03/10/21
Message Overview:
Message Description:
Remote Data Concentrator (RDC) buses are reported inoperative by Data Concentrator Unit (DCU) channel A and B.
Possible Causes:
- Remote Data Concentrator (RDC) (A13)
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Quick Links:
| Removal of the Remote Data Concentrator (RDC) | AMM 31-41-05-000-802 |
| Installation of the Remote Data Concentrator (RDC) | AMM 31-41-05-400-802 |
Troubleshooting Recommendations:
- Reset EICAS RDC A Circuit Breaker CB1-D2 and EICAS RDC B Circuit Breaker CB2-D2. Is the fault message still present?
- If NO, do close out.
- If YES, continue with next step.
- Re-rack RDC (A13). Is the fault message still present?
- If NO, do close out.
- If YES, continue with next step.
- Replace RDC (A13).
- Do close out.