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 72-41-34-300-018 HPC Vane Actuating Crankshaft - Replace The Inserts In The Adaptable Crankshaft, Repair-018 (VRS6258)
Material of component
PART IDENTIFICATION | RR SYMBOL | MATERIAL |
|---|---|---|
HP Compressor Vane Actuating Crankshaft | EAK | Jethete |
General
This Repair must only be done when the instruction is given in TASK 72-41-34 Inspection/Check.
This Repair has been issued for the HP compressor adaptable crankshaft assembly insert replacement.
This repair scheme is to replace the inserts when they are broken, worn, cross threaded or missing. The inserts to be replaced are No. 10 0.190 inch diameter, 32 threads per inch, screw lock type.
Where reference is made to a SUBTASK within a TASK in the form.TASK, SUBTASK" the operator must read and apply the complete TASK. The SUBTASK is listed only when the TASK gives options for the processing of the component. The specified SUBTASK instructs what option must be used during application of the TASK for the successful completion of the repair scheme VRS6258.
TASKS identified by SPM TASK are in the Standard Practices Manual (SPM).
Price and availability
Refer to IAE
NOTE
NOTE
NOTE
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Standard workshop equipment | LOCAL | Standard workshop equipment | ||
| 10X Binocular inspection equipment | LOCAL | 10X Binocular inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY) | LOCAL | CoMat 06-063 |
Safety Requirements
NONEProcedure
The SPM TASK 70-35-08-300-501 SUBTASK 70-35-08-350-001.
Remove the damaged helicoil insert.
SUBTASK 72-41-34-350-058 Remove the Damaged Helicoil Insert
Refer to SPM TASK 70-23-01-230-501.
Reject.
If cracking is detected.
Continue with the repair.
If no cracking is detected.
Do a crack test of the threads on the holes the helicoil inserts were removed from.
SUBTASK 72-41-34-084-001 Fluorescent Penetrant Inspect
The SPM TASK 70-35-08-300-501 SUBTASK 70-35-08-350-002.
Install the helicoil insert.
SUBTASK 72-41-34-350-059 Install the Helicoil Insert
Reject.
If any defects are detected.
Continue with the repair.
If no defects are detected.
Do a visual inspection for cracking or other defect indications of the helicoil insert and the surrounding area of the HP Compressor Vane Actuating Crankshaft.
SUBTASK 72-41-34-220-002 Do a Visual Inspection
The SPM TASK 70-35-08-300-501 SUBTASK 70-35-08-220-001.
Repeat the repair from Step.
If the wirethread is not in a satisfactory condition.
Continue with the repair.
If the wirethread insert is in a satisfactory condition.
Do an inspection of the helicoil inserts.
SUBTASK 72-41-34-220-188 Do an Inspection of the Helicoil Inserts
