# SDR ASAA2023101645687

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2023
- Submitted: October 17, 2023
- Operation: Air carrier
- Aircraft: [N971AK](https://openairdocs.org/aircraft/N971AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43339
- Aircraft time: 6,723 hours, 1,935 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023101645687

## Discrepancy

MOMENTARY LEFT VTK MSG AP DISCONNECTED AT FL 330, REVERTED TO CWS SYSTEM RESOLVED ITSELF. GROUNDED - YES. PERFORMED B737-9 IFIM 31-00-00-810-803. FOUND NO ACTIVE CORRELATED MESSAGE.

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