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 72-32-71-300-020 LPC Bleed Valve Lower Power Arm - Repair Surface Damage By Blending, Repair-020 (VRS1744)
Material of component
RR | ||
|---|---|---|
DESCRIPTION | SYMBOL | MATERIAL |
Lower power arm | Cast corrosion and heat | |
resistant steel (17-4PH) |
General
The practices and processes referred to in the procedure by the TASK number are in the SPM.
Price and availability - none
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment | ||
| Portablegrinding equipment | LOCAL | Portable grinding equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-001 ADHESIVE TAPE (MASKING) | LOCAL | CoMat 02-001 | ||
| CoMat 05-019 WATERPROOF SILICON CARBIDE | LOCAL | CoMat 05-019 | ||
| CoMat 05-020 WATERPROOF SILICON CARBIDE | LOCAL | CoMat 05-020 | ||
| CoMat 05-021 WATERPROOF SILICON CARBIDE | 44197 | CoMat 05-021 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
The surface finish of the repair must be the same as the adjacent area.
Refer to the SPM TASK 70-35-03-300-501.
Use Portablegrinding equipment, abrasive stone or CoMat 05-019 WATERPROOF SILICON CARBIDE, CoMat 05-020 WATERPROOF SILICON CARBIDE and CoMat 05-021 WATERPROOF SILICON CARBIDE and/or fine file.
Scallop, make smooth and/or hand polish to remove all nicks, galls, scores and/or scratches.
SUBTASK 72-32-71-350-068 Remove the Damage from the Lower Power Arm
Use a 10X magnifying glass.
Refer to TASK 72-32-71-200-000 (INSPECTION-000).
Visually examine the repaired area for nicks, galls, scores and/or scratches.
Visually examine the repaired area.
SUBTASK 72-32-71-220-130 Examine the Lower Power Arm
Refer to TASK 72-32-71-200-000 (INSPECTION-000).
Refer to the SPM TASK 70-23-05-230-501.
Make sure that there are no cracks in the repaired area.
Fluorescent penetrant examine the repaired area.
SUBTASK 72-32-71-230-074 Examine the Lower Power Arm
Figure: Lower power arm - Repair limit
Lower power arm - Repair limit
