02/24/21
Message Overview:
Message Name:
NO DATALINK OUTPUT
Message Code:
B3-438887
Associated CAS:
| Reporting LRU: | RIU 1 DATALINK |
| System Description: | 23-22-00 |
| Schematic Diagram: | None |
| Wiring Diagram: | None |
Message Description:
Data Link output is missing at L IOC (L-RIU-11) and R IOC (L-RIU-12) and at least 1 of [L CDU or R CDU].
Possible Causes:
- No Power
- Datalink Failure
- Associated Wiring
Troubleshooting Tips:
Advisory Wire/Service Bulletin: None
Forum Articles/Infoservice/Newsletter: None
Fault Confirmation Procedure:
- Message# = 1
- Comp Id = A017
- Fault Logged = AIR,TAXI
- Status = FAILED/WIRING
- {Term Definitions}
- DLNK-1 XX 350 01 ABSN XXXX-XXXX XXXX-XXXX XXXX-XXXX 350: (A) NO IOC XX IN
- RIU1-1 1X 350 01 ABSN XXXX-XXXX XXXX-XXXX XXXX-XXXX 350: (A) NO IOC 1X IN;
- CDU1-9 1X 350 01 EXCT XXXX-XXXX XXXX-XXTX XXXX-XXXX 350: 18;NO L-RIU-11 IN RX-2 PIN
- CDU2-9 2X 350 10 EXCT XXXX-XXXX XXXX-XXTX XXXX-XXXX 350: 18;L-RIU-12 PIN 68,69
Quick Links:
| Standard Practices - Replace Wiring | SPM 20-12-00-02 |
| Standard Practices - Wire Repair | SPM 20-12-10-02 |
Troubleshooting Recommendations:
- Suspect power is off or datalink failure.