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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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06/09/21

Message Overview:

SMOKE AV BAY FAIL
(Caution)

DDG Reference: None
Pilot Action (QRH): ABNORM 7-3
System Description: 26-14-00
Schematic Diagram: 26-14-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 26-10-03 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

Indicates one or more (if two are installed) smoke detector(s) in the avionics bay has failed.

Possible Causes:

  • Fire Detection and Extinguishing (FIDEEX) Control Unit (A106)
  • Smoke Detector 5 (A117)
  • Smoke Detector 6 (A221)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Notice To Operators (NTO): None

Flight Operation Notifications Manual (FONM): None

Quick Links:

Removal of the Fire Detection and Extinguishing (FIDEEX) Control Unit AMM 26-10-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Fire Detection and Extinguishing (FIDEEX) Control Unit AMM 26-10-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Avionics Compartment/Avionics Rack Smoke Detectors AMM 26-14-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Avionics Compartment/Avionics Rack Smoke Detectors AMM 26-14-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Access to Active Faults AMM 45-45-00-970-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Access to Stored Faults AMM 45-45-00-970-803 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Using the PMAT, access CAIMS active or stored faults. Select displayed fault from menu below:

    1. If no fault messages are present, continue with next step.

  2. Interchange the Avionic Bay Smoke Detector 5 with another smoke detector outside of the avionic bay. Is the fault still present?

    1. If YES, reinstall smoke detector 5 and continue with next step.
    2. If NO, replace defective smoke detector and do close out.

  3. Interchange smoke detector 6, if installed, with another smoke detector outside of the avionic bay. Is the fault still present?

    1. If YES, reinstall smoke detector 6 and continue with next step.
    2. If NO, replace defective smoke detector and do close out.

  4. Perform a wiring check between Avionic Bay Smoke Detectors 5 and 6 and the FIDEEX Control Unit.

    1. If wiring defects are found, repair defective wiring as required and do close out.
    2. If no defects are found, continue with next step.

  5. Replace the FIDEEX CU.
    NOTE: Do not replace FIDEEX CU before all of the above troubleshooting steps have been performed.
  6. Do close out.

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