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 72-41-21-300-013 HPC Stage 9 Case - Blend Repair, Repair-013 (VRS6097)
Material of component
DESCRIPTION | SYMBOL | MATERIAL |
|---|---|---|
HP Compressor Stage 9 Case | QRK or QTX | Nickel, Cobalt steel |
General
This repair must only be done when the instruction to do so is given in the relevant inspection procedures (identified by the applicable part number) located in section 72-41-21.
The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.
Price and availability - Refer to International Aero Engines
Related repairs - none
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Workshop inspection equipment | LOCAL | Workshop inspection equipment | ||
| Penetrant Crack Test Equipment | LOCAL | Penetrant crack test equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-106 ABRASIVE STONE | K6835 | CoMat 05-106 | ||
| CoMat 05-110 EMERY POLISHING PAPER | LOCAL | CoMat 05-110 | ||
| CoMat 05-111 EMERY POLISHING PAPER | 06565 | CoMat 05-111 |
Spares
NONESafety Requirements
NONEProcedure
Refer to TASK 72-41-21-100-000 (CLEANING-000).
Chemically clean.
SUBTASK 72-41-21-110-138 Clean the Stage 9 Case
Refer to TASK 72-41-21-200-000 (INSPECTION/CHECK-000).
Do a penetrant crack test.
SUBTASK 72-41-21-230-086 Do a Crack Test
Refer to Figure.
Refer to SPM TASK 70-35-03-300-501.
The diameter of the repaired areas is to be 50 times the depth.
The maximum depth of the repaired areas is to be 0.005 in. (0.13 mm).
Remove the damaged material, as necessary. Do not remove more than is necessary.
Refer to SPM TASK 70-35-03-300-501.
Make sure all damage marks are completely removed and the area(s) made smooth into the adjacent material.
Make smooth the repaired area(s).
Refer to SPM TASK 70-35-03-300-501.
Polish the repaired area(s) to remove the scratches and to give a smooth surface finish.
Polish the repaired area(s).
SUBTASK 72-41-21-350-073 Remove the Damaged Area(s)
Refer to Figure.
SUBTASK 72-41-21-220-220 Examine the Repaired Area(s)
Refer to SPM TASK 70-23-05-230-501.
Cracks are not permitted.
Do a local penetrant crack test of the repaired area(s).
SUBTASK 72-41-21-230-087 Do a Crack Test
Refer to SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
Use Vibro-engraving equipment.
Make a mark VRS6097 adjacent to the part number.
SUBTASK 72-41-21-350-199 Identify the Repair
Figure: Repair Details and Dimensions
Repair Details and Dimensions

