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 72-42-50-300-006 HPC Rear Heatshield - Blend Repair, Repair-006 (VRS6237)
Material of component
RR | ||
|---|---|---|
DESCRIPTION SYMBOL MATERIAL | ||
HP compressor heatshield | QAL or | Nickel chrome alloy |
QAW | ||
General
This repair must only be done when the instruction to do so is given in TASK 72-42-50 Inspection/Check.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
Price and availability - 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 | 0AM53 | CoMat 05-110 | ||
| CoMat 05-111 EMERY POLISHING PAPER | 06565 | CoMat 05-111 |
Spares
NONESafety Requirements
NONEProcedure
Refer to the SPM TASK 70-23-01-230-501. No cracks are permitted.
Do a penetrant crack test.
SUBTASK 72-42-50-230-054-001 Do a Crack Test
Refer to the SPM TASK 70-23-03-230-501. No cracks are permitted.
Do a penetrant crack test.
SUBTASK 72-42-50-230-054-002 Do a Crack Test
Refer to: Figure
Refer to the SPM TASK 70-35-03-300-501.
The maximum depth to remove the damage must not be more than 0.005 in. (0.127 mm).
The diameter of area removed is to be 50 times the depth of the damage.
Remove the damage.
Refer to the SPM TASK 70-35-03-300-501.
Use CoMat 05-106 ABRASIVE STONE and CoMat 05-111 EMERY POLISHING PAPER. Remove sharp corners.
Blend the area of repair.
Refer to the SPM TASK 70-35-03-300-501.
Use CoMat 05-110 EMERY POLISHING PAPER and CoMat 05-111 EMERY POLISHING PAPER. Polish to remove the dressing marks and to give a surface finish the same as the adjacent material.
Polish the area of repair.
SUBTASK 72-42-50-350-053 Remove the Damage
Refer to: Figure
SUBTASK 72-42-50-220-059 Examine the Repair
Refer to the SPM TASK 70-23-01-230-501. No cracks are permitted.
Do a penetrant crack test.
SUBTASK 72-42-50-230-055-001 Do a Crack Test
Refer to the SPM TASK 70-23-03-230-501. No cracks are permitted.
Do a penetrant crack test.
SUBTASK 72-42-50-230-055-002 Do a Crack Test
Figure: An example of an area to be repaired
An example of an area to be repaired
