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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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04/28/20

Message Overview:

Fault Message:

PWR INTERRUPT TO SDU

Fault Code:

23100FESC

Associated CAS:

None

Reporting LRU: Satellite Data Unit
System Description: 23-13-00
Schematic Diagram: 23-13-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 23-13-09 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

The Satellite Data Unit (SDU) had an In-flight primary power interrupt.

Possible Causes:

  • Satellite Data Unit (SDU) (A228)
  • Secondary Power Distribution Assembly (SPDA) 4 (A16)
  • Associated Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin:

AW 700-23-0584 - Honeywell SDU-600 Obsolescence

AW 700-23-0756 - MCS-7000 Obsolescence

SB 700-23-001 - Modification MCS-6000 SATCOM

SB 700-23-043 - Modification MCS-7000 SATCOM

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the Satellite Data Unit AMM 23-13-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Satellite Data Unit AMM 23-13-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the Secondary-Power Distribution Assemblies AMM 24-62-01-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the Secondary-Power Distribution Assemblies AMM 24-62-01-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Disconnect SDU connector A228CP1. Inspect all the pins and sockets on both mating sides of the connector. Make sure there are no loose, damaged or bent pins/sockets.

    1. If the inspection is not satisfactory, repair defective as required and do close out.
    2. If the inspection is satisfactory, continue with next step.

  2. Re-connect the SDU and test the system. Is the fault still present?

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

  3. Swap SPDA 4 with another SPDA. Is the fault still present?

    1. If NO, replace SPDA 4 and do close out.
    2. If YES, continue with next step.

  4. Make sure the wiring between SPDA 4 connector A16P1-m and SDU connector A228CP1-2 is not damaged or does not have an intermittent connection. Check for short to ground as well.

    1. If the wiring is defective, repair defective wiring as required and do close out.
    2. If the wiring is good, continue with next step.

  5. Replace the SDU.
  6. Do close out.

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