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 72-41-21-300-088 HPC Heatshields - Replace The Surface Protection On The Stage 8 Heatshield, Repair-088 (VRS6489)
Material of component
DESCRIPTION SYMBOL MATERIAL | ||
|---|---|---|
HP Compressor Stage 8 | EBQ | 11 percent Chromium |
Heatshield Assembly | 1 percent Molybdenum | |
General
This repair must only be done when the instruction to do so is given in 72-41-21 Inspection.
The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are given in the SPM.
Price and availability
Refer to International Aero Engines
Related repairs - none
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Chemical cleaning equipment | LOCAL | Chemical cleaning equipment | ||
| Penetrant Crack Test Equipment | LOCAL | Penetrant crack test equipment | ||
| Abrasive blast equipment | LOCAL | Abrasive blast equipment | ||
| Dry blast equipment | LOCAL | Dry blast equipment | ||
| Brush | LOCAL | Brush | Vacuum assisted | |
| Paint spray equipment | LOCAL | Paint spray equipment | ||
| Conductivity meter | LOCAL | Conductivity meter |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-001 ADHESIVE TAPE (MASKING) | LOCAL | CoMat 02-001 | ||
| CoMat 02-005 ADHESIVE TAPE (MASKING) | LOCAL | CoMat 02-005 | ||
| CoMat 02-019 TAPE, ADHESIVE PAPER HEAT RESISTING MASKING | 94960 | CoMat 02-019 | ||
| CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE | LOCAL | CoMat 05-003 | ||
| CoMat 06-073 INK, METAL MARKING | 88303 | CoMat 06-073 | ||
| CoMat 07-024 AEROLAC METAL PROTECTIVE VARNISH, CLEAR | LOCAL | CoMat 07-024 | ||
| CoMat 07-036 ALUMINIUM HIGH HEAT RESISTANT PAINT | 0AM53 | CoMat 07-036 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Refer to the SPM TASK 70-12-02-120-501.
Use CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE, with abrasive blast equipment.
Abrasive blast the areas to be repaired.
SUBTASK 72-41-21-120-080 Prepare the Part for Repair

CAUTION
SURFACES FOR REPAIR MUST BE FULLY CLEANED AND NOT TOUCHED BY HAND.CLEAN COTTON OR POLYTHENE GLOVES MUST BE WORN.Refer to Figure.
Refer to the SPM TASK 70-38-21-380-501, SUBTASK 70-38-21-380-008 (type 'A' coating).
Use CoMat 07-036 ALUMINIUM HIGH HEAT RESISTANT PAINT, with paint spray equipment.
NOTE
Remove the masking tape, before you stove the aluminum high heat resistant paint.
Apply the surface protection.
SUBTASK 72-41-21-380-115 Apply the Surface Protection
Refer to Figure.
Refer to the SPM TASK 70-38-21-380-501, SUBTASK 70-38-21-220-001, (type 'A' coating).
Examine the surface protection.
SUBTASK 72-41-21-220-458 Examine the Surface Protection
Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-002.
Mark on the part number adjacent to the existing marks which are under the surface protection.
Re-identify the part.
SUBTASK 72-41-21-350-172 Re-identify the Part
Figure: Repair details and dimensions
Repair details and dimensions

