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 79-21-51-300-002 Air Cooled Oil Cooler (ACOC) Modulating Valve - Related Parts - Repair The Link Assembly By Blending, Repair-002 (VRS1691)
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) |
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 the CoMat 05-020 WATERPROOF SILICON CARBIDE abrasive paper and CoMat 05-021 WATERPROOF SILICON CARBIDE.
Blend dressed area and polish out scores
SUBTASK 79-21-51-350-052 Dress to Remove Damage
CAUTION
TITANIUM COMPONENTSSSILICON 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 COMPONENT MUST BE REJECTED.Visually examine the repaired area for nicks, scratches and/or damage.
Do a visual inspection on the repaired area
SUBTASK 79-21-51-220-056 Examine the Link Assembly
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 79-21-51-230-054 Examine the Link Assembly for Cracks
Figure: Link Assembly Repair Areas
Link Assembly Repair Areas
