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 75-24-49-300-001 LPT ACC Air Manifold and Ducts Remaining Parts - Weld Repair the Half Loop Clamp, Repair-001 (VRS4029)
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 | ||
| TIG welding equipment | LOCAL | TIG welding equipment | ||
| 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 half loop clamp.
SUBTASK 75-24-49-110-056 Clean the Half Loop Clamp
Refer to Figure.
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 half loop clamp if necessary.
SUBTASK 75-24-49-350-064 Weld Repair the Half Loop Clamp
Refer to SPM TASK 70-23-05-230-501.
No cracks are permitted.
Do the test for cracks.
SUBTASK 75-24-49-230-058 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 75-24-49-350-065 Dress the Welded Areas
CAUTION
DO NOT OVERHEAT THE AREAS WHICH ARE TO BE DRESSED.Refer to Figure.
Use Gas furnace for eight hours at 1472 deg F (800 deg C).
Decrease the temperature in the air.
Heat treat the half loop clamp.
SUBTASK 75-24-49-350-066 Heat Treat the Half Loop Clamp
Refer to SPM TASK 70-23-05-230-501.
No cracks in welds are permitted.
Do the test for cracks on repaired areas.
SUBTASK 75-24-49-230-059 Do the Post Repair Inspection
Figure: Weld Repair of the Half Loop Clamp
Weld Repair of the Half Loop Clamp
