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 72-50-41-300-012 LPT Shaft - Repair The Corrosion Resistant Coating, Repair-012 (VRS1494)
Effectivity
FIG/ITEM PART NO. | |
|---|---|
01-200 | 5A0149 |
01-200 | 5A0864 |
01-200 | 5A6147 |
01-200 | 5A0892 |
01-200 | 5A1732 |
01-200 | 5A1762 |
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
NONEConsumables, 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 07-037 CORROSION RESISTANT TOUCH-UP COATING | LOCAL | CoMat 07-037 | ||
| CoMat 07-038 AIR DRYING ENAMEL | K3504 | CoMat 07-038 |
Spares
NONESafety Requirements
NONEProcedure
Refer to: Figure
Use a clean lint-free cloth which is moist with degreasing fluid.
Refer to the SPM TASK 70-11-26-300-503.
Remove the grease from the area of damaged coating.
SUBTASK 72-50-41-110-056 Remove the Grease from the LP Turbine Shaft
Refer to: Figure
Refer to the SPM TASK 70-38-21-380-501.
Rub down the damaged area with waterproof abrasive paper. Remove the damage smoothly in to the adjacent area.
SUBTASK 72-50-41-350-056 Prepare Surface Protection to the LP Turbine Shaft
Refer to the SPM TASK 70-11-26-300-503.
Use a clean lint-free cloth which is moist with degreasing fluid and clean the damaged area.
Remove the grease from the damaged area.
SUBTASK 72-50-41-110-057 Remove the Grease from the LP Turbine Shaft
Refer to: Figure
Use CoMat 07-038 AIR DRYING ENAMEL or CoMat 07-037 CORROSION RESISTANT TOUCH-UP COATING and apply one coat with a brush.
Refer to the SPM TASK 70-38-21-380-501.
Apply the corrosion resistant coating to the damaged area.
Let the painted area become dry in air for 30 minutes before handling.
Coating will air dry in 24 to 48 hours.
Refer to the SPM TASK 70-38-21-380-501.
Let the LP turbine shaft become dry in air for 30 minutes before handling.
Refer to the SPM TASK 70-38-21-380-501.
Examine the coating surface.
SUBTASK 72-50-41-380-052 Apply the Corrosion Resistance Coating to the LP Turbine Shaft
Figure: LP turbine shaft - corrosion resistance touch-up coating repair
LP turbine shaft - corrosion resistance touch-up coating repair
