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 72-50-24-300-001 LPT Inner Diffuser Duct Segment - Plasma Spray The Rear Locating Diameter, Repair-001 (VRS4003)
General
Price and availability - none
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Vertical turning lathe | LOCAL | Vertical turning lathe | ||
| Plasma spray equipment | LOCAL | Plasma spray equipment | ||
| IAE 3M14280 Turning fixture | 0AM53 | IAE 3M14280 | 1 |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-047 TAPE, HEAT REFLECTIVE | 52152 | CoMat 02-047 | ||
| CoMat 02-050 HIGH TEMPERATURE GLASS CLOTH TAPE | 76381 | CoMat 02-050 | ||
| CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) | 00741 | CoMat 03-089 | ||
| CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5) | 0AM53 | CoMat 03-090 | ||
| CoMat 05-047 DELETED | 0AM53 | CoMat 05-047 | ||
| CoMat 05-046 ALUMINUM OXIDE GRIT | 62596 | CoMat 05-046 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Remove the old coating and damage fully.
Keep material removal to the minimum to allow subsequent repairs.
Use vertical turning lathe and IAE 3M14280 Turning fixture 1 off.
Machine the radial dimension D1.
SUBTASK 72-50-24-325-084 Machine Worn Radial Dimension D1
NOTE
If the surface were plasma spray repaired before, remove the old coating fully.Refer to Figure.
Dimensionally examine the dimensions D1.
SUBTASK 72-50-24-220-179 Examine the Machined Dimensions
Refer to the SPM TASK 70-11-01-300-503.
Vapor degrease.
SUBTASK 72-50-24-110-140 Clean the Locating Diameter
Mask the area A3.
The surface texture must be 120 to 200 microinch (3.0 to 5.0 micrometzer Ra).
Blasting in area A2 is permitted.
Refer to Figure and to the SPM TASK 70-34-03-340-501.
Grit blast the area A1.
SUBTASK 72-50-24-340-093 Prepare the Surfaces for Plasma Spray Procedure
Overspray in area A2 is permitted, refer to Figure.
Make sure that there is sufficient material to do last machining.
Refer to the SPM TASK 70-34-03-340-501.
Plasma spray area A1.
SUBTASK 72-50-24-340-094 Plasma Spray the Prepared Surfaces
Refer to the SPM TASK 70-11-01-300-503.
Remove all masking.
SUBTASK 72-50-24-340-095 Remove the Protection from the Masked Areas
Refer to the SPM TASK 70-11-01-300-503.
Vapor degrease.
SUBTASK 72-50-24-110-141 Clean the Inner Duct Segment
For dimensions refer to Figure and the SPM TASK 70-34-03-340-501.
Use vertical turning lathe and IAE 3M14280 Turning fixture 1 off.
Machine the coated area and chamfer.
SUBTASK 72-50-24-320-060 Machine the Coated Areas
Refer to the SPM TASK 70-11-01-300-503.
Vapor degrease.
SUBTASK 72-50-24-110-142 Clean the Inner Duct Segment
Refer to Figure.
Dimensionally examine.
Refer to the SPM TASK 70-34-03-340-501.
Visually examine the coating.
SUBTASK 72-50-24-220-180 Do the Post Repair Inspection
Refer to the SPM TASK 70-09-00-400-501.
Vibropeen VRS4003 and the applicable beehive symbol adjacent to the part number.
SUBTASK 72-50-24-320-061 Make a Mark to Identify the Repair
Figure: Plasma spray the rear locating diameter, inner duct segment
Plasma spray the rear locating diameter, inner duct segment

Figure: Plasma spray the rear locating diameter, inner duct segment
Plasma spray the rear locating diameter, inner duct segment

