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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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Quick Links

10/09/24

Message Overview:

Message Name:

PRESSURE TRANSDUCER OUTBD R/WRG/BCU

Message Code:

3245425HA

Reporting LRU: Brake Control Unit (BCU)
Associated CAS: BRAKE FAULT (Advisory)
System Description: 32-43-00 - Brake Control System
Schematic Diagram: [ G5000 ]  [ Global Express ]  [ Global XRS ] SSM 32-43-00-101 - Brake Control System - Electrical Schematic
Wiring Diagram: [ G5000 ]  [ Global Express ]  [ Global XRS ] WM 32-43-00-3_002 - Sheet 2 - Right Hand Side - [9002]
[ G5000 ]  [ Global Express ]  [ Global XRS ] WM 32-43-02-1_001 - Sheet 1 - Right - ALL

Message Description:

Right Outboard Pressure Transducer has been detected failed by the Brake Control Unit (BCU).

Possible Causes:

  • Right Outboard Brake Pressure Transducer 4 (MT54)
  • Brake Control Unit (BCU) (A71)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

  • AW700-32-0138 - Loss of Normal Braking Upon Landing
  • AW700-32-0244 - Operational Procedures to Prevent Freezing Brakes
  • AW700-32-0359 - Brake Control System - Data Gathering to Reduce the Brake Control Unit (BCU) No-Fault-Found (NFF) rate
  • AW700-32-0513 - Wheel Speed Transducer - Brake System Nuisance Fault Messages
  • SB700-32-016 - MODIFICATION - BRAKE CONTROL SYSTEM - PART NO. CHANGE OF THE BRAKE CONTROL UNIT TO GW415-7125-5

Full Throttle Blog/Forum Articles/Infoservice/Newsletter: None

Flight Operation Notifications Manual (FONM): None

NOTES:

  • The Brake Pressure Transducer outputs can be monitored in CAIMS on the BRAKE CONTROL SYSTEM DATA PAGE 2 to assist troubleshooting.
  • If you replace a brake system component please fill out this questionnaire.

Quick Links:

Grounding of the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-11-00-867-801
Removal of the Covers and Plugs [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-12-00-020-801
Installation of the Covers and Plugs [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM10-12-00-420-801
Standard Aircraft Configuration for Maintenance [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM12-00-00-867-801
Aircraft Walkaround (for Maintenance) [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM12-00-00-867-802
Connect Electrical Power to the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-861-801
Remove the Electrical Power from the Aircraft [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-861-802
Electrical/Electronic Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-801
Electrostatic Discharge Safety Precautions [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM24-00-00-910-802
Operational Test of the Brake System [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM32-43-00-710-801
Removal of the Brake Control Unit [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM32-43-01-000-801
Installation of the Brake Control Unit [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM32-43-01-400-801
Removal of the Brake Pressure Transducer [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM32-43-17-000-801
Installation of the Brake Pressure Transducer [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM32-43-17-400-801
Access to Active Faults [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-802
Access to Stored Faults [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-803
Access to System Diagnostics [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-804
Flight Deck Effect to Fault Correlations [ G5000 ]  [ Global Express ]  [ Global XRS ] AMM45-45-00-970-821
Wire Repair - Maintenance Practices - ALL [ G5000 ]  [ Global Express ]  [ Global XRS ] SPM20-12-10-02

Troubleshooting Recommendations:

  1. Interchange right outboard pressure transducer with the left outboard pressure transducer.

    1. If system checks are good, replace right outboard pressure transducer and do close out.
    2. If fault remains, continue with next step.

  2. Perform wiring checks between right outboard pressure transducer and BCU.

    1. If wiring checks are not good, repair defective wiring as required and do close out.
    2. If wiring checks are good, continue with next step.

  3. Replace BCU.
  4. Do close out.

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