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 72-41-21-300-011 HPC Stage 9 Case - Blend Repair On The Stage 9 Rotor Path Ring And Stage 9 Case, Repair-011 (VRS6096)
Material of component
PART IDENT | SYMBOL | MATERIAL |
|---|---|---|
HP Compressor Stage 9 Rotor Path Ring and Stage 9 Integrated Rotor Path Ring Case | QTX or QRK | Nickel, Cobalt Steel |
General
This repair must only be done when the instruction to do so is given in 72-41-21 Inspection/Check.
Fig/item numbers in parentheses in the procedure agree with those used in the EIPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the EIPC.
The practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.
Price and availability
Refer to International Aero Engines
Related repaires - none
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Chemical cleaning equipment | LOCAL | Chemical cleaning equipment | ||
| Penetrant Crack Test Equipment | LOCAL | Penetrant crack test equipment | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment | ||
| Vibrating marking pencil | LOCAL | Vibrating marking pencil |
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 | ||
| CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY) | 37676 | CoMat 06-018 | ||
| CoMat 05-074 ALUMINIUM OXIDE ABRASIVE PAPER | 06565 | CoMat 05-074 |
Spares
NONESafety Requirements
NONEProcedure
Refer to the SPM TASK 70-23-03-230-501.
No cracks are permitted.
Do a penetrant crack test.
SUBATSK 72-41-21-230-074-001 Do a Crack Test
Refer to the SPM TASK 70-23-03-230-501.
Do a penetrant crack test.
SUBTASK 72-41-21-230-074-002 Do a Crack Test
Refer to Figure.
Refer to the SPM TASK 70-35-03-300-501.
The maximum depth of the repaired area(s) is to be 0.005 in. (0.13 mm). The diameter of the repaired area is to be 50 times the depth.
Remove minimum quantity of material that is necessary to do this repair.
Remove small area(s) of damage as necessary.
Refer to the SPM TASK 70-35-03-300-501.
Make sure all damage marks are 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 scratches and to give a surface finish the same as the adjacent material.
Polish repaired area(s).
SUBTASK 72-41-21-350-053 Remove the Damaged Area(s)
Refer to the SPM TASK 70-23-05-230-501.
Use CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY), with Penetrant Crack Test Equipment.
Cracks are not permitted.
Do a local penetrant crack test of the repaired area(s).
SUBTASK 72-41-21-230-225 Do a Crack Test
Refer to Figure.
Make sure the surface finish is the same as the adjacent material.
The maximum amount of material removal permitted is 0.005 in (0.13mm).
Use standard Workshop inspection equipment.
Visually examine and measure the dimensions of the repaired area(s).
SUBTASK 72-41-21-220-191 Examine the Repair to the HPC Stage 9 Rotor Path Ring
Refer to the SPM TASK 70-23-01-230-501.
No cracks are permitted.
Do a penetrant crack test.
SUBTASK 72-41-21-230-075-001 Do a Crack Test
Figure: An example of an area to be repaired
An example of an area to be repaired

