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 75-24-49-300-036 LPT ACC Cooling Air Ducts - Replace The Tubes Of The Upper Duct Assembly, Repair-036 (VRS4396)
Material of component
PART IDENT | PART No. | MATERIAL |
Cooling Air Duct, assembly | 3A2380 | X10CrNi |
3A2658 | X10CrNi, Housing and tubes TiCu6-4, Tubes (optional) |
General
Price and availability - none.
The practices and processes referred to in the procedure by the TASK number are in the SPM.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Magnifying glass | LOCAL | Magnifying glass |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-204 WELDING FILLER WIRE | LOCAL | CoMat 03-204 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| TUBE - ASSEMBLY OF | 0AM53 | 3A2676 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2650 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2677 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2678 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2652 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2654 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2679 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2680 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2681 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2648 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2682 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2683 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2684 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2685 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2686 | 1 | |
| TUBE - ASSEMBLY OF | 0AM53 | 3A2687 | 1 |
Safety Requirements
NONEProcedure
Use a soft cloth only.
Clean the tube end.
SUBTASK 75-24-49-110-079 Clean the Back Tube End
Use 10x Magnifying glass. Possible cracks cause decrease in weld strength.
Possible cracks cause decrease in weld strength.
Do the test for cracks.
SUBTASK 75-24-49-220-126 Examine the Parts for Cracks
Refer to SPM TASK 70-31-13-310-501.
Clean the surfaces to be welded.
SUBTASK 75-24-49-110-080 Clean the Surfaces to be Welded
Refer toFigure and Figure and SPM TASK 70-31-13-310-501.
For purity of welds, weld in protective gas environment.
Use CoMat 03-204 WELDING FILLER WIRE as necessary.
Use applicable fixture.
No heat treatment required after weld repair.
Weld replacement tube into position, use tungsten inert gas method.
SUBTASK 75-24-49-310-062 Weld the Replacement Tube
Refer to SPM TASK 70-31-13-310-501 for acceptance standards.
Examine the weld quality.
SUBTASK 75-24-49-220-127 Examine the Welds
Refer to SPM TASK 70-23-05-230-501.
Medium sensitivity.
No cracks permitted.
Do the test for cracks.
SUBTASK 75-24-49-230-111 Examine the Repaired Areas for Cracks
Figure: Upper Air Cooling Duct, Assembly - Replacement of Tubes
Upper Air Cooling Duct, Assembly - Replacement of Tubes
Upper Air Cooling Duct, Assembly - Replacement of Tubes
Upper Air Cooling Duct, Assembly - Replacement of Tubes
Figure: Upper Air Cooling Duct, Assembly - Replacement of Tubes
Upper Air Cooling Duct, Assembly - Replacement of Tubes
Upper Air Cooling Duct, Assembly - Replacement of Tubes
