10/04/19
Message Overview:
Fault Message:
R CH B AIR DATA COMPUTER CAS RNG MA
Fault Code:
7327429RBR
Associated CAS:
| Reporting LRU: | Right Engine Electronic Controller (EEC) |
| System Description: | 76-10-00 |
| Schematic Diagram: | 76-10-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 34-11-01 [ Global Express ] [ G5000 ] [ Global XRS ] 34-11-04 [ Global Express ] [ G5000 ] [ Global XRS ] 71-50-01 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
The value of Computed Air Speed (CAS), sent by the aircraft is defective. The signal is sent to channel B of the Engine Electronic Controller (EEC) by the Micro Air Data Computers (MADC) 2 or MADC 3. These circuits are continuously monitored by the Full-Authority Digital Engine-Controller (FADEC).
Possible Causes:
- Micro Air Data Computer (MADC) 2 (A28)
- Micro Air Data Computer (MADC) 3 (A29)
- Right Engine Electronic Controller (EEC)
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Micro Air-Data Computers | AMM 34-11-09-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Micro Air-Data Computers | AMM 34-11-09-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the Eng Electronic Controller (EEC) | EMM 73-21-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Eng Electronic Controller (EEC) | EMM 73-21-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Swap MADC 2 with MADC 1.
- If system checks are good, replace MADC 2 and do close out.
- If fault remains, continue with next step.
- Swap MADC 3 with MADC 1.
- If system checks are good, replace MADC 3 and do close out.
- If fault remains, continue with next step.
- Replace Right EEC.
- Do close out.