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

03/24/21

Message Overview:

Message Name:

NO OUTPUT

Message Code:

B3-007250

Associated CAS:

None

Reporting LRU: NAV 1
System Description: 34-51-00
Schematic Diagram: 34-51-00
Wiring Diagram: 34-51-01

Message Description:

No L-NAV data received at L-RIU.

Possible Causes:

  • L NAV-4000 VOR/LOC/GS/MB/ADF Receiver 1 (VHF NAV) (A047)
  • Circuit Breaker
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Fault Confirmation Procedure:

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

    1. RIU1-7 1X 350 01 EXCT XXXX-XXXX XXXX-XXXX TXXX-XXXX 350: 16;L-ADF-2 INPUT INACTIVE
    2. RIU1-8 1X 350 01 EXCT XXXX-XXXX XXXX-XXXT XXXX-XXXX 350: 17;L-VIR-2 INPUT INACTIVE

Quick Links:

Removal of the VHF Navigation Receiver AMM 34-51-01-000-801
Installation of the VHF Navigation Receiver AMM 34-51-01-400-801
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. Suspect failed L-NAV output, open breaker, or wiring. 28 VDC pin 64; Gnd pin 65.

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