TASK 72-50-53-300-026 Turbine Exhaust Case (TEC) - Remove/Install (Or Replace) The 5 Bearing Carbon Seal Housing, Repair-026 (VRS5410)

DMC:V2500-A0-72-50-5301-10A-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 72-50-53-300-026 Turbine Exhaust Case (TEC) - Remove/Install (Or Replace) The 5 Bearing Carbon Seal Housing, Repair-026 (VRS5410)

Effectivity

FIG/ITEM

PART NO.

01-001

4A8014

01-001

4A8025

Material of component

IAE

DESCRIPTION

SYMBOL

MATERIAL

Turbine exhaust case

-

Corrosion and heat resistant iron

base alloy

General

Price and availability - none

The oil/air seal lands must be machined to the last dimensions, after the seal housing has been installed on the turbine exhaust case. Refer to VRS5330, TASK 72-50-53-300-003 and VRS5331, TASK 72-50-53-300-004.

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

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Standard workshop equipmentLOCALStandard workshop equipment

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Solid CSK head rivetAS1648915
Solid CSK head rivetAS16529AR
Solid CSK head rivetAS125009AR

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-350-072 Remove the Damaged Carbon Seal Housing

    1. Refer to: Figure

    2. Make a mark in the seal housing to ensure it is returned to the same angular position.

      3. Remove the rivets.

      1. Prevent damage to the components when the rivets are removed.

        Use a hand grinder.

      4. Drift rivets out from each hole.

      1. Use a drift.

    5. Remove the carbon seal housing.

    2. SUBTASK 72-50-53-220-139 Inspect the Rivet Holes

    1. Inspect the rivet holes and the adjacent surfaces.

    3. SUBTASK 72-50-53-230-073 Examine the Case

      1. Do the fluorescent penetrant inspection on the rivet holes and the adjacent surfaces.

      1. Refer to TASK 72-23-05-230-501.

        Cracks are not permitted.

    4. SUBTASK 72-50-53-350-073 Repair the Carbon Seal Housing

      1. Repair the Carbon seal as necessary.

      1. Refer to Repair, VRS5329, TASK 72-50-53-300-002.

        Repair, VRS5330, TASK 72-50-53-300-003.

        Repair, VRS5331, TASK 72-50-53-300-004.

    5. SUBTASK 72-50-53-320-137 Match Drill Rivet Holes

    1. Refer to: Figure

      2. If using new carbon seal housing (02-180) match drill the rivet holes for the new carbon seal housing with the existing holes of the turbine exhaust case.

      1. See Figure.

    6. SUBTASK 72-50-53-350-074 Install the Carbon Seal Housing

    1. Refer to: Figure

      2. Heat the seat of the seal housing.

      1. Use the hot air gun.

      3. Install the seal housing.

      1. Align the marks previously applied, to ensure correct angular position.

    4. Let the parts get the ambient temperature.

      5. Fit the new rivets.

      1. Rivet heads must be flush with, or below the surface of, seal housing. You can use optional oversized rivets (AS16529 or AS125009 ), if necessary.

        Repair, VRS5405, TASK 72-50-53-300-021 (REPAIR-021).

    7. SUBTASK 72-50-53-220-140 Inspect the Rivets

    1. Inspect the rivets for security and cracks.

    2. Examine unit surfaces for excessive gap.

    8. SUBTASK 72-50-53-350-075 Record the Repair

      1. Vibro-engrave VRS5410 adjacent to the part number.

      1. Remove the metal lifted by marking.

        Use vibrating marking pencil.

    9. Figure: Remove/install the carbon seal housing in the turbine exhaust case

    Remove/install the carbon seal housing in the turbine exhaust case

    Figure: Match drill the carbon seal housing (PN 4P8036) rivet holes in the turbine exhaust case

    Match drill the carbon seal housing (PN 4P8036) rivet holes in the turbine exhaust case

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

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Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
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