06/28/19
Message Overview:
Fault Message:
DCPC SPDA DC BUS 1 FEEDER CARD A2
Fault Code:
2460402DCP
Associated CAS:
| 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:
Voltage or trip status of any programmable Solid-State Power Controller (SSPC) on the Feeder Card is detected not in commanded state. Detected at power-up or continuous Built-In Test (BIT).
Possible Causes:
- DC Power Center (DCPC) (A63)
- Secondary-Power Distribution Assembly (SPDA) 1 (A13)
- DC Bus 1 Feeder Card
- Right Microprocessor Card (A20)
- Battery/Ram-Air-Turbine (BATT/RAT) Card
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
The following are the main functions of DCPC SPDA DC Bus 1 Feeder card:
- Provides for power switching and load protection for four SPDA feeders on DC bus 1
- Monitors SSPC status
- Monitors DC bus voltage status
- Monitors fuse and diode status on DC bus 1 (EM 1)
Quick Links:
| Access of Signboard Menu in EMS CDU | AMM 24-00-00-946-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| 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) Fault-Tolerant Microprocessor |
AMM 24-61-05-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the DC Power Center (DCPC) Fault-Tolerant Microprocessor |
AMM 24-61-05-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the DC Power Center (DCPC) Battery/Ram-Air-Turbine Interface Unit |
AMM 24-61-33-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the DC Power Center (DCPC) Battery/Ram-Air-Turbine Interface Unit |
AMM 24-61-33-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Removal of the DC Power Center (DCPC) Secondary-Power Distribution Assembly (SPDA) Feeder |
AMM 24-61-37-000-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Installation of the DC Power Center (DCPC) Secondary-Power Distribution Assembly (SPDA) Feeder |
AMM 24-61-37-400-801 [ Global Express ] [ G5000 ] [ Global XRS ] |
| Wire Repair - Maintenance Practices - ALL | SPM 20-12-10-02 [ Global Express ] [ G5000 ] [ Global XRS ] |
Troubleshooting Recommendations:
- Access the Signboard menu on the EMS CDU as per AMM TASK 24-00-00-946-801. Press on the “TEST” button on EMS CDU. On the line “ASSEMBLY”, make a selection of “DCPC”. On the line “SWAP MICROPROCESSORS” make selection of swapping from one side to the other. Is the fault resolved?
- If YES, replace the now inactive microprocessor and do close out.
- If NO, continue with next step.
EMSCDU - Signboard Test Menu
- Swap SPDA DC BUS 1 FEEDER Card with SPDA DC BUS 2 FEEDER Card. Did the fault follow?
- If YES, replace SPDA DC BUS 1 FEEDER Card and do close out.
- If NO, continue with next step.
- Verify the voltage references input of the SPDA DC BUS 1 FEEDER Card. Remove the SPDA DC BUS 1 FEEDER Card, the Right Microprocessor and the BATT/RAT Interface Card from the DCPC. Perform a continuity check as follows:
From To Result P131A-13/14 Ground P131C-13/14 Ground P131C-16 Ground - If there is continuity, replace DCPC and do close out.
- If there is no continuity, continue with next step.
DCPC SPDA DC BUS 1 FEEDER CARD A2
- Perform a continuity check as follows:
From To Result P131A-13/14 P410-38/39 P131C-13/14 P3-38/39 P131C-16 P410A-46 - If there is no continuity, replace DCPC and do close out.
- If there is continuity, continue with next step.
- Swap the right Microprocessor with the left Microprocessor. Is the fault resolved?
- If YES, replace right Microprocessor and do close out.
- If NO, replace BATT/RAT interface card and do close out.
- Do close out.