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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

08/20/19

Message Overview:

Fault Message:

DEFOG FAULT/EVSHC/WRG

Fault Code:

3000142IN

Associated CAS:

EVS DEFOG FAULT
(Advisory)

Reporting LRU: Enhanced Vision System Heater Controller (EVSHC)
System Description: 34-33-00
Schematic Diagram: 34-33-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 34-33-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Missing or invalid input of defog set point label (ARINC LABEL 204) from the Head-Up Flight Display Computer (HFDC) to the Enhanced Vision System (EVS) Heater Controller when the EVS Infrared Sensor Unit (ISU) is selected on.

Possible Causes:

  • Head-Up Flight Display Computer (HUFDC) (A250)
  • Data Acquisition Unit (DAU) 2 (A18)
  • Data Acquisition Unit (DAU) 4 (A31)
  • Enhanced Vision System Heater Controller (EVSHC) (A315)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Data Acquisition Units (DAU) AMM 31-42-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Data Acquisition Units (DAU) AMM 31-42-01-400-801 [ 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 ]
Removal of the Enhanced Vision System (EVS)
Heater Controller		 AMM 34-33-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Enhanced Vision System (EVS)
Heater Controller		 AMM 34-33-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Using the Bus Reader, read label 165 “ISU Corrected Temp” coming out of the HUD computer. Make sure label 165 is present and valid.
  2. Using the Bus Reader, read ASCB WSP56, Data Set 2 “Demist Set “Point”, coming out of from DAU4. Make sure WSP 56 Data set 2 is present and valid.
  3. Using the Bus Reader, read label 204 “Demist Set “Point”, coming out of the DAU 2. Make sure label 204 is present and valid.
  4. Replace EVSHC.
  5. Do close out.

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