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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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08/30/19

Message Overview:

Fault Message:

SPDA 2/WRG/LGECU B (BATT PWR LOW)

Fault Code:

3231222EL

Associated CAS:

None

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

Fault Description:

Fault can occur if aircraft power (BATT BUS) is not equal to or greater than 20.5 VDC for more than 5 seconds.

Fault is usually caused by:

  • BATT BUS PWR < 14.75 +/- 0.75 VDC
  • Circuit Breaker (CKT BRKR) open or damaged
  • Damaged BATT power bus (WIRING)

At Secondary Power Distribution Assembly (SPDA) 2, for BAT

Possible Causes:

  • Landing Gear Electronic Control Unit (LG ECU) (A52)
  • Secondary Power Distribution Assembly (SPDA) 2 (A14)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

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Troubleshooting Recommendations:

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