TASK 72-50-53-300-021 Turbine Exhaust Case (TEC) - Remove/Install (Or Replace) The Thermal Blanket, Repair-021 (VRS5405)

DMC:V2500-A0-72-50-5301-09A-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 72-50-53-300-021 Turbine Exhaust Case (TEC) - Remove/Install (Or Replace) The Thermal Blanket, Repair-021 (VRS5405)

Effectivity

FIG/ITEM

PART NO.

01-001A

4A8014

01-001B

4A8025

Material of component

IAE

DESCRIPTION

SYMBOL

MATERIAL

Turbine exhaust case

-

Corrosion and heat resistant iron

base alloy

General

Price and availability - none

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
Rivet, solid csk headAS1648915
Rivet, solid csk headAS16529AR
Rivet, solid csk headAS125009AR
Thermal blanket4T80221
Thermal blanket4T8003REF

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-50-53-350-076 Remove the Damaged Thermal Blanket

    1. Refer to: Figure

      2. Remove the rivets.

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

        Use a hand grinder.

      3. Drift rivets out from each hole.

      1. Use a drift.

    4. Remove thermal blanket.

    2. SUBTASK 72-50-53-220-141 Inspect the Rivet Holes

    1. Inspect the rivet holes and the adjacent surfaces.

    3. SUBTASK 72-50-53-230-074 Examine the Case

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

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

        Cracks are not permitted.

        Use FPI inspection station.

    4. SUBTASK 72-50-53-350-077-A00 Install the New Thermal Blanket

    1. Refer to: Figure

      NOTE

      As an option to this procedure, you can do the procedure in Step to install the original thermal blanket. The original thermal blanket must be acceptable by TASK 72-50-53-200-003-A00 (INSPECTION/CHECK-003, CONFIG-002).

    2. Install the new thermal blanket.

      3. Do the holes in the new thermal blanket.

      1. Use the existing holes in the seal housing seat, as a drill mask.

      4. Fit the new rivets.

      1. Rivet heads must be flush with, or below the surface of, seal housing.

    5. SUBTASK 72-50-53-350-077-B00 Install the Original Thermal Blanket

    1. Refer to: Figure

    2. Install the original thermal blanket.

      3. Line up the existing holes in the thermal blanket with the holes in the seal housing.

      1. If the rivet holes are damaged, you can enlarge the holes for oversized rivets, PN AS16529 or AS125009 .

    4. Install the rivets, PN AS16489 , AS16529 or AS125009 as applicable.

    6. SUBTASK 72-50-53-220-142 Inspect the Rivets

    1. Inspect the rivets for security and cracks.

    2. Examine unit surfaces for excessive gap.

    7. SUBTASK 72-50-53-350-078 Record the Repair

      1. Vibration peen VRS5405 adjacent to the part number.

      1. Refer to the SPM TASK 70-09-00-400-501. Use the vibration peen method with 0.006 in. (0.15 mm) maximum depth.

    8. Figure: Repair Details and Dimensions

    Repair Details and Dimensions

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial correction due to conversion

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Manufacturer Code:LOCAL
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