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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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02/11/21

Message Overview:

Message Name:

APU GEN WHITE ON SYNOPTIC PAGE AND DOES NOT FEED ELECTRICAL BUS

Identifier: 243OBS006
Effectivity: 20501 - 20999
System: DC Power Generation
System Description: 24-31-00
Schematic Diagram: 24-31-10
Wiring Diagram: 24-31-09

Message Description:

The APU GEN icon on the electrical synoptic page is white and does not feed the electrical bus even if the electrical control panel APU GEN switch is selected ON. The APU GEN OFF (status) CAS message is displayed and no MDC APU GEN related faults are present.

Possible Causes:

  • Right Secondary Power Center (RSPC) APU GEN switch

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW300-24-0141 - Electrical System and Flight Display Issues During Flight

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Electrical/Electronic Safety Precautions AMM 24-00-00-910-801
Operational Test of the APU Generator AMM 24-31-09-710-801

Troubleshooting Recommendations:

  1. Access the RSPC circuit breaker panel.
  2. Check and make sure the APU GEN toggle switch is set to NORM.
  3. Do close out.

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