background
x
loader
Troubleshooting
arrow By ATA By Message Color By Observed Faults By CAIMS By 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

06/30/21

Message Overview:

Message Name:

WING/TAIL STROBE-LIGHT POWER SUPPLIES UNSERVICEABLE

Message Code: 334OBS017
Effectivity: All
System: Strobe Lighting System
System Description: 33-43-00
Schematic Diagram: 33-43-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 33-43-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

No output from a Wing/Tail Strobe Light (STROBE) Power-Supply.

Possible Causes:

  • Tail Strobe Light Power Supply (A127)
  • Left Wing Strobe Light Power Supply (A141)
  • Right Wing Strobe Light Power Supply (A142)
  • Strobe Lights Switch (S3)

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Connect Electrical Power to the Aircraft AMM 24-00-00-861-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Remove the Electrical Power from the Aircraft AMM 24-00-00-861-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Opening of Non-Thermal Circuit Breakers AMM 24-00-00-863-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Closing of Non-Thermal Circuit Breakers AMM 24-00-00-863-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Electrical/Electronic Safety Precautions AMM 24-00-00-910-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Wing Strobe-Light Power-Supplies AMM 33-44-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Wing Strobe-Light Power-Supplies AMM 33-44-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Tail Strobe-Light Power-Supply AMM 33-44-01-000-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Tail Strobe-Light Power-Supply AMM 33-44-01-400-802 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Operational Test of the Wing/Tail Strobe-Light
Power-Supplies		 AMM 33-44-01-710-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Safety Precautions - Maintenance Practices - ALL SPM 20-00-01-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Set the STROBE switch to ON.
  2. Perform a 28 VDC voltage check at the connectors on the left wing strobe-light power-supply (A141), right wing strobe-light power-supply (A142) and tail strobe-light power-supply (A127) as follows:

    From To Expected Result Result
    A141P1-A A141P1-B +28 VDC
    A142P1-A A142P1-B +28 VDC
    A127P1-A A127P1-B +28 VDC

    1. If there is no 28 VDC, repair or replace the defective wiring of the power supply as required and do close out.
    2. If there is 28 VDC, replace the applicable power-supply and continue with next step.

  3. Check if the problem is corrected.

    1. If problem is corrected, do close out.
    2. If problem is not corrected, repair or replace the wiring of the external lights control panel and continue with next step.

  4. Is the fault still present?

    1. If NO, do close out.
    2. If YES, continue with next step.

  5. Perform the troubleshooting for CAS Message ELEC SYS FAIL (Amber) and ELEC SYS FAULT (Cyan).
  6. Do close out.

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