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 72-32-56-300-003 Front Bearing Compartment Front Air Seal Holder - Repair By Plasma Spraying The Snap Diameter, Repair-003 (VRS1309)
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.
This Repair scheme gives the procedure for plasma spraying the snap diameter of the front air seal.
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Lathe | LOCAL | Lathe | ||
| Grinding machine | LOCAL | Grinding machine | ||
| Abrasive blasting facility | LOCAL | Abrasive blasting facility | ||
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-051 HIGH TEMPERATURE GLASS CLOTH TAPE | 0AM53 | CoMat 02-051 | ||
| CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5) | IE200 | CoMat 03-038 | ||
| CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE | LOCAL | CoMat 05-001 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
SUBTASK 72-32-56-325-051 Machine the Worn Snap Diameter
Refer to the SPM TASK 70-21-01-220-501.
Do a visual inspection for the machined area.
SUBTASK 72-32-56-220-057 Inspect the Front Air Seal
Cracks are not permitted.
Refer to the SPM TASK 70-23-01-230-501.
Do a crack test.
SUBTASK 72-32-56-230-053 Examine the Front Air Seal for Cracks
Refer to the SPM TASK 70-12-02-120-501.
Abrasive blast the front air seal surface to be plasma sprayed.
SUBTASK 72-32-56-120-051 Abrasive Blast the Front Air Seal
Refer to Figure.
Refer to the SPM TASK 70-34-03-340-501.
Apply plasma spray. Maximum diameter of 12.770in. (324.37 mm) is required after plasma spray.
SUBTASK 72-32-56-340-051 Apply Plasma Spray on the Snap Diameter
Refer to Figure.
SUBTASK 72-32-56-324-052 Grind the Snap Diameter
Refer to TASK 72-32-56-200-000.
Do a visual inspection.
SUBTASK 72-32-56-220-058 Examine the Front Air Seal
Figure: Front air seal
Front air seal

