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 72-50-41-300-003 LPT Shaft - Blend Repair, Repair-003 (VRS1491)
General
Price and availability - none
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Magnetic particle inspection equipment | LOCAL | Magnetic particle inspection equipment | ||
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment | ||
| Vibro-engraving equipment | LOCAL | Vibro-engraving equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-020 WATERPROOF SILICON CARBIDE | LOCAL | CoMat 05-020 | ||
| CoMat 05-021 WATERPROOF SILICON CARBIDE | 44197 | CoMat 05-021 | ||
| CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) | LOCAL | CoMat 06-022 |
Spares
NONESafety Requirements
NONEProcedure
Use abrasive stones or papers and/or fine file.
The surface finish of the repair must be same as the adjacent area.
Refer to the SPM TASK 70-35-03-300-501.
Make smooth and/or hand polish to remove burrs, nicks and/or scratches.
SUBTASK 72-50-41-350-054 Remove the Damage from the LP Turbine Shaft
Visually examine the repaired area for nicks, scratches and/or burrs using 10X magnifying glass.
Refer to TASK 72-50-41-200-000 (INSPECTION/CHECK-000).
Visually examine the repaired area.
SUBTASK 72-50-41-220-070 Examine the LP Turbine Shaft
SUBTASK 72-50-41-240-054 Examine the LP Turbine Shaft for Cracks
NOTE
This is an alternative to Step.Fluorescent penetrant examine the repaired area.
SUBTASK 72-50-41-230-059 Examine the Turbine Shaft for Cracks
NOTE
This is an alternative to Step.Refer to Figure.
NOTE
Refer to TASK 72-50-41-200-003-A00 and TASK 72-50-41-200-003-B00 for selection of the applicable repair TASK.Refer to Repair VRS1494 TASK 72-50-41-300-012 (REPAIR-012) or Repair VRS1495 TASK 72-50-41-300-011 (REPAIR-011).
Apply the corrosion resistance coating to the damaged area in location 6 only.
SUBTASK 72-50-41-380-051 Apply the Corrosion Resistance Coating to the LP Turbine Shaft
Figure: Repair Details and Dimensions
Repair Details and Dimensions

Figure: Repair Details and Dimensions
Repair Details and Dimensions

Figure: Repair Details and Dimensions
Repair Details and Dimensions

Figure: Repair Details and Dimensions
Repair Details and Dimensions

Figure: Repair Details and Dimensions
Repair Details and Dimensions

