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

06/22/21

Message Overview:

Message Name:

SATELLITE DATA UNIT COOLING FAN INOPERATIVE

Identifier: 215OBS015
Effectivity: AC9002 to AC9135 only
System: Air Conditioning
Associated CAS: None
System Description: 21-54-00
Schematic Diagram: 21-54-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 23-13-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Message Description:

SDU fan does not operate.

Possible Causes:

  • Satellite Data Unit (SDU) Fan has an obstruction and cannot turn freely
  • Secondary Power Distribution Assembly (SPDA) 4
  • Satellite Data Unit (SDU) Fan
  • Fan Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Notice To Operators (NTO): None

Flight Operation Notifications Manual (FONM): None

Quick Links:

SDU Cooling Fan - Removal AMM 21-54-13-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
SDU Cooling Fan Cooling Fans - Installation AMM 21-54-13-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Secondary Power Distribution Assemblies - Removal AMM 24-62-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Secondary Power Distribution Assemblies - Installation AMM 24-62-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair SPM 20-12-10 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Check for 28 VDC power supplied to SDU fan at SPDA4 A16P1 pin m.

    • If no 28 VDC, continue with next step.
    • If there is 28 VDC, go to step 3.

  2. Interchange SPDA4.

    • If system checks are good, do close out.
    • If fault remains, continue with next step.

  3. Perform wiring checks between SDU fan and SPDA4.

    • If system checks are good, do close out.
    • If fault remains, continue with next step.

  4. Replace defective SDU fan.
  5. Do close out.

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