TASK 72-50-22-300-154 LPT Stage 5 Vane - Braze Repair Cracks and Surface Damage of the Stage 5 Turbine Vane, Repair 154 (VRS4624)

DMC:V2500-A0-72-50-2204-08A-623A-C|Issue No:001.00|Issue Date:2017-08-01

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 72-50-22-300-154 LPT Stage 5 Vane - Braze Repair Cracks and Surface Damage of the Stage 5 Turbine Vane, Repair 154 (VRS4624)

Effectivity

FIG/ITEM

PART NO.

01-350

3A3120

Material of component

PART IDENT

IAE SYMBOL

MATERIAL

Stage 5 turbine vane

MAR-M247

General

Price and availability - none

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

Make sure that the necessary cleaning and inspection procedures are done before this repair.

Only one braze repair is permitted per part. A "MB1" marking adjacent to the part number shows that the part was repaired before.

Do not braze repair nicks, dents or pits more than 0.020 in. (0,51 mm) maximum depth.

Before repair remove the honeycomb, refer to VRS4580, TASK 72-50-22-300-129 (REPAIR-129).

After repair install the honeycomb, refer to VRS4580, TASK 72-50-22-300-129 (REPAIR-129).

Before repair remove the Aluminide or Gas Phase Coating, refer to VRS4622, TASK 72-50-22-300-152 (REPAIR-152).

After repair replace the Aluminide or Gas Phase Coating, refer to VRS4622, TASK 72-50-22-300-152 (REPAIR-152).

Repair Facilities

The Proprietary nature of this repair requires that any facility not authorized to accomplish this repair either, utilize the Authorized Repair Vendors listed below or contact the IAE Repair Services Group to determine if a qualification program can be initiated at their facility.

IAE INTERNATIONAL AERO ENGINES AG

400 Main Street, M/S 121-10

East Hartford, CT 06118

USA

Attn: Manager Repair Services

Authorized repair vendors who can do VRS4624, TASK 72-50-22-300-154 (REPAIR-154) are listed below:

MTU MAINTENANCE GMBH

Muenchner Strasse 31

30855 Langenhagen

Germany

The designation by IAE of an authorized repair vendor indicates that the repair vendor has demonstrated the necessary capability to enable him to carry out the listed repair work. However, IAE make no warranties or representations concerning the qualifications or quality standards of the repair vendors to carry out the repair work, and accepts no responsibility whatsoever for any work that may be carried out by a repair vendor, other than when IAE is listed as the repair vendor. Authorized repair vendors do not act as agents or representatives of IAE.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

Requirements After Job Completion

Follow-On Conditions

NONE