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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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01/28/21

Message Overview:

APU OVERSPEED
(Caution)

DDG Reference: 49-11
Pilot Action (QRH): APU 01-4
System Description: 49-70-00
Schematic Diagram: 49-61-00
Wiring Diagram: 49-61-01

Message Description:

The amber 'APU OVERSPEED' caution CAS message indicates the APU has been shut down due to a over-speed.

  • The ESU has detected information received from the N2 monopole that has exceeded system limits.

Possible Causes:

  • None

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