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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:

DISAGREE / VALVE CLOSED

Message Code:

B3-008107

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 WING ANTI-ICE VALVE 1 is detected failed in closed position.

Possible Causes:

  • Left Wing Anti-Ice Valve 1 (MPE13)
  • Position Switch
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. Message# = 1
  2. Comp Id = MPE13
  3. {Term Definitions}

    1. IAS1A-67 XX 353 01 EXCT XXXX-XXXX XXXX-XXXT XXXX-XXXX 353B: 17; WAI VALVE 1 FAIL / CLOSED

Quick Links:

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

Troubleshooting Recommendations:

  1. Check valve or position switch or wiring between the valve and the IASC #1.

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