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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:

BRAKE FAULT
(Advisory)

DDG Reference: None
Pilot Action (QRH): GEAR 10-12
System Description: 32-43-00
Schematic Diagram: 32-43-00
Wiring Diagram: 31-45-04
32-43-17
32-43-25
32-43-45

Message Description:

The cyan 'BRAKE FAULT' advisory CAS message indicates a minor brake system fault has occurred that does not affect brake performance. A subsequent brake failure could cause uncommanded braking.

Possible Causes:

  • Weight on Wheels (WOW) signal from the Proximity Sensor Electronic Unit (PSEU)
  • Brake Pressure Transducer
  • Brake Pressure Switch
  • Brake Control Unit (BCU)
  • Integrated Avionics Processor System (IAPS)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Download the MDC for fault isolation

Download the BCU NVM for the Inboard Channel

Quick Links:

Data Download from the Maintenance Diagnostic Computer (MDC) AMM 45-45-01-970-802

Troubleshooting Recommendations:

  1. If MDC faults are showing, use drop down menu and troubleshoot according to specific B3 code.

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