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 72-44-20-300-025 HPT Stage 1 Vane - Repair Wear On The Tab, Repair-025 (VRS3562)
General
The practices and processes referred to in this procedure by the TASK number are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Portablegrinding equipment | LOCAL | Portable grinding equipment | ||
| Austenitic stainless wire brush | LOCAL | Austenitic stainless wire brush |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-243 WELDING FILLER WIRE | LOCAL | CoMat 03-243 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Refer to the SPM TASK 70-11-03-300-503.
Clean the repair area.
SUBTASK 72-44-20-110-054 Clean the Repair Area of the Stage 1 HPT Vane Assembly
Refer to Figure.
Refer to SPM TASK 70-12-09-120-501 or SPM TASK 70-12-02-120-501.
Abrasive blast the repair area.
SUBTASK 72-44-20-120-053 Abrasive Blast the Repair Area
CAUTION
DO NOT ABRASIVE BLAST ON COATING THAT YOU APPLIED BY THE SPM TASK 70-34-03-340-501 UNLESS SPECIFIED BY VRS3158, TASK 72-44-20-300-018 (REPAIR-018, PAGE-901).Refer to Figure.
Use an Austenitic stainless wire brush.
Clean the area to be weld repaired and 0.100 in. (2.54 mm) beyond the repair area in all directions.
NOTE
Use small diameter wire to keep heat input to a minimum and to decrease the possibility of cracking because of heat.Use CoMat 03-243 WELDING FILLER WIRE and the manual gas tungsten (GTAW-MA) method or the manual plasma arc weld (PAW-MA) method.
Refer to the SPM TASK 70-31-13-310-501.
Use weld techniques that keep heat input to a minimum.
Weld to build up the anti-rotation slot.
SUBTASK 72-44-20-310-055 Weld to Build Up the Worn Anti-Rotation Slot of the Stage 1 HPT Vane Assembly
Do not let the part become cool too quickly.
You can use slow heating and cooling cycles to keep distortion to a minimum.
NOTE
You can do the stress relief at the same time as VRS3034 TASK 72-44-20-300-024 (REPAIR-024).Stress relieve the vane assembly at 1500 plus or minus 25 deg F (815.6 plus or minus 14 deg C) for four hours after welding.
SUBTASK 72-44-20-370-052 Stress Relieve the Stage 1 HPT Vane Assembly
Refer to Figure.
SUBTASK 72-44-20-320-054 Finish Machine or Blend the Weld Repaired Area of the Stage 1 HPT Vane Assembly
Refer to the SPM TASK 70-23-08-230-501.
Fluorescent penetrant inspect the repaired area.
SUBTASK 72-44-20-230-057 Fluorescent Penetrant Inspect the Repaired Area of the Stage 1 HPT Vane Assembly
Figure: Repair Details and Dimensions
Repair Details and Dimensions
