# SDR ASAA2022122741244

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2022
- Submitted: December 27, 2022
- Operation: Air carrier
- Aircraft: [N920AK](https://openairdocs.org/aircraft/N920AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44086
- Aircraft time: 4,500 hours, 1,343 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Flag
- Condition: False Indication
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022122741244

## Discrepancy

IN FLIGHT HAD 20 SECOND VTAK & MAP FLAGS #1 SIDE, RESOLVED ON ITS OWN WITHOUT MOVING FMC SWITCH. GROUNDED - YES. PERFORMED RESET OF BOTH FMC COMPUTERS OPS CHECK GOOD IN ACCORDANCE WITH B737-9 AMM 34-61-00-710-801.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.