72-50-23-300-072 LPT Stage 7 Outer Shroud Seal Segment - Replace the Strip Seal of the Stage 7 Shroud Seal Segment, Repair 072 (VRS4631)

DMC:V2500-A0-72-50-2307-04A-920A-C|Issue No:001.00|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

72-50-23-300-072 LPT Stage 7 Outer Shroud Seal Segment - Replace the Strip Seal of the Stage 7 Shroud Seal Segment, Repair 072 (VRS4631)

Effectivity

FIG/ITEM

PART NO.

01-010

3A2956

Material of component

IAE

DESCRIPTION

SYMBOL

MATERIAL

Stage 7 shroud seal segment

Hastelloy X

General

Price and availability - none

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

Before repair remove the honeycomb, refer to Repair VRS4573 TASK 72-50-23-300-071.

After repair replace the honeycomb, refer to Repair VRS4573 TASK 72-50-23-300-071.

NOTE

  1. For more equipment and materials necessary to do this repair refer to the SPP TASK 70-11-03-300-503

  2. Equivalent equipment may be used.

NOTE

To identify the consumable materials refer to the OPCI.

NOTE

Special tools are identified in the procedure by the tool primary number

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Hand held grinderLOCALHand held grinder
IAE 3M14229 Clamping fixture0AM53IAE 3M142291

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
SEAL - STRIP0AM533A06701

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-23-326-001 Remove the Damaged Strip Seal

    1. Refer to Figure.

      2. Machine off the damaged strip seal.

      1. If a hand held grinder is used, be careful that the component becomes not to hot.

        Do not remove base material.

        Remove all braze material of the weld area.

        The machined surface must be smooth and flat.

    2. SUBTASK 72-50-23-110-005 Clean the Stage 7 Shroud Seal Segment

      1. Aqueous cleaning.

      1. Refer to SPP TASK 70-11-03-300-503.

    3. SUBTASK 72-50-23-220-005 Examine the Machined Surfaces

      1. Examine visually.

      1. No remaining weld is permitted.

    4. SUBTASK 72-50-23-230-002 Examine the Machined Surfaces for Cracks

      1. Do the test for cracks

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

        Use medium sensitivity level.

        No cracks are permitted.

    5. SUBTASK 72-50-23-110-006 Clean the Stage 7 Shroud Seal Segment

      1. Aqueous cleaning.

      1. Refer to SPP TASK 70-11-03-300-503.

    6. SUBTASK 72-50-23-310-003 Weld in the New Strip Seal

    1. Refer to Figure.

      2. Resistance weld the strip seal in position.

      1. Clamp the strip seal to prevent movement.

        Refer to SPP TASK 70-31-10-310-501.

    7. SUBTASK 72-50-23-220-006 Do the Post Repair Inspection

    1. Refer to Figure.

    2. Examine the new strip seal dimensionally

    8. SUBTASK 72-50-23-230-003 Examine the Welded Areas for Cracks

      1. Do the test for cracks

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

        Use medium sensitivity level.

        No cracks are permitted.

    9. SUBTASK 72-50-23-110-007 Clean the Stage 7 Shroud Seal Segment

      1. Aqueous cleaning.

      1. Refer to SPP TASK 70-11-03-300-503.

    10. Figure:

Requirements After Job Completion

Follow-On Conditions

NONE
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
Part Number:3A0670
Part Name:SEAL - STRIP
Manufacturer Code:0AM53
Manufacturer Code:LOCAL
Tool Number:Hand held grinder
Tool Name:Hand held grinder
Manufacturer Code:0AM53
Tool Number:IAE 3M14229
Tool Name:IAE 3M14229 Clamping fixture