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 72-45-21-300-012 HPT Case - Install The Helicoil Inserts In The BSI Bosses, Repair-012 (VRS1985)
Effectivity
FIG/ITEM PART NO. | |
|---|---|
01-010 | 2A0250 |
01-010 | 2A0250SL87VA156 |
01-010 | 2A1591 |
01-010 | 2A1591SL87VA156 |
01-010 | 2A1600 |
01-010 | 2A1600SL114902 |
General
Price and availability - None
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
For the method to clean the parts, refer to TASK 72-45-21-100-000.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| STI tap | 0AM53 | 4FPB | Emhart Teknologies products | |
| Hand installation tool | 0AM53 | 7552-4 | Emhart Teknologies products | |
| Tang break-off tool | 0AM53 | 3695-4 | Emhart Teknologies products | |
| Thread plug gage | 0AM53 | 3694-4 | Emhart Teknologies products | |
| 10X magnifying glass | LOCAL | 10X magnifying glass |
Consumables, Materials and Expendables
NONESpares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Helicoil Insert | 0AM53 | 1191-4TN250 | AR | FIG/ITEM 01-090 |
Safety Requirements
NONEProcedure
Use Thread plug gage.
Examine the threads.
SUBTASK 72-45-21-220-082 Examine the Threads
Refer to Figure.
Put the 1191-4TN250 into the tip of the insertion tool.
Put the insert into the threaded hole.
Turn the handle clockwise so the top of the insert is three-quarters to one and a half pitch below the face of the boss.
Use Tang break-off tool.
Break the tang of the insert at the notch.
SUBTASK 72-45-21-350-080 Install the New Helicoil Inserts
Refer to SPM TASK 70-35-08-300-501.
Torque the bolt to between 65 and 85 lbfin (7.3 and 9.6 Nm).
Torque check the installed helicoil insert.
The insert must not protrude out of insert hole.
The insert must not move.
Examine the helicoil insert position.
SUBTASK 72-45-21-220-083 Do A Torque Check
Refer to Figure.
Do a staking at two locations.
SUBTASK 72-45-21-350-081 Stake the New Helicoil Insert
Refer to Figure.
Use a 10X magnifying glass.
No damage is permitted.
No cracks are permitted.
Visually examine the repaired area.
SUBTASK 72-45-21-220-084 Examine the Repaired Area
Use vibro engraving equipment.
Refer to SPM TASK 70-09-00-400-501, (SUBTASK 70-09-00-400-001).
Vibro engrave VRS1985 near to the part number.
SUBTASK 72-45-21-350-082 Vibro Engrave VRS1985
Figure: Repair Details and Dimensions
Repair Details and Dimensions
Repair Details and Dimensions
