08/27/19
Message Overview:
Fault Message:
MADC/HUDC CONS FAULT
Fault Code:
343001FHUD
Associated CAS:
| Reporting LRU: | Head-Up Display (HUD) System |
| System Description: | 34-32-00 |
| Schematic Diagram: | 34-32-00 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wiring Diagram: | 34-11-01 [ Global Express ] [ G5000 ] [ Global XRS ] 34-11-04 [ Global Express ] [ G5000 ] [ Global XRS ] 34-32-03 [ Global Express ] [ G5000 ] [ Global XRS ] 34-32-04 [ Global Express ] [ G5000 ] [ Global XRS ] |
Fault Description:
Head-Up-Display System (HUD) does not receive data from the Integrated Avionics Computer (Micro Air Data Computer (MADC)).
Possible Causes:
- Head-Up Flight Display Computer (HFDC) (A250)
- Micro Air Data Computer (MADC) 1 (A27)
- Micro Air Data Computer (MADC) 2 (A28)
- Micro Air Data Computer (MADC) 3 (A29)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
If more fault reports are sent by a different system about the micro air−data computer, do the fault isolation of the MADC.
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 Head-Up-Display (HUD) Computer |
AMM 34-32-01-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the Head-Up-Display (HUD) Computer |
AMM 34-32-01-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Perform wiring check between MADC 1, JB3 and HUDC as follows:
From To Result A27P1-68 A250BP1-J1 A27P1-69 A250BP1-K1 GND A250BP1-J2 A27P1-SH A250BP1-SH - If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
NOTE: When short circuit is detected, remove all interface components and reinstall one at a time to isolate short.
- Perform wiring check between MADC 2, JB6 and HUDC as follows:
From To Result A28P1-68 A250EP1-E1 A28P1-69 A250EP1-E2 GND A250EP1-D2 A28P1-SH A250EP1-SH - If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
NOTE: When short circuit is detected, remove all interface components and reinstall one at a time to isolate short.
- Perform wiring check between MADC 3, JB5 and HUDC as follows:
From To Result A29P1-63 A250BP1-E6 A29P1-64 A250BP1-F6 GND A250BP1- B5 A29P1-SH A250BP1-SH A29P1-66 A250EP1-E4 A29P1-67 A250EP1-F4 GND A250EP1- F3 A29P1-SH A250EP1-SH - If wiring checks are not good, repair defective wiring as required and do close out.
- If wiring checks are good, continue with next step.
NOTE: When short circuit is detected, remove all interface components and reinstall one at a time to isolate short.
- Replace defective MADC(s).
- If system checks are good, do close out.
- If fault remains, continue with next step.
- Replace HUDC.
- Do close out.