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 75-24-49-300-012 LPT ACC Support Assemblies - Weld Repair, Repair-012 (VRS4256)
Material of component
DESCRIPTION | RR SYMBOL | MATERIAL |
Support Assembly No.2 | C263 | |
Support Assembly No.1 | C263 | |
Support Assembly No.6 | C263 | |
Support Assembly No.4 | C263 | |
Support Assembly No.3 | C263 | |
Support Assembly No.5 | C263 |
General
Price and availability - none.
The practices and processes referred to in the procedure by the TASK number are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Crack detection kit (fluorescent) | LOCAL | Crack detection kit (fluorescent) | ||
| Gas furnace | LOCAL | Gas furnace | 2400 deg F (1315 deg C) | |
| Hand Held Pneumatic Grinder | LOCAL | Hand Held Pneumatic Grinder | ||
| Rotary files | LOCAL | Rotary files | ||
| Tungsten inert gas system (TIG) | LOCAL | Tungsten inert gas system (TIG) | ||
| Unltraviolet lamp | LOCAL | Ultraviolet lamp |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-184 WELDING FILLER WIRE, NICKEL | LOCAL | CoMat 03-184 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Refer to SPM TASK 70-31-13-310-501.
Clean the areas around the cracks on both sides of the support assemblies if possible.
SUBTASK 75-24-49-110-058 Clean the Support Assemblies
Before weld repair, remove the screw thread inserts if necessary. Refer to VRS4257, (Repair-013) TASK 75-24-49-300-013.
Refer to SPM TASK 70-31-13-310-501.
Use CoMat 03-184 WELDING FILLER WIRE, NICKEL if necessary.
Tungsten inert gas weld cracks on the two sides of the support assemblies if necessary.
SUBTASK 75-24-49-350-070 Weld Repair the Support Assemblies
Refer to SPM TASK 70-23-05-230-501.
No cracks are permitted.
Do the test for cracks.
SUBTASK 75-24-49-230-062 Examine the Welded Areas for Cracks
Use Hand Held Pneumatic Grinder and Rotary files if necessary.
No raised material is permitted on the ground surface.
If necessary dress the welds until they make a continuous surface with the adjacent areas.
SUBTASK 75-24-49-350-071 Dress the Welded Areas
CAUTION
DO NOT OVERHEAT THE AREAS WHICH ARE DRESSED.Refer to Figure.
Use Gas furnace for eight hours at 1472 deg F (800 deg C).
Decrease the temperature in air.
Heat treat the support assemblies.
Refer to VRS4257, (Repair-013) TASK 75-24-49-300-013.
After repair and heat treatment install the new screw thread inserts.
SUBTASK 75-24-49-350-072 Heat Treat the Support Assemblies
Refer to SPM TASK 70-23-05-230-501.
Do the test for cracks.
SUBTASK 75-24-49-230-064 Examine the Welded Areas for Cracks
Figure: Weld Repair of the Support Assemblies
Weld Repair of the Support Assemblies
