TASK 72-60-21-300-035 Main Gearbox Casing - Replace The Damaged Pins, Repair-035 (VRS5257)

DMC:V2500-A0-72-60-2101-03A-920A-C|Issue No:002.00|Issue Date:2018-08-01

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 72-60-21-300-035 Main Gearbox Casing - Replace The Damaged Pins, Repair-035 (VRS5257)

Effectivity

FIG/ITEM

PART NO.

02-050

4B0053

02-050

4B0054

02-050

4B0055

02-050

4B0057

02-050

4B0400

02-050

4B0402

02-050

4B0423

Material of component

DESCRIPTION

RR

SYMBOL

MATERIAL

Accessory gearbox

casing

A357/T61

(AMS4219)

Aluminium alloy

General

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

NOTE

To identify the consumable materials, refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Workshop inspection equipmentLOCALWorkshop inspection equipment
Hand drillLOCALHand drill
Magnifying glassLOCALMagnifying glass

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Pin4P0193A/R

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-60-21-350-062 Remove the Damaged Pins from the Main Gearbox Casing

    1. Refer to Figure.

      2. Drill out carefully the damaged pins from the casing.

        1. Use hand drill.

        1. Do not remove parent material.

    2. SUBTASK 72-60-21-350-063 Examine the Main Gearbox Casing for Cracks

      1. Inspect the gearbox casing for cracks in the area of the hole.

      1. Use a magnifying glass.

    3. SUBTASK 72-60-21-350-064 Install the New Pins

    1. Refer to Figure.

    2. Verify that tight fit exists between the outer diameter of the new pins and the corresponding holes in the gearbox casing.

    3. Install the new pins.

    4. Figure: Repair details and dimensions

    Repair details and dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Added PN 4B0423 in effectivity table. (17VF825)

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Hand drill
Tool Name:Hand drill
Link not Found
Manufacturer Code:LOCAL
Tool Number:Workshop inspection equipment
Tool Name:Workshop inspection equipment