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 72-42-11-300-032 Diffuser Case - Plasma Spray The Front Outer Flange Face, Repair-032 (VRS3752)
Effectivity
FIG/ITEM PART NO. | |
|---|---|
01-010 | 2A0051 |
01-010 | 2A2081-01 |
01-010 | 2A2581-01 |
01-010 | 2A2883-01 |
01-010 | 2A2885-01 |
01-010 | 2A2889-01 |
01-010 | 2A2891-01 |
01-010 | 2A2896-01 |
01-010 | 2A2897-01 |
01-010 | 2A3132 |
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
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Machining equipment | LOCAL | Machining equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-080 METAL SPRAYING POWDER,Co BASE ALLOY | IE426 | CoMat 03-080 | ||
| CoMat 03-096 PLASMA SPRAY POWDER | LOCAL | CoMat 03-096 | ||
| CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY) | 37676 | CoMat 06-018 |
Spares
NONESafety Requirements
NONEProcedure
Refer to the SPM TASK 70-11-03-300-503.
Clean the case after you machine or grind.
SUBTASK 72-42-11-110-069 Clean the Diffuser Case Assembly
Refer to the SPM TASK 70-23-03-230-501. Use CoMat 06-018 FLUORESCENT PENETRANT (POST-EMULSIFIED HIGH SENSITIVITY).
If you removed coating and damage by grinding, do a fluorescent penetrant inspection of the front face.
SUBTASK 72-42-11-230-065 Do a Fluorescent Penetrant Inspection of the Front Outer Flange Face
Refer to Figure.
SUBTASK 72-42-11-220-098 Examine the Front Outer Flange Face
Do the procedure in the SPM TASK 70-38-05-380-501.
No grit blast or plasma spray is permitted in the holes.
Mask all areas that are not to be plasma spray coated.
SUBTASK 72-42-11-380-059 Mask all Areas that are not to be Plasma Spray Coated
Do the procedure in the SPM TASK 70-34-18-380-501.
Prepare the flange for plasma spray.
SUBTASK 72-42-11-380-060 Prepare the Front Face of the Front Outer Flange for Plasma Spray
Do the procedure in SPM TASK 70-34-03-340-501.
Apply sufficient thickness of coating to get the final machining dimensions given in Figure.
Final coating thickness must be 0.003 in. (0.08 mm) minimum.
Apply plasma spray to the front face of the front outer flange.
SUBTASK 72-42-11-340-059 Apply Plasma Spray to the Front Face of the Front Outer Flange
Finish machine the repaired area to the limits given in Figure.
SUBTASK 72-42-11-320-078 Machine the Front Face of the Front Outer Flange
NOTE
All dimensions apply when Surfaces DJ and DE are flat in 0.005 in. (0.13 mm) and Diameters DH and DF maintain a clearance envelope of 25.210 in. (640.33 mm) and 28.226 in. (717.96 mm) in a freee or held condition. Contact is permitted only on Surfaces DJ, DX, DY and DE and Diameters DH and DF. In a free condition, Surfaces DJ and DE must be flat in 0.010 in. (0.25 mm) and Diameters DH and DF are between 25.174 and 25.239 in. (639.42 and 641.07 mm) and 28.197 and 28.263 in. (716.20 and 717.88 mm) respectively.Refer to the SPM TASK 70-11-03-300-503.
Clean the case after machining.
SUBTASK 72-42-11-110-070 Clean the Diffuser Case
Do the procedure in the SPM TASK 70-34-03-340-501-002.
Do a visual and dimensional inspection of the repair area.
SUBTASK 72-42-11-220-099 Examine the Front Face of the Front Outer Flange
Refer to Figure.
Refer to Figure. Mark the part by the SPM TASK 70-09-00-400-501.
NOTE
If the VRS number is marked on the part, do not mark the repair number again.Use the vibration peen method.
Mark the repair number VRS3752 on the diffuser case adjacent to the part number.
SUBTASK 72-42-11-350-104 Identify the Repair
Figure: Repair Details and Dimensions
Sheet 1

Figure: Repair Details and Dimensions
Sheet 2

