10/06/19
Message Overview:
Fault Message:
R TURBINE O'HEAT CH A WRG/PROBE RNG
Fault Code:
7325323RBR
Associated CAS:
| Reporting LRU: | Right Engine Electronic Controller (EEC) |
| System Description: | 77-20-00 |
| Schematic Diagram: | 77-20-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 71-50-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
High Pressure (HP) Turbine Overheat Thermocouple temperature signal to the Engine Electronic Controller (EEC) Channel A failed out of range.
Possible Causes:
- Turbine Overheat Thermocouple
- Right Engine Electronic Controller (EEC)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
- Both CH A and CH B Turbine overheat thermocouple temperature signal has to fail to set the R FADEC FAIL (Caution) CAS message.
- Each Turbine Overheat thermocouple signal shall be validated within the EEC using range cross-checks. The range check limits are 5 to +1200 °C, with range checks inhibited when N2 is less than 80%. The Turbine Overheat cross check tolerance is 30 °C.
Quick Links:
| Opening of the Cowls | AMM 71-10-00-010-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Closing of the Cowls | AMM 71-10-00-410-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Bypass-Duct Access Panels (451AL/461AL, 451BL/461BL, 451CL/461CL, 451DL/461DL, 451EL/461EL, 452FR/462FR,452GR/462GR,452HR/462HR, 452JR/462JR, 452KR/462KR) |
AMM 72-71-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Bypass-Duct Access Panels (451AL/461AL, 451BL/461BL, 451CL/461CL, 451DL/461DL, 451EL/461EL, 452FR/462FR, 452GR/462GR, 452HR/462HR, 452JR/462JR, 452KR/462KR) |
AMM 72-71-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Combustion Section Fairings | EMM 73-03-02-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Combustion Section Fairings | EMM 73-03-02-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Engine Electronic Controller (EEC) | EMM 73-21-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Engine Electronic Controller (EEC) | EMM 73-21-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Turbine Overheat Detection Thermocouple | EMM 77-23-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Turbine Overheat Detection Thermocouple | EMM 77-23-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Perform wiring checks between connector EEC (P1030) and Thermocouple terminals (TB2114, TB2115) and the ground stud (GC2106).
- If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
- Swap Right Turbine Overheat Thermocouple with Left Turbine Overheat Thermocouple.
- If system checks are good, replace Right Turbine Overheat Thermocouple and do close out.
- If fault remains, continue with next step.
- Replace Right EEC.
- Do close out.