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 72-41-32-300-010 HPC Stage 6 Variable Stator Vane - Restore The Surface Finish, Repair-010 (VRS6079)
Effectivity
FIG/ITEM | PART NO. | |
05-500 | 6A3699 | Assembly A |
05-500 | 6A3763 | Assembly A |
05-600 | 6A3752 | Assembly B |
05-600 | 6A3764 | Assembly B |
Material of component
PART IDENT | SYMBOL | MATERIAL |
|---|---|---|
HP Compressor Stage 6 VSV | EAX | Corrosion resistant steel |
or | ||
QMP | Nickel chromium iron alloy |
General
This Repair must only be done when the instruction is given in 72-41-32 Inspection/Check.
This Repair gives the procedure to vibro polish the HP compressor stage 6 variable stator vanes (VSV).
The VSV must have been repaired, where necessary, and inspected before vibro polishing.
The VSV can only have this repair, completed on it three times.
The practices and processes referred to in the procedure by the TASK number are in the SPM.
Price and availability
Refer to International Aero Engines
Related repairs - none
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Vibrating marking pencil | LOCAL | Vibrating marking pencil | ||
| Degreasing equipment | LOCAL | Degreasing equipment | ||
| Vibro-polishing equipment | LOCAL | Vibro-polishing equipment | ||
| Surface finish measuring equipment | LOCAL | Surface finish measuring equipment | ||
| IAE 3R18563 Mask | 0AM53 | IAE 3R18563 | 1 | |
| IAE 3R18564 Mask | 0AM53 | IAE 3R18564 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF | LOCAL | CoMat 02-003 | ||
| CoMat 05-092 SUPERFINISHING MEDIA | 0AM53 | CoMat 05-092 | ||
| CoMat 05-093 SUPERFINISHING MEDIA, CERAMIC, ANGLE CUT TRIANGLE | IAE56 | CoMat 05-093 | ||
| CoMat 05-094 SUPERFINISHING MEDIA, CERAMIC TRIANGLE | 0AM53 | CoMat 05-094 | ||
| CoMat 05-095 LIQUID COMPOUND (VIBROPOLISHING FINISHING FLUID) | IE230 | CoMat 05-095 | ||
| CoMat 05-096 LIQUID COMPOUND | 0AM53 | CoMat 05-096 | ||
| CoMat 05-098 SUPERFINISHING MEDIA, CERAMIC, ANGLE CUT TRIANGLE | 0AM53 | CoMat 05-098 | ||
| CoMat 05-099 SUPERFINISHING MEDIA | 0AM53 | CoMat 05-099 | ||
| CoMat 05-100 SUPERFINISHING MEDIA, CERAMIC, TRIANGLE | 0AM53 | CoMat 05-100 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
SUBTASK 72-41-32-220-110 Make sure that the Stage 6 VSV can be Vibro Polished
Refer to the SPM TASK 70-11-01-300-503.
Remove the grease.
SUBTASK 72-41-32-110-061 Clean the Stage 6 VSV
Use IAE 3R18563 Mask, 1 off, and CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF.
Apply the mask to the minimum area of the VSV air washed surface.
Apply mask to the Stage 6 VSV spindles and tip.
SUBTASK 72-41-32-350-064-A00 Apply the Mask to the Stage 6 VSV, Assembly A
Use IAE 3R18564 Mask, 1 off, and CoMat 02-003 ADHESIVE TAPE BLACK WATERPROOF.
Apply the mask to the minimum area of the VSV air washed surface.
Apply mask to the Stage 6 VSV spindles and tip.
SUBTASK 72-42-32-350-064-B00 Apply the Mask to the Stage 6 VSV, Assembly B
Refer to Figure.
Refer to the SPM TASK 70-38-25-380-501.
Do not have more than 40 VSV for one cubic foot of the superpolishing media.
Use one of the superpolishing media and one of the liquid compounds given below:
NOTE
The maximum size of the superfinishing media given above is 10 mm X 10 mm..NOTE
The maximum size of the superfinishing media given above is 6 mm X 10 mm...
Vibro-polish the VSV airfoil and the adjacent annulus surfaces. Prepare the component for inspection.
SUBTASK 72-41-32-380-055 Vibro-Polish the Stage 6 VSV Airfoil

CAUTION
THIS VSV IS A GLASS BEAD PEENED COMPONENT. DO NOT ABRASIVE BLAST THE VSV.Refer to Figure.
Refer to the SPM TASK 70-38-25-380-501.
Examine the surface finish of the VSV.
SUBTASK 72-41-32-220-111 Examine the Stage 6 VSV Surface Finish
Refer to Figure.
Refer to the SPM TASK 70-09-00-400-501 SUBTASK 70-09-00-400-501.
If this is the first time this repair has been completed on the VSV vibro engrave a 1 in a triangle adjacent to the part number.
If this is the second time this repair has been completed on the VSV vibro engrave /1 adjacent to the triangle.
If this is the third time this repair has been completed on the VSV vibro engrave /2 adjacent to the triangle.
Identify the repair.
SUBTASK 72-41-32-350-065 Identify the Repair
Figure: Repair details and dimensions
Repair details and dimensions

