07/03/19
Message Overview:
Fault Message:
AIR DATA COMPTR #3 FAULT [FCU 2]
Fault Code:
27654252SX
Associated CAS:
| Reporting LRU: | Air Data Computer (ADC) |
| System Description: | 34-11-00 |
| Schematic Diagram: | 34-11-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 34-11-04 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Flight Control Unit (FCU) 2 does not receive data from Air Data Computer (ADC) 3.
Possible Causes:
- Air Data Computer (ADC) 3 (A29)
- Flight Control Unit (FCU) 2 (A66)
- 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 ] |
| Removal of the Side Console Trim-Panels (221EZ/222EZ, 221FZ/222FZ, 221TZ/222TZ) |
AMM 25-12-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Side Console Trim-Panels (221EZ/222EZ, 221FZ/222FZ, 221TZ/222TZ) |
AMM 25-12-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Flight-Control Units | AMM 27-61-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Flight-Control Units | AMM 27-61-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Access to System Diagnostics | AMM 45-45-00-970-804 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the External Avionics-Compartment Access-Panel (140BB) | AMM 52-45-11-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the External Avionics-Compartment Access-Panel (140BB) | AMM 52-45-11-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Safety Precautions - Maintenance Practices - ALL | SPM 20-00-01-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Remove the FCU 2 to get access to electrical connector A66AP1. Disconnect the electrical connector A29P1 for the ADC 3. Perform a continuity check as follows:
From To Result A29P1-63 A66DP1-15H A29P1-64 A66DP1-15G - If there is no continuity, repair the defective wiring as required and do close out.
- If there is continuity, continue with the next step.
- Perform a continuity check as follows:
From To Result A66DP1-15H Ground A66DP1-15G Ground - If there is continuity, repair defective wiring as required and do close out.
- If there is no continuity, continue with next step.
- Swap FCU 2 with FCU 1. Is the fault still present?
- If YES, continue with next step.
- If NO, replace FCU 2 and do close out.
- Replace ADC 3.
- Do close out.