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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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For AOG assistance contact:

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Quick Links

09/04/20

Message Overview:

Fault Message:

DCPC TLC2-TTC2 CONTACTOR-K2 FAILED

Fault Code:

2460424DCP

Associated CAS:

ELEC SYS FAIL
(Caution)

Reporting LRU: DC Power Center (DCPC)
System Description: 24-60-00
Schematic Diagram: 24-61-00 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wiring Diagram: 24-61-01 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Fault Description:

Primary Logic Cards (PLC) detects a discrepancy between coil drive status and auxiliary contact status.

Possible Causes:

  • DC Power Center (DCPC) Contactor K2
  • DC Power Center (A63)
  • Primary Logic Card (PLC) 1
  • Primary Logic Card (PLC) 2
  • Primary Logic Card (PLC) 3
  • Electronic Module (EM) 3 (EM3)
  • Associate Wiring

Troubleshooting Tips:

Advisory Wire/Service Bulletin: None

Forum Articles/Infoservice/Newsletter: None

Quick Links:

Removal of the DC Power Center (DCPC) AMM 24-61-00-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the DC Power Center (DCPC) AMM 24-61-00-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the DC Power Center (DCPC) Primary Logic AMM 24-61-09-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the DC Power Center (DCPC) Primary Logic AMM 24-61-09-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the DC Power Center (DCPC)L-Series Contactor AMM 24-61-53-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the DC Power Center (DCPC)L-Series Contactor AMM 24-61-53-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Removal of the DC Power Center (DCPC) Electronic Modules AMM 24-61-65-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the DC Power Center (DCPC) Electronic Modules AMM 24-61-65-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Wire Repair - Maintenance Practices - ALL SPM 20-12-10-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. On the DC synoptic page, make sure ESS TRU 1 icon is green and is supplying 28 VDC.
  2. Get access to the DCPC Contactor K2.
  3. Disconnect contactor K2 connector P304.
  4. In the cockpit, turn the BATT MSTR SW to ON.
  5. Perform a check for 28 VDC as follows:

    From To Result
    P304-1 Ground
    P304-2 Ground

    1. If there is 28 VDC, go to step 8.
    2. If there is no 28 VDC, continue with next step.

  6. Disconnect EM3 connector P305. Perform a check for 28 VDC as follows:

    From To Result
    P305-23 Ground

    1. If there is 28 VDC, continue with next step.
    2. If there is no voltage, go to step 15.

  7. Perform a continuity check as follows:

    From To Result
    P305-25 P304-1

    1. If there is continuity, replace EM3 and do close out.
    2. If there is no continuity, go to step 15.

  8. Perform a continuity check as follows:

    From To Result
    P304-5 Ground
    P304-7 Ground

    1. If there is continuity, continue with next step.
    2. If there is no continuity, go to step 16.

  9. Remove PLC 1, PLC 2 and PLC 3.
  10. Perform a continuity check as follows:

    From To Result
    P304-6 Ground
    P304-8 Ground
    P304-22 Ground
    P304-3 Ground

    1. If there is continuity, go to step 15.
    2. If there is no continuity, continue with next step.

  11. Perform a continuity check as follows:

    From To Result
    P304-3 P110C-20
    P304-6 P110A-19
    P304-8 P110A-20
    P304-22 P110C-19
    P304-3 P210C-20
    P304-6 P210A-19
    P304-8 P210A-20
    P304-22 P210C-19
    P304-3 P310C-20
    P304-6 P310A-19
    P304-8 P310A-20
    P304-22 P310C-19

    1. If there is continuity, continue with next step.
    2. If there is no continuity, go to step 15.

  12. Install PLC 2 and PLC 3. Is the fault resolved.

    1. If YES, replace PLC 1 and do close out.
    2. If NO, install PLC 1 and remove PLC 2 and continue with next step.

  13. Replace PLC 2. Is the fault resolved?

    1. If YES, do close out.
    2. If NO, install PLC 2 and remove PLC 3 and continue with next step.

  14. Replace PLC 3. Is the fault resolved?

    1. If YES, do close out.
    2. If NO, reinstall PLC 3 and go to step 16.

  15. Replace contactor K2. Is the fault still present?

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

  16. Replace the DCPC.
  17. Do close out.

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