02/10/20
Message Overview:
Message Name:
NO RB-RIU-6 BUS OUTPUT
Message Code:
B3-007819
Associated CAS:
| Reporting LRU: | RIU 2 |
| System Description: | 23-00-00 |
| Schematic Diagram: | None |
| Wiring Diagram: | None |
Message Description:
RB-RIU-6 bus absent at 2-of (DCU, R-PFD, R-MFD).
Possible Causes:
- RB Radio Interface Unit-6 (RIU 2) (A18)
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Fault Confirmation Procedure:
- Message# = 12
- Comp Id = A018
- Fault Logged = AIR,TAXI
- Status = FAILED/WIRING
- {Term Definitions}
- DCU1-29 1X 357 01 EXCT XXXX-XXXT XXXX-XXXX XXXX-XXXX 357: 25;RB-RIU-6 BUS INOP
- PFD2-36 2X 351 NA EXCT XXXX-TXXX XXXX-XXXX XXXX-XXXX 351: 28;NO RB-RIU-6 INPUT
- MFD2-37 2X 351 NA EXCT XXXX-TXXX XXXX-XXXX XXXX-XXXX 351: 28;NO RB-RIU-6 INPUT
Quick Links:
| Removal of the Radio Interface Unit (RIU) | AMM 23-51-21-000-801 |
| Installation of the Radio Interface Unit (RIU) | AMM 23-51-21-400-801 |
| Standard Practices - Replace Wiring | SPM 20-12-00-02 |
| Standard Practices - Wire Repair | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- Suspect failed RB-RIU-6 output or wiring.