# SDR ASAA2021110436534

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 4, 2021
- Submitted: November 9, 2021
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 53,414 hours, 16,070 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 002817
- Condition: Faulty
- Location: E/E Rack E5-2
- Part time: 53,891 hours, 15,835 cycles
- Stage of operation: TX
- 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/ASAA2021110436534

## Discrepancy

FMC MESSAGE "SINGLE FMC OPERATION" AND VTR & MAP FLAGS ON F/O MFD DISPLAY PRIOR TO ENGINE START. GROUNDED - YES. REMOVED AND REPLACED #2 FMC. SYSTEM CHECKS GOOD IAW B737-800 AMM 34-61-02-000-801,34-61-02-400-801 AND 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.