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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

02/02/21

Message Overview:

Message Name:

DISCRETE DISABLE FAIL

Message Code:

B3-006702

Associated CAS:

AIR COND FAULT
(Advisory)

Reporting LRU: FLOW CTRL VLV1
System Description: 21-61-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

The discrete disable input of the FLOW CONTROL VALVE 1 is detected failed.

Possible Causes:

  • Integrated Air System Controller (IASC) (A55)
  • Bleed/Air Conditioning Panel (MPE03)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

  1. Message# = 3
  2. Comp Id = MPE03
  3. Fault Logged = AIR,TAXI
  4. Status = FAILED/WIRING
  5. Message Type = Fault Message
  6. {Term Definitions}

    • IAS1A-36 XX 352 00 EXCT XXXX-XXXX XXXX-XXXT XXXX-XXXX 352A: 17; L FLOW CTRL VLV DISABLE

Quick Links:

Removal of Flow Control Valve AMM 21-51-09-000-801
Installation of Flow Control Valve AMM 21-51-09-400-801
Deactivation of the Flow Control Valve AMM 21-51-09-040-801
Activation of the Flow Control Valve AMM 21-51-09-440-801
Installation of Integrated Air System (IAS) Controller AMM 21-31-01-000-801
Removal of Integrated Air System (IAS) Controller AMM 21-31-01-400-801
Operational Test of the Integrated Air System (IAS) Controller AMM 21-31-01-710-801
Wiring - Maintenance Practices - ALL SPM 20-12-00-02
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02
Electrical Connectors - Maintenance Practice - ALL SPM 20-20-00-02

Troubleshooting Recommendations:

  1. Check wiring between the IASC-1 and the bleed/air conditioning panel.

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