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 72-41-21-300-025 HPC Front Support Cone Stiffening Ring - Repair Surface Damage By Dressing, Repair-025 (VRS6090)
Material of component
RR | ||
|---|---|---|
DESCRIPTION | SYMBOL | MATERIAL |
HP compressor stiffening ring support cone | QRK or QTX | Nickel cobalt steel alloy |
General
This Repair must only be done when the instruction to do so is given in 72-41-21 Inspection/Check.
DELETED
DELETED
The practices and processes referred to in the procedure by the TASK number are in the SPM.
Price and availability
Refer to IAE
Related repairs
HP Compressor Front Support Cone Stiffening Ring - Replace Surface Protection, refer to TASK 72-41-21-300-026 (VRS6160).
NOTE
Equivalent materials or equipment can be used.
More equipment and materials necessary to do this Repair are given in the SPM TASKS given below.
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 | 0AM53 | 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.
Chemically clean.
SUBTASK 72-41-21-110-129 Clean the Stiffening Ring Support Cone
Refer to TASK 72-41-21-200-000.
Do a penetrant crack test.
SUBTASK 72-41-21-230-106 Do a Crack Test
Refer to Figure.
Refer to the 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 0.005in. (0.13 mm).
Remove the damaged material, as necessary. Do not remove more than is necessary.
Refer to the 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 the repaired area(s) smooth.
Refer to the 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 72-41-21-350-097 Remove the Damaged Area(s)
Refer to Figure.
SUBTASK 72-41-21-220-260 Examine the Repaired Area(s)
Refer to VRS6160, TASK 72-41-21-300-026.
Apply the surface protection.
SUBTASK 72-41-21-380-072 Apply the Surface Protection
Figure: Repair details and dimensions
Repair details and dimensions
Figure: Apply the surface protection
Apply the surface protection
