DMC:V2500-A0-72-31-1201-03A-920A-CIssue No:003.00Issue Date:2019-08-01
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 72-31-12-300-010 LPC Fan Disk - Replace The Locating And/or Jacking Pad Pins, Repair-010 (VRS1158)
Effectivity
FIG/ITEM | PART NO. | |
01-200 | 5A0269 | Assembly A |
01-200 | 5A0337 | Assembly A |
01-200 | 5A1757 | Assembly B |
01-200 | 5A1948 | Assembly B |
General
The practices and processes referred to in the procedure by the TASK number are in SPM.
Price and availability - not applicable.
NOTE
To identify the consumable materials, refer to the Consumable Materials Index.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Fluorescent penetrant inspection equipment | LOCAL | Fluorescent Penetrant Inspection Equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-026 LIQUID NITROGEN | LOCAL | CoMat 03-026 | ||
| CoMat 05-019 WATERPROOF SILICON CARBIDE | LOCAL | CoMat 05-019 | ||
| CoMat 05-020 WATERPROOF SILICON CARBIDE | LOCAL | CoMat 05-020 | ||
| CoMat 05-021 WATERPROOF SILICON CARBIDE | 44197 | CoMat 05-021 | ||
| CoMat 06-022 FLUORESCENT PENETRANT (POST-EMULSIFIED ULTRA HIGH SENSITIVITY) | LOCAL | CoMat 06-022 |
Spares
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Locating pin | 77445 | AS44809 | A/R | (Assembly A) |
| Jacking pad pin | 77445 | 5A0095 | A/R | (Assembly A) |
| Shoulder headless pin | 77445 | 5A1822 | A/R | (Assembly A or B) |
| Jacking pad pin | 77445 | 5A1823 | A/R | (Assembly A or B) |
Safety Requirements
NONEProcedure

CAUTION
TITANIUM COMPONENT - YOU MUST USE SILICON CARBIDE TYPE ABRASIVE WHEELS, STONES AND PAPERS TO DRESS, BLEND AND POLISH THIS COMPONENT.TITANIUM COMPONENT - DO NOT USE FORCE WITH MECHANICAL CUTTERS OR THE MATERIAL WILL BECOME TOO HOT.TITANIUM COMPONENT - IF THE MATERIAL SHOWS A CHANGE IN COLOR, TO DARKER THAN A LIGHT STRAW COLOR, THE COMPONENT IS TO BE REJECTED.Refer to Figure.
Refer to SPM TASK 70-35-03-300-501.
Remove the burrs.
Examine for damage in the bores.
SUBTASK 72-31-12-350-058 Remove the Defective Locating and/or Jacking Pad Pins from the Stage 1 Fan Disk Assembly
Refer to SPM TASK 70-23-05-230-501.
Use fluorescent penetrant inspection equipment.
Fluorescent penetrant examine the pin holes.
SUBTASK 72-31-12-230-057 Examine the Stage 1 Fan Disk Assembly for Cracks
Refer to Figure.
SUBTASK 72-31-12-350-063 Install the New Locating and/or Jacking Pad Pins
Refer to Figure.
SUBTASK 72-31-12-220-075 Examine the Pin Seating
Figure: Replace the locating and jacking pad pins of the stage 1 fan disk assembly
Replace the locating and jacking pad pins of the stage 1 fan disk assembly

Figure: Replace the locating and jacking pad pins of the stage 1 fan disk assembly - Assembly A
Replace the locating and jacking pad pins of the stage 1 fan disk assembly - Assembly A

Figure: Replace the locating and jacking pad pins of the stage 1 fan disk assembly - Assembly B
Replace the locating and jacking pad pins of the stage 1 fan disk assembly - Assembly B

