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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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04/07/20

Message Overview:

Fault Message:

DCPC EBBC CONTACTOR-K6 FAILED

Fault Code:

2460421DCP

Associated CAS:

ELEC SYS FAULT
(Advisory)

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:

  • Emergency Bus Breaker Contactor (EBBC) (K6)
  • Primary Logic Card (PLC) 1
  • Primary Logic Card (PLC) 2
  • Primary Logic Card (PLC) 3
  • DC Power Center (DCPC) (A63)

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) KC-Series Relay AMM 24-61-25-000-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
Installation of the DC Power Center (DCPC) KC-Series Relay AMM 24-61-25-400-801 [ Global Express ]  [ G5000 ]  [ Global XRS ]
DCPC assembly CMM 24-61-02 [ Global Express ]  [ G5000 ]  [ Global XRS ]

Troubleshooting Recommendations:

  1. Disconnect the avionics battery.
  2. Remove PLC 1, PLC 2 and PLC 3.
  3. Disconnect and identify K6-B3.
  4. Do a continuity check as follows:

    From To Result
    K6-B3 Ground

    1. If there is continuity, continue with next step.
    2. If there is no continuity, replace DCPC.

  5. Disconnect K6-B2 and X2 and identify.
  6. Do a continuity check as follows:

    From To Result
    K6-B2 Ground
    K6-X2 Ground

    1. If there is no continuity, continue with next step.
    2. If there is continuity, replace DCPC.

  7. Do a continuity check as follows:

    From To Result
    K6-X2 P110B-8
    K6-X2 P210B-8
    K6-X2 P310B-8
    K6-B2 P110B-35
    K6-B2 P210B-35
    K6-B2 P310B-35

    1. If there is continuity, continue with next step.
    2. If there in no continuity, replace the DCPC.
      CAUTION: Make sure that connection X1 is still connected to contactor K6.

  8. Reconnect Avionic battery.
  9. Do a check for 28 VDC as follows:

    From

    		 To Result
    K6-X1 Ground

    1. If there is 28 VDC, continue with next step.
    2. If there is no 28 VDC, replace DCPC.

  10. Reconnect wires on contactor K6.
  11. Install PLC2 and PLC3. Is the fault resolved?

    1. If YES, replace PLC1.
    2. If NO, install PLC1 and remove PLC2.

  12. Is the fault resolved?

    1. If YES, replace PLC2.
    2. If NO, install PLC2 and remove PLC3.

  13. Is the fault resolved?

    1. If YES, replace PLC3.
    2. If NO replace K6.

  14. Do close out.

dcpc

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