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(WARNING)
RED MESSAGE (CAUTION)
AMBER MESSAGE (ADVISORY)
CYAN MESSAGE (STATUS)
WHITE MESSAGE Require immediate crew attention. These messages are accompanied by flashing master warning, triple chime attenson with or without voice message or dedicated tone. Require immediate crew awareness and future crew action may be required in the form of alternate system selection or performance limitation. These message are accompanied by flashing master caution and a single chime. Indicate safe or normal system operation which require crew awareness, over and above the dark cockpit philosophy. Indicate minor failures or reduction in systems capability, which require no crew action.

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08/29/19

Message Overview:

Fault Message:

IAC3/WRG/MON FAULT

Fault Code:

3430028HUD

Associated CAS:

None

Reporting LRU: Head-Up Display (HUD) System
System Description: 34-32-00
Schematic Diagram: 34-32-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 34-11-04 [ Global Express ]  [ G5000 ]  [ Global XRS ]
34-32-04 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Head-Up Display (HUD) System does not receive data from the Integrated Avionics Computer (IAC).

Possible Causes:

  • Head-Up Flight Display Computer (HFDC) (A250)
  • Integrated Avionics Computer (IAC) 3 (A12)
  • 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 same IAC, do the CAIMS Test of the Integrated Avionics Computer (IAC) System.

Quick Links:

Removal of the Integrated Avionics Computers (IAC) AMM 31-41-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Integrated Avionics Computers (IAC) AMM 31-41-01-400-801 [ 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:

  1. Swap IAC 3 with IAC 2.

    1. If system checks are good, replace IAC 3 and do close out.
    2. If fault remains, continue with next step.

  2. Perform wiring checks between IAC 3 and HUDC as follow:

    From To Result
    A12DP1-18 A250BP1-E7
    A12DP1-19 A250BP1-F7
    A12DP1-SH A250BP1-SH
    GND A250BP1-B7
    A12DP1-18 A250EP1-A4
    A12DP1-19 A250EP1-B4
    A12DP1-SH A250EP1-SH
    GND A250EP1-A3

    1. If wiring checks are not good, repair defective wiring as required and do close out.
    2. If wiring checks are good, continue with next step.

  3. Replace HUDC.
  4. Do close out.

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