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 72-45-31-300-007 HPT Stage 2 Hub - Machine Repair The Coupling Nut Contact Surface, Repair-007 (VRS3239)
General
The practices and processes referred to in the procedure by TASK number are in the SPM.
Price and availability - not applicable
Repair Facilities
The Source Demonstration requirements of this repair means that any facility not authorized to accomplish this repair either utilize the Authorized Repair Vendors listed below or contact IAE Repair Development Group to determine if a qualification program can be initiated at their facility.
IAE - INTERNATIONAL AERO ENGINES AG
400 Main Street
East Hartford
CT 06108 USA
Attn: Manager Repair Development
Authorized Repair Vendors for the Machine section of Repair VRS3239 are listed below:
PRATT AND WHITNEY OVERHAUL AND REPAIR OPERATIONS
Rotating Parts Repair Group
400 Main Street
East Hartford, CT 06108
USA
Well No. 14
Turbine Component Repair
Caval Tool Division
655 New Britain Ave.
Newington, CT 06131 USA
MTU Maintenance GmbH
Airport Hannover
Munchner Strasse 31
30855 Langenhagen, Germany
Ishikawajima - Harima Heavy Industries Co., Ltd.
Mizuho - Machi
Nishitama - Gun
Tokyo 190 - 12,
JAPAN
Attn: Program Manager, V2500
Authorized Repair Vendors for the Shot Peen section of Repair VRS3239 are listed below:
Metal Improvements Company Inc. (MIC)
145 Addison Road
Windsor, CT 06095 USA
MTU Maintenance GmbH
Airport Hannover
Munchner Strasse 31
30855 Langenhagen, Germany
Ishikawajima - Harima Heavy Industries Co., Ltd.
Mizuho - Machi
Nishitama - Gun
Tokyo 190 - 12,
JAPAN
Attn: Program Manager, V2500
The designation by IAE of an authorized repair vendor indicates that the repair vendor has demonstrated the necessary capability to enable it to carry out the listed repair work. However, IAE makes 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.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Machining equipment | LOCAL | Machining equipment | ||
| Shot peening equipment | LOCAL | Shot peening equipment | ||
| Standard inspection equipment | LOCAL | Standard inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-032 CAST STEEL SHOT, S170 | 42736 | CoMat 05-032 | ||
| CoMat 05-033 CAST STEEL SHOT DELETED | 0AM53 | CoMat 05-033 |
Spares
NONESafety Requirements
CAUTION
Procedure
Refer to Figure.
Set-up and machine the hub coupling nut contact surface to 4.501 in. (114.325 mm) minimum length to remove the damage.
Refer to Figure.
Machine the 0.000 to 0.005 in. (0.000 to 0.127 mm) dimension.
Refer to Figure.
Machine the 0.078 to 0.109 in. (1.98 to 2.77 mm) radius.
SUBTASK 72-45-31-320-051 Machine the Hub Coupling Nut Contact Surface
Refer to Figure.
Examine the repaired surfaces.
SUBTASK 72-45-31-220-084 Examine the Repair Area
Refer to Figure.
Do the procedure given in the SPM TASK 70-38-13-380-501.
Use CoMat 05-032 CAST STEEL SHOT, S170 or CoMat 05-033 CAST STEEL SHOT DELETED with a hardness of 45 to 55 HRS or equivalent.
Shot peen the repaired surfaces given in the Figure. The minimum intensity of 6A or equivalent is not required. You must shot peen the complete repaired area.
SUBTASK 72-45-31-380-051 Shot Peen the Hub Repaired Surfaces
Make a permanent mark by the procedures given in the SPM TASK 70-09-00-400-501.
Use the vibration peen method.
Mark VRS3239 adjacent to the part number.
SUBTASK 72-45-31-350-053 Identify the Repair
Figure: Stage 2 turbine hub coupling nut contact surface machine repair areas
Stage 2 turbine hub coupling nut contact surface machine repair areas
Figure: Stage 2 turbine hub coupling nut contact surface machine repair areas
Stage 2 turbine hub coupling nut contact surface machine repair areas
