background
x
loader
Troubleshooting
arrow By ATA By Message Color By Observed Faults by MDCBy Tips

Select color for CAS message that you wish to troubleshoot

(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.

This page includes :

For AOG assistance contact:

CRC Montreal (YUL)
Quick Links

02/02/21

Message Overview:

Message Name:

DISCRETE DISABLE FAIL

Message Code:

B3-006707

Associated CAS:

AIR COND FAULT
(Advisory)

Reporting LRU: FLOW CTRL VLV2
System Description: 21-61-00
Schematic Diagram: None
Wiring Diagram: None

Message Description:

The discrete disable input of the FLOW CONTROL VALVE 2 is detected failed.

Possible Causes:

  • Integrated Air System Controller (IASC) (A55)
  • Bleed/Air Conditioning Panel (MPE04)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

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

    1. IAS2A-40 XX 352 10 EXCT XXXX-XXXX XXXX-XXXT XXXX-XXXX 352A: 17; R FLOW CTRL VLV DISABLE

Quick Links:

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
Removal of Flow Control Valve AMM 21-51-09-000-801
Deactivation of the Flow Control Valve AMM 21-51-09-040-801
Installation of Flow Control Valve AMM 21-51-09-400-801
Activation of the Flow Control Valve AMM 21-51-09-440-801
Standard Practices - Replace Wiring SPM 20-12-00-02
Standard Practices - Repair Wiring SPM 20-12-10-02

Troubleshooting Recommendations:

  1. The discrete disable input of the FLOW CONTROL VALVE 2 is detected failed.
  2. Check wiring between the IASC-2 and the Bleed/Air Conditioning Panel.

Registered and/or unregistered trademarks of Bombardier Inc. or its subsidiaries. © 2015 Bombardier Inc. All rights reserved.