# SDR DALA2017112908380

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 16, 2017
- Submitted: November 29, 2017
- Operation: Air carrier
- Aircraft: [N896AT](https://openairdocs.org/aircraft/N896AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55048
- Aircraft time: 35,953 hours, 24,663 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fms
- Condition: Malfunctioned
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2017112908380

## Discrepancy

THE CREW DECLARED AN EMERGENCY ON APPROACH AFTER THE LOSS OF FMS GUIDED FLIGHT PLAN.  MAINTENANCE FOUND BOTH VIA NR 1 & 2 DATA BUSS FAULT CODES 344343 AND 344344.  REPLACED BOTH VIA NR 1 AND 2 IN ACCORDANCE WITH THE AMM. ALL TESTS NORMAL AND THE AIRCRAFT HAS RETURNED TO SERVICE.

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