06/25/19
Message Overview:
Fault Message:
IRU #2/IRU #3/WRG/SPC CH B I/F
Fault Code:
2731102STL
Associated CAS:
| Reporting LRU: | Stall Protection Computer (SPC) |
| System Description: | 27-32-00 |
| Schematic Diagram: | 27-32-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 27-32-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Channel B of the Stall Protection Computer (SPC) receives no ARINC labels from Inertial Reference Unit (IRU) 2 or IRU 3.
Possible Causes:
- Inertial Reference Unit (IRU) 2 (A33)
- Inertial Reference Unit (IRU) 3 (A34)
- Stall Protection Computer (SPC) (A40)
- Stall Protection Computer (SPC) Channel B
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin:
- AW700-45-0065 - CAIMS Nuisance Fault Messages
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Stall Protection Computer | AMM 27-32-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Stall Protection Computer | AMM 27-32-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Inertial Reference Units (IRU) | AMM 34-45-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Inertial Reference Units (IRU) | AMM 34-45-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Swap IRUs.
- If system checks are good, replace the defective IRU and do close out.
- If fault remains, continue with next step.
- Perform wiring checks between IRU 2 (A33BP1) and SPC (A40BP1); and between IRU 3 (A34BP1) and SPC (A40BP1).
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Replace Stall Protection Computer (SPC).
- Do close out.