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 72-50-53-300-045 No. 5 Bearing Pressure Oil Tube - Repair The Plasma Coat On Ferrule Outer Diameter, Repair-045 (VRS3756)
Effectivity
FIG/ITEM | PART NO. |
20-176 | 2A2168-01 |
20-176 | 2A3091-01 |
DESCRIPTION | SYMBOL | MATERIAL |
Ferrule of No.5 Bearing Pressure Tube Assembly | AMS 5646 Stainless steel |
General
Price and availability - refer to IAE.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-066 METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | DK026 | CoMat 03-066 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Refer to SPM TASK 70-33-78-300-503.
Remove the coat from ferrule outer diameter.
Refer to SPM TASK 70-34-03-340-501.
Remove the minimum amount of parent material necessary to accomplish the repair.
Grind to remove the damage or wear and all of the coat.
SUBTASK 72-50-53-350-203 Remove the Damage or Wear and all the Coat from Ferrule Outer Diameter
Refer to Figure.
Refer to SPM TASK 70-11-03-300-503.
Clean the part.
Refer to SPM TASK 70-23-01-230-501 or SPM TASK 70-23-02-230-501.
Do a fluorescent penetrant inspection of the part.
Do a dimensional inspection of the repair area.
Refer to SPM TASK 70-34-03-340-501.
Mask areas which are not to be coated.
Grit blast the repair area. Grit blast out of repair area is not permitted.
Prepare the part for plasma coat.
SUBTASK 72-50-53-350-204 Prepare the Ferrule for Coating
Refer to Figure.
Refer to SPM TASK 70-34-03-340-501.
Coat to sufficient thickness to permit finish grinding.
Coat out of repair area shown is not permitted. Use masks.
Plasma coat the repair area.
Refer to SPM TASK 70-11-26-300-503.
After part has cooled, remove the masking material.
SUBTASK 72-50-53-340-062 Apply Plasma Coat to the Ferrule Outer Diameter
Refer to Figure.
Refer to TASK 70-34-03-340-501.
Final coating thickness must be 0.003 to 0.005 in. (0.008 to 0.013 mm).
Finish grind the repaired area.
SUBTASK 72-50-53-320-169 Grind the Coated Area
Refer to Figure.
Refer to SPM TASK 70-11-03-300-503.
Clean the part.
SUBTASK 72-50-53-160-053 Clean the Ferrule
Refer to Figure.
Refer to SPM TASK 70-34-03-340-501.
Do a visual inspection of the repaired coat.
Do a dimensional inspection of the repaired coat.
SUBTASK 72-50-53-220-254 Inspect the Repaired Area
Figure: Repair Details and Dimensions
Repair Details and Dimensions
