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 79-21-43-300-004 Fuel Cooled Oil Cooler (FCOC) - Related Parts - Blend Repair The Bar, Repair-004 (VRS1707)
General
Price and availability - Refer to IAE for any of the following:
Tools
Engine parts
Repair of spares
The practices and processes referred to in the procedure by the TASK number are in the SPM.
To identify the consumable materials refer to the PCI.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Hand Held Pneumatic Grinder | LOCAL | Hand Held Pneumatic Grinder | ||
| Files, rotating (Silicon carbide) | LOCAL | Files, rotating (Silicon carbide) | ||
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| 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.
Dress until all damage is removed.
Dress to remove damage.
Maximum blend limit is 0.005 in. (0.12 mm) in depth.
Refer to SPM TASK 70-35-03-300-501.
Use CoMat 05-020 WATERPROOF SILICON CARBIDE abrasive paper and CoMat 05-021 WATERPROOF SILICON CARBIDE.
Blend dressed area and polish out scores
SUBTASK 79-21-43-350-054 Dress to Remove Damage
CAUTION
TITANIUM COMPONENTSSILICON CARBIDE TYPE WHEELS, STONES AND ABRASIVE PAPERS ARE TO BE USED FOR THIS REPAIR.ALUMINUM OXIDE TYPES MUST NOT BE USED.THE MATERIAL WILL OXIDIZE AND CRACK IF MECHANICAL CUTTERS ARE USED HEAVILY. THIS HAS OCCURRED IF THE COMPONENT SHOWS DARK STRAW TO BLUE DISCOLORATION. IF AT ANY TIME THIS COLORATION OCCURS THE COMPONENTS MUST BE REJECTED.Refer to Inspection-006 TASK 79-21-43-200-406.
Visually examine the repaired area for nicks, scratches and/or damage.
Use 10X magnifying glass.
Do a visual inspection of the repaired area.
SUBTASK 79-21-43-220-064 Examine the Bar
Refer to SPM TASK 70-23-01-230-501.
Make sure there are no cracks in the repaired area.
Penetrant crack test dressed area
SUBTASK 79-21-43-230-057 Examine the Bar for Cracks
Figure: Torsion Bar
Torsion Bar
