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 72-42-62-300-001 Combustion Chamber Retaining Bolt - Repair The Plasma Coat, Repair-001 (VRS3268)
General
Price and availability - refer to IAE
To identify the consumable materials refer to the PCI.
The practices and processes referred to in the procedure by the TASK number are in the SPM.
Preliminary Requirements
Pre-Conditions
| Action/Condition | Data Module/Technical Publication |
|---|---|
| Make sure that all the necessary cleaning and inspection procedures are done before this repair. |
Support Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-066 METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | DK026 | CoMat 03-066 | IAE 53-5 (AMS 7875) | |
| CoMat 03-066A METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 0CZB2 | CoMat 03-066A | ||
| CoMat 03-066D METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 33870 | CoMat 03-066D | ||
| CoMat 03-066E METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 01FK3 | CoMat 03-066E | ||
| CoMat 03-066F METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 53654 | CoMat 03-066F | ||
| CoMat 03-066G METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 56923 | CoMat 03-066G | ||
| CoMat 03-066H METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 60097 | CoMat 03-066H | ||
| CoMat 03-066J METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 1DMQ3 | CoMat 03-066J | ||
| CoMat 03-066K METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE | 1GD26 | CoMat 03-066K |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
Grind to remove wear and coat by SPM TASK 70-32-07-100-501 and SPM TASK 70-34-03-340-501. Remove the minimum amount of parent material necessary to accomplish the repair.
SUBTASK 72-42-62-330-051 Remove the Coating from the Combustion Chamber Retaining Bolt
Clean the part by SPM TASK 70-11-03-300-503.
SUBTASK 72-42-62-110-054 Clean The Combustion Chamber Retaining Bolt
Refer to Figure.
Do a fluorescent penetrant inspection of the repair area by SPM TASK 70-23-01-230-501 or SPM TASK 70-23-02-230-501
SUBTASK 72-42-62-220-059 Examine the Combustion Chamber Retaining Bolt
Refer to Figure.
Do a dimensional inspection of the repair area.
SUBTASK 72-42-62-220-056 Examine the Combustion Chamber Retaining Bolts After Grinding
Refer to SPM TASK 70-34-18-380-501
Grit blast out of the repair area shown is not permitted. Use masks.
Refer to Figure.
SUBTASK 72-42-62-380-002 Prepare the Surface to be Plasma Coated
Refer to Figure.
Apply CoMat 03-066 METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066A METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066D METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066E METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066F METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066G METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066H METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, CoMat 03-066J METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE, or CoMat 03-066K METAL SPRAYING POWDER, 75 CHROMIUM CARBIDE/25 (80 NICKEL - 20 CHROMIUM ALLOY), FINE coating to the repair area. Refer to the TASK 70-34-03-340-501
Apply sufficient coating to get final coating thickness of 0.003 in. - 0.005 in. (0.076 mm - 0.127 mm)
Coating out the repair area is not permitted.
Apply plasma spray coating to the repair area.
SUBTASK 72-42-62-340-051 Coat the Combustion Chamber Retaining Bolt
After the coat is applied and the part is cool, remove the mask or maskants. Refer to SPM TASK 70-34-03-340-501.
Remove the tape residue by SPM TASK 70-11-26-300-503.
SUBTASK 72-42-62-350-053 Remove The Masking
Refer to Figure.
Refer to SPM TASK 70-32-07-100-501 and SPM TASK 70-34-03-340-501.
Coating thickness shall be 0.003 in. - 0.005 in. (0.076 mm - 0.127 mm)
Grind the plasma spray coating, as required, to the dimensions given in the Figure.
SUBTASK 72-42-62-324-001 Grind The Plasma Coating As Required
Refer to Figure.
Examine the repaired area by IAE 53-5. Refer to SPM TASK 70-34-03-340-501.
Coating thickness shall be 0.003 in. - 0.005 in. (0.076 mm - 0.127 mm)
Do a dimensional inspection of the repair area per Figure.
Do a visual and dimensional inspection of the repaired area.
SUBTASK 72-42-62-220-057 Examine the Combustion Chamber Retaining Bolt
Permanently mark using SPM TASK 70-09-00-400-501, vibration peen method.
Mark the part with "VRS3268" adjacent to the assembly part number.
SUBTASK 72-42-62-350-051 Identify the Repair
Figure: Repair Details and Dimensions
Repair Details and Dimensions
