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 72-41-12-300-012 HPC Stage 9 - 12 Drum Disk - Repair The Front Outside Diameter Coating, Repair-012 (VRS3444)
Effectivity
FIG/ITEM | PART NO. |
|---|---|
01-600 | 2A2100-01 |
01-600 | 2A2200-01 |
01-600 | 2A2600-01 |
01-600 | 2A3200-01 |
01-600 | 2A3300-01 |
01-600 | 2A3400-01 |
01-600 | 2A3500-01 |
General
The practices and processes referred to in the procedure by TASK number are in the SPM.
Price and availability - refer to IAE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Portablegrinding equipment | LOCAL | Portable grinding equipment | ||
| Magnifying glass, 7x | LOCAL | Magnifying glass, 7x |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-097 LINT-FREE GLOVES | LOCAL | CoMat 02-097 | ||
| CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) | 00741 | CoMat 03-089 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
SUBTASK 72-41-12-320-052 Machine the Front Outside Diameter
Refer to Figure.
Refer to the SPM TASK 70-23-04-230-501.
No cracks are permitted.
Do a fluorescent penetrant inspection on the front outside diameter.
SUBTASK 72-41-12-230-057 Do a Crack Test on the Front Outside Diameter
Refer to Figure.
Refer to the SPM TASK 70-38-13-380-501.
SUBTASK 72-41-12-380-052 Shot Peen the Front Outside Diameter
Refer to the SPM TASK 70-34-18-380-501.
Prepare the surface for coating.
SUBTASK 72-41-12-380-065 Prepare the Surface of the Front Outside Diameter
Refer to Figure.
The maximum thickness of the plasma spray must be 0.015 in. (0.38 mm).
Refer to the SPM TASK 70-34-03-340-501.
No overspray is permitted.
Plasma spray the front outside diameter.
SUBTASK 72-41-12-340-051 Plasma Spray the Front Outside Diameter
Refer to Figure.
SUBTASK 72-41-12-220-071 Examine the Repair
Refer to Figure.
Make a permanent mark by the procedure given in the SPM TASK 70-09-00-400-501.
Use the deep electrolytic etch method.
See the figure for the electrical contact area. No burning, pitting or selective attack from the electrical contact is permitted.
Make a mark VRS3444 adjacent to the part number.
SUBTASK 72-41-12-350-055 Identify the Repair
Figure: Repair Details and Dimensions
Sheet 1

Figure: Repair Details and Dimensions
Sheet 2

Figure: Repair Details and Dimensions
Sheet 3

