DMC:V2500-A0-72-44-1002-01A-609A-CIssue No:001.00Issue Date:2013-11-01
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 72-44-10-300-021 HPT Stage 1 Support Seal - Restore The Hardface on The Rear Contact Face, Repair-021 (VRS3678)
General
Price and availability - refer to IAE
The practices and processes referred to in this procedure by the TASK numbers are in the SPM.
NOTE
To identify the consumable materials, refer to the PCI.
NOTE
You must remove the stage 1 HPT seal from the stage 1 HPT support assembly to do this repair. Refer to TASK 72-44-10-040-001 (DISASSEMBLY-001).
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-079 PLASMA SPRAY POWDER | IE426 | CoMat 03-079 | ||
| CoMat 03-077 METAL SPRAYING POWDERNI-CR ALLOY | IE426 | CoMat 03-077 |
Spares
NONESafety Requirements
NONEProcedure
Refer to: Figure
Refer to the SPM TASK 70-12-09-120-501.
Remove the damaged hardface by grit blast.
SUBTASK 72-44-10-120-061 Remove the Damaged Hardface from the Rear Contact Face of the Stage 1 HPT Seal
NOTE
You can remove the damage by the SPM TASK 70-33-79-300-503, Stripping of Plasma and Flame Plate Coatings, SPM TASK 70-44-01-330-900, Stripping of PWA 53-5 Plasma Spray Coating or by grinding. If you grind, you must do a fluorescent penetrant inspection by the SPM TASK 70-23-01-230-501.Refer to Figure.
SUBTASK 72-44-10-220-182 Examine the Stage 1 HPT Seal after Hardface Removal
Refer to: Figure
Refer to the SPM TASK 70-34-03-340-501.
Apply hardface to the seal to a thickness of 0.004 to 0.007 in. (0.102 to 0.178 mm).
SUBTASK 72-44-10-340-058 Apply New Hardface to the Stage 1 HPT Seal
Refer to Figure.
Refer to TASK 72-44-10-200-000.
Examine the seal after you restore the hardface.
SUBTASK 72-44-10-220-183 Examine the Stage 1 HPT Seal after Hardface Repair
Figure: Stage 1 HPT seal hardface repair
Stage 1 HPT seal hardface repair
