# SDR ASAA2023040642749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2023
- Submitted: April 10, 2023
- Operation: Air carrier
- Aircraft: [N943AK](https://openairdocs.org/aircraft/N943AK), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 44084
- Aircraft time: 2,320 hours, 649 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762003101
- Part serial: 017865
- Condition: Failed
- Location: E/E Bay
- Part time: 2,435 hours, 683 cycles
- Stage of operation: NR
- 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/ASAA2023040642749

## Discrepancy

RT FMC FAILED IN FLIGHT. COMPLETED QRH PROCEDURE NO RESTORE OCCURRED. CONTINUED SINGLE (LT FMC GOOD ) FMC OPERATION WITH FMC SOURCE SELECTOR SWITCH SET TO "BOTH ON L". GROUNDED - YES. REMOVED AND REPLACED FMCS COMPUTER IAW B737-9 AMM 34-61-01A.

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