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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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07/29/19

Message Overview:

L OUTBD BRAKE FAIL
(Caution)

DDG Reference: 32-43-05
Pilot Action (QRH): ABNORM 13-7
System Description: 32-43-00
Schematic Diagram: 32-43-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 32-43-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

There is a failure of the left outboard brake.

Possible Causes:

  • Mechanical Fault
  • Left Outboard Brake Control Valve (MT53)
  • Copilot Left Brake Pedal Position Transducer (MT59)
  • Pilot Left Brake Pedal Position Transducer (MT57)
  • Left Outboard Wheel Speed Transducer (P17)
  • Brake Control Unit (BCU) (A71)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-32-0244 - Operational Procedures to Prevent Freezing Brakes
  • AW700-32-0359 - Brake Control System - Data Gathering to Reduce the BCU No Fault Found (NFF) rate
  • AW700-32-0513 - Wheel Speed Transducer - Brake System Nuisance Fault Messages
  • AW700-32-0573 - Main Landing Gear Trailing Arm Water Ingress Survey
  • AW700-32-0581 - Wheel Speed Transducer (WST)

Forum Articles/Infoservice/Newsletter: None

NOTE: Download and complete this Water Ingress Survey Form when complying with AW700-32-0573.

Brake Control System (BCS) NFF Action:

To support the technical investigation, FSRs and Service Centers are requested to perform an NVM download, complete a condition report and fill out this BCS questionnaire when troubleshooting or removing a Brake component.

Quick Links:

Removal of the Brake Control Unit AMM 32-43-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Brake Control Unit AMM 32-43-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Brake-Pedal Position Transducer AMM 32-43-05-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Brake-Pedal Position Transducer AMM 32-43-05-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Brake Control Valve AMM 32-43-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Brake Control Valve AMM 32-43-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Brake Pressure Transducer AMM 32-43-17-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Brake Pressure Transducer AMM 32-43-17-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Wheel Speed Transducer AMM 32-43-53-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Wheel Speed Transducer AMM 32-43-53-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Select related CAIMS message below:

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