07/06/21
Message Overview:
Message Name:
NO ITT INDICATION ON THE EICAS DISPLAY
| Message Code: | 772OBS003 |
| Effectivity: | All |
| System: | Engine Temperature Indicating System |
| System Description: | 77-20-00 |
| Schematic Diagram: | 77-20-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 77-20-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Message Description:
The Engine Electronic Controller (EEC) senses no Inter-Turbine Temperature (ITT) signal or that there is an unsatisfactory difference between the ITT signals in channel A and B. This causes the result of no primary ITT indication on the Engine Indication and Crew Alerting System (EICAS) Display in the Flight Compartment.
Possible Causes:
- Inter-Turbine Temperature (ITT) Thermocouple
- Engine Electronic Controller (EEC)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Connect Electrical Power to the Aircraft | AMM 24-00-00-861-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Remove the Electrical Power from the Aircraft | AMM 24-00-00-861-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Opening of Non-Thermal Circuit Breakers | AMM 24-00-00-863-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Closing of Non-Thermal Circuit Breakers | AMM 24-00-00-863-802 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Electrical/Electronic Safety Precautions | AMM 24-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| CAIMS PMAT General Instructions | AMM 45-45-00-970-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to Stored Faults | AMM 45-45-00-970-803 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Write Fault Report to Printer | AMM 45-45-00-970-818 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Flight Deck Effect to Fault Correlations | AMM 45-45-00-970-821 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Engine Safety Precautions | AMM 71-00-00-910-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Start the Engine | AMM 71-00-00-866-806 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Engine Shutdown (Usual) | AMM 71-00-00-866-809 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Perform the troubleshooting to find the active or stored fault messages shown during the fault confirmation. Go to the applicable troubleshooting as follows:
- Do close out.