# SDR ASAA2022121041096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 10, 2022
- Submitted: December 13, 2022
- Operation: Air carrier
- Aircraft: [N929AK](https://openairdocs.org/aircraft/N929AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 43322
- Aircraft time: 3,499 hours, 1,007 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 017073
- Condition: Failed
- Part time: 3,530 hours, 1,017 cycles
- Stage of operation: DE
- 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/ASAA2022121041096

## Discrepancy

DURING DESCENT WITH F/D SELECTED TO FO SIDE RECEIVED SINGLE FMC OPERATION MSG FO LOST COMMAND BARS, AND A/P WENT TO CWS PITCH AND ROLL VTK WAS DISPLAYED ON FO'S DISPLAY THIS LASTED FOR A COUPLE OF MINUTES THEN SYSTEM SEEMED TO RECOVER NORMAL OPS. GROUNDED - YES. REMOVED AND INSTALLED NEW #2 FMC COMPUTER REF B737-9 AMM 34-61-02/401. XLOADE4D SW FROM LEFT TO RT SIDE. ACCOMPLISHED INSTALL TEST PER STE F OF AMM 34-61-02. SYS OPS NML.

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