TASK 72-50-21-300-002 LPT Case - Replace The Locating Pin, Repair-002 (VRS4002)

DMC:V2500-A0-72-50-2101-00A-920A-C|Issue No:002.00|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 72-50-21-300-002 LPT Case - Replace The Locating Pin, Repair-002 (VRS4002)

Effectivity

FIG/ITEM

PART NO.

01-010

3A0807

01-010

3A0990

01-010

3A0991

01-010

3A1908

01-010

3A2183

01-010

3A2265

01-010

3A2447

01-010

3A2533

Material of component

DESCRIPTION

SYMBOL

MATERIAL

LP turbine case

Inconel 718

Headless shoulder pin

X 10

General

Price and availability - none

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

NOTE

For equipment and materials necessary to do this repair refer to the SPM TASK 70-23-05-230-501 and SPM TASK 70-39-03-390-501
Equivalent materials or equipment may be used

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Electric hand drillLOCALElectric hand drill
Illuminated comparator magnifierLOCALIlluminated comparator magnifier
Hydraulic portable yoke riveterLOCALHydraulic portable yoke riveter

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Headless shoulder pin3A07091

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-21-350-053 Remove the Worn Locating Pin of the LP Turbine Case

      1. Machine off flared portion of the locating pin.

      1. Use electric hand drill with a 0.1778in. (4.5 mm) drill.

        Care to be taken that the flange bore or face do not become damaged.

        Refer to Figure.

      2. Push through the remaining parts of shaft and dowel.

      1. Use center punch or similar.

        Remove sharp edges from the pin, which could cause scoring in the bore.

    2. SUBTASK 72-50-21-230-058 Examine the Flange of the LP Turbine Case for Cracks

      1. Do the test for cracks.

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

        Use medium sensitivity level.

        No cracks are permitted.

    3. SUBTASK 72-50-21-220-072 Examine the Flange of the LP Turbine Case

      1. Examine for damage in the bore.

      1. Scratches are permitted but remove lifted material.

        Use illuminated comparator magnifier.

    4. SUBTASK 72-50-21-350-054 Install the Replacement Locating Pin

      1. Install hollow end of the new locating pin in the flange of the LP turbine case.

      1. The shoulder of the pin must be located against the face of the flange.

      2. Flare over the head of the pin.

      1. Use hydraulic portable yoke riveter.

        The pin must be held tight.

        No movement is permitted.

        Refer to the SPM TASK 70-39-03-390-501.

    5. SUBTASK 72-50-21-220-073 Do the Post Repair Inspection

      1. Visually examine the flared part of the locating pin for cracks.

      1. Use illuminated comparator magnifier.

        No cracks are permitted.

      2. Examine for correct assembly.

      1. Use illuminated comparator magnifier.

        The flare must be symmetrically peened.

        The shoulder of the pin must be located against the face of the flange.

        Refer to the SPM TASK 70-39-03-390-501.

        Refer to Figure.

    6. Figure: Replace the locating pin

    Replace the locating pin

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

Link not Found
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Link not Found
Manufacturer Code:LOCAL
Tool Number:Electric hand drill
Tool Name:Electric hand drill
Manufacturer Code:LOCAL
Tool Number:Hydraulic portable yoke riveter
Tool Name:Hydraulic portable yoke riveter
Manufacturer Code:LOCAL
Tool Number:Illuminated comparator magnifier
Tool Name:Illuminated comparator magnifier