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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:

DAU 3/WRG/LGECU A (ARINC FAULT IND)

Fault Code:

3230271EL

Associated CAS:

None

Reporting LRU: Landing Gear Electronic Control Unit (LGECU)
System Description: 32-31-00
Schematic Diagram: None
Wiring Diagram: None

Fault Description:

External fault usually causes ARINC 429 data XMSN faults.

These faults include:

  • No data XMT from DAU for > 0.5 +0.5/-0 sec
  • Parity errors on data words XMT for > 0.5 +0.5/-0 sec
  • Missing data words XMT for > 0.5 +0.5/-0 sec

External failures

Possible Causes:

  • Landing Gear Electronic Control Unit (LGECU) (A52)
  • Data Acquisition Unit (DAU) 3 (A30)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

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Troubleshooting Recommendations:

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