISTERING OF THE SKIN IF THE HANDS ARE NOT PROTECTED.

        WARNING

        IMMERSE THE CONTACTED AREA IN COLD WATER FOR 10 MINUTES IF THE SKIN IS BURNED. IMMEDIATELY GET MEDICAL ATTENTION IF PAIN OR BLISTERING PERSISTS.

        Increase the temperature of the housing and/or decrease the temperature of the assembled drift and bushing.

      1. Use an Oven and/or a freezer.

      2. Do not increase the temperature of the housing above 284 deg F (140 deg C).

      3. Do not decrease the temperature of the assembled drift and bushing below -58 deg F (-50 deg C).

      4. Use protective gloves.

    5. NOTE

      The difference in temperature between the parts must be not less than 248 deg F (120 deg C).

      Remove the housing from the oven and/or the assembled drift and bushing from the freezer.

      6. CAUTION

        INSTALL BUSHING IN MACHINED BORE IMMEDIATELY AFTER REMOVAL FROM FREEZER, OTHERWISE BUSHING CANNOT BE CORRECTLY INSTALLED.

        Install the bushing into machined bore.

      1. Use IAE 3F10338 Drift 1 off and an arbor press.

      2. Give sufficient back-up support at bushing bore area to prevent housing distortion when you install the bushing.

    7. Allow the parts to reach ambient temperature.

    8. Remove the drift and the guide pin.

    7. SUBTASK 72-60-24-320-068 Machine the Inner Diameter of the Bushing

    1. Refer to Figure.

      2. Machine the inner diameter of the bushing.

      1. The final dimensions must be 3.1890 in. to 3.1904 in. (81.000 mm to 81.035 mm).

      2. Chamfer as required.

      3. Deleted.

    8. SUBTASK 72-60-24-320-069 Machine the Flange Surface of the Bushing

    1. Refer to Figure.

      2. Machine and chamfer the flange surface of the bushing.

        1. The dimensions must be 1.1457 in. to 1.1378 in. (29.100 mm to 28.900 mm).

        1. Deleted.

    9. SUBTASK 72-60-24-330-060 Apply the Chromate Conversion Coating

      1. Apply the chromate conversion coating to the machined surfaces.

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

    10. SUBTASK 72-60-24-350-066 Install the New Stud

    1. Refer to Figure.

      2. Install the new stud and the new lock ring.

      1. Refer to Repair, VRS5071 TASK 72-60-24-300-002.

    11. SUBTASK 72-60-24-350-067 Record the Repair

      1. Vibro engrave VRS5072 adjacent to the part number.

      2. Remove lifted metal.

    12. Figure: Repair the PMA Support Mating Surface and Flanged Bushing in PMA Drive Housing

    Repair the PMA Support Mating Surface and Flanged Bushing in PMA Drive Housing

    Figure: Repair the PMA Support Mating Surface and Flanged Bushing in PMA Drive Housing

    Repair the PMA Support Mating Surface and Flanged Bushing in PMA Drive Housing

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Deleted grinding machine from support equipment and procedural steps. (19VF825)

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:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:X111X
Enterprise Name:N/A – DELETED CONSUMABLE MATERIAL
Manufacturer Code:X222X
Enterprise Name:N/A – REFER TO APPLICABLE COMAT SUFFIX
Part Number:4L0089
Part Name:BUSHING
Manufacturer Code:0AM53
Manufacturer Code:X111X
Supply Number:CoMat 01-001
Type:sp01
Supply Short Name:CoMat 01-001 SOLVENT, DELETED
Supply Name:CoMat 01-001 SOLVENT, DELETED
Specification Groups:
Doc NumberType
wiring harnesses. Where CoMat 01‐001 is specified to clean mechanical components, use one or more of the solvents that SPM TASK 70‐11‐26‐300‐503 specifies as applicable.DELETED. Where CoMat 01‐001 is specified to clean electrical contacts or wiring harnesses, use one or more of the solvents that SPM TASK 70‐11‐57‐110‐501 specifies to clean electrical contacts or
Suppliers:
ManufacturerRemarks
X111X
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:LOCAL
Tool Number:FPI Inspection station
Tool Name:FPI Inspection station
Manufacturer Code:LOCAL
Tool Number:Freezer
Tool Name:Freezer
Manufacturer Code:0AM53
Tool Number:IAE 3F10338
Tool Name:IAE 3F10338 Drift
Manufacturer Code:0AM53
Tool Number:IAE 3F10436
Tool Name:IAE 3F10436 Guide pin
Manufacturer Code:LOCAL
Tool Number:Oven
Tool Name:Oven
Manufacturer Code:LOCAL
Tool Number:Standard equipment
Tool Name:Standard equipment
Manufacturer Code:LOCAL
Tool Number:Vibroengraving equipment
Tool Name:Vibroengraving equipment