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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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Quick Links

10/04/19

Message Overview:

Fault Message:

L IAC (UNIVERSAL TIME CONST) RNG MA

Fault Code:

7327528LBR

Associated CAS:

None

Reporting LRU: Left Engine Electronic Controller (EEC)
System Description: 73-20-00
Schematic Diagram: 76-10-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 71-50-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

This message shows when the Universal Time Constant (UTC) signal sent by the Aircraft is defective. The signal is sent to channel A and channel B of the Engine Electronic Controller (EEC) by the Integrated Avionics Computer (IAC). This message sets as a result of an IAC cross check problem. These circuits are continuously monitored by the Full-Authority Digital Engine-Controller (FADEC).

Possible Causes:

  • Integrated Avionics Computer (IAC) 1 (A11)
  • Left Engine Electronic Controller (EEC)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

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 ]
Engine Safety Precautions AMM 71-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Opening of the Cowls AMM 71-10-00-010-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Closing of the Cowls AMM 71-10-00-410-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Visual Check of the Engine Controlling System AMM 73-20-00-210-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Deactivation of the Thrust Reverser (for Maintenance) AMM 78-30-00-040-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Activation of the Thrust Reverser (for Maintenance) AMM 78-30-00-440-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Engine Electronic Controller (EEC) EMM 73-21-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Engine Electronic Controller (EEC) EMM 73-21-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Replace IAC 1.

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

  2. Replace Left EEC.
  3. Do close out.

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