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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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For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

03/03/21

Message Overview:

Message Name:

DISCRETE DISABLE FAIL

Message Code:

B3-008109

Associated CAS:

L WING ANTI-ICE FAIL
(Caution)

Reporting LRU: WING A/ICE VLV 1
System Description: 30-00-00
Schematic Diagram: 30-12-00
Wiring Diagram: 30-12-01

Message Description:

The discrete disable input of the WING ANTI-ICE VALVE 1 is detected failed.

Possible Causes:

  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. Message# = 3
  2. {Term Definitions}

    1. IAS1A-68 XX 353 01 EXCT XXXX-XXXX XXXX-XXTX XXXX-XXXX 353B: 18; WAI VALVE 1 DISABLE FAIL

Quick Links:

Wiring - Maintenance Practices - ALL SPM 20-12-00-02
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02

Troubleshooting Recommendations:

  1. The discrete disable input of the WING ANTI-ICE VALVE 1 is detected failed. Check wiring between the IASC-1 and the anti-ice panel.

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