10/03/19
Message Overview:
Fault Message:
L CH B AIR DATA COMPUTER ALT RNG
Fault Code:
7326029LBR
Associated CAS:
| Reporting LRU: | Left 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:
Micro Air Data Computer (MADC) 1 or MADC 2 altitude value failed range or cross check within Engine Electronic Controller (EEC).
Possible Causes:
- Micro Air Data Computer (MADC) 1 (A27)
- Micro Air Data Computer (MADC) 2 (A28)
- Left Engine Electronic Controller (EEC)
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
- CAIMS fault message - L CH A AIR DATA COMPUTER ALT RNG may also be displayed.
- Altitude split on the PFD and/or ADC 1 or 2 MISCMP CAS message may provide indication of which MADC is faulty.
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-B00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Eng Electronic Controller (EEC) | EMM 73-21-01-400-801-B00 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
NOTE: Troubleshoot indicated altitude splits and/or ADC 1 or 2 MISCMP CAS, if posted, before continuing.
- Swap MADC 1 with MADC 3.
- If system checks are good, replace MADC 1 and do close out.
- If fault remains, continue with next step.
- Swap MADC 2 with MADC 3.
- If system checks are good, replace MADC 2 and do close out.
- If fault remains, continue with next step.
- Replace Left EEC.
- Do close out.