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 72-41-31-300-007 HPC Stage 4 Rotor Path Segment - Blend Repair, Repair-007 (VRS6208)
Material of component
PART IDENT | SYMBOL | MATERIAL |
|---|---|---|
HP compressor stage 4 rotor path ring segment (Assembly A) | LAH | Aluminum alloy |
HP compressor stage 4 rotor path ring segment (Assembly B) | EAK or EBL | Jethete M152 |
General
This Repair must only be when the instructions to do so is given in TASK 72-41-31-200-000 (INSPECTION-000).
The practices and processes referred to in the procedure by the TASK/SUBTASK number are in SPM.
Price and availability - Refer to International Aero Engines
Related repair - none
NOTE
More equipment and materials necessary to do this repair are in SPM TASKS given below.
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 | |||
| Standard workshop equipment | LOCAL | |||
| Workshop inspection equipment | LOCAL | Workshop inspection 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 | ||
| CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) | LOCAL | CoMat 06-022 |
Spares
NONESafety Requirements
NONEProcedure
Use CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY), with penetrant crack test equipment.
Cracks are not permitted.
Refer to SPM TASK 70-23-05-230-501.
Do a local penetrant crack test on the area(s) to be repaired.
SUBTASK 72-41-31-230-098 Do a Crack Test
Refer to Figure.
The maximum depth to remove the damage must not be more than 0.005 in. (0.13 mm).
The repaired area(s) is to be 50 times the depth.
Use standard workshop equipment,
Refer to SPM TASK 70-35-03-300-501.
Remove small area(s) of damage as necessary.
Remove sharp corners.
Use standard workshop equipment, with CoMat 05-110 EMERY POLISHING PAPER and/or CoMat 05-111 EMERY POLISHING PAPER.
Refer to SPM TASK 70-35-03-300-501.
Blend the area(s) of repair.
Use standard workshop equipment.
Polish the repaired area(s) to give a surface finish the same as the adjacent material.
Refer to SPM TASK 70-35-03-300-501.
Polish the area(s) of repair.
SUBTASK 72-41-31-350-054 Remove the Damage
Use CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY), with penetrant crack test equipment.
Cracks are not permitted.
Refer to SPM TASK 70-23-05-230-501.
Do a local penetrant crack test on the repaired area(s).
SUBTASK 72-41-31-230-099 Do a Crack Test
Use chemical cleaning equipment.
Refer to SPM TASK 70-11-26-300-503.
Chemically clean the repaired area(s) to remove the fluorescent penetrant.
SUBTASK 72-41-31-110-099 Chemically Clean
Refer to Figure.
SUBTASK 72-41-31-220-123 Examine the Repair
Figure: An example of an area to be repaired
An example of an area to be repaired
