# SDR ASAA2021042234635

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 22, 2021
- Submitted: April 23, 2021
- Operation: Air carrier
- Aircraft: [N469AS](https://openairdocs.org/aircraft/N469AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41702
- Aircraft time: 25,381 hours, 8,207 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- 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/ASAA2021042234635

## Discrepancy

ON ARRIVAL AT 2500 AGL FO SIDE LOST FMC W/ ASSOCIATED VTK FOR 20 SECONDS BEFORE RESETTING BACK TO OPERATIONAL. THEN ON TAXI IN BOTH CA & FO LOST L & R FMC INFO W/BOTH ASSOCIATED VTK DISPLAYED FOR 20 SECONDS BEFORE RESETTING BACK TO NORMAL (OPERATIONAL). GROUNDED - YES. FMC SHOWS SOFTWARE RESET. ACCOMPLISHED B737-900 FIM 34-61 TASK 807. OPS TEST NORMAL.

---
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.