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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

07/25/19

Message Overview:

Fault Message:

HBMU_1 INVALID

Fault Code:

3141100DAU

Associated CAS:

None

Reporting LRU: Data Acquisition Unit (DAU) 1
System Description: 30-31-00
Schematic Diagram: 30-31-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: None

Fault Description:

The Data Acquisition Unit (DAU) is receiving an invalid label 270 from the Heater/Brake Temperature Monitor Unit (HBMU) 1.

Possible Causes:

  • Heater Brake Monitoring Unit (HBMU) 1 (A121)
  • Data Aquisition Unit (DAU) 1 (A17)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Connect Electrical Power to the Aircraft AMM 24-00-00-861-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Remove the Electrical Power from the Aircraft AMM 24-00-00-861-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Electrical/Electronic Safety Precautions AMM 24-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Heater/Brake-Temperature
Monitoring Unit (HBMU)		 AMM 30-31-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Heater/Brake-Temperature
Monitoring Unit (HBMU)		 AMM 30-31-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Data Acquisition Units (DAU) AMM 31-42-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Data Acquisition Units (DAU) AMM 31-42-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Operational Test of the Brake System AMM 32-43-00-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Access to Stored Faults AMM 45-45-00-970-803 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Flight Deck Effect to Fault Correlations AMM 45-45-00-970-821 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Swap HBMU 1 with HBMU 2. Is the fault still present?

    1. If NO, replace HBMU 1 and do close out.
    2. If YES, continue with next step.

  2. Replace DAU 1.
  3. Do close out.

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