# SDR ASAA2022011737197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2022
- Submitted: January 21, 2022
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 29,248 hours, 9,231 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 017345
- Condition: Intermittent
- Location: E/E Shelf E5-2
- Part time: 1,174 hours, 386 cycles
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022011737197

## Discrepancy

FMC P/RST AMBER LIGHT ILLUMINATES WITHOUT ANY FMC MESSAGES. GROUNDED - YES. INSPECTED AND FOUND LEFT FMC COMPUTER INTERMITTENT FAULTY. RMVD AND INSTALLED NEW LEFT FMC COMPUTER IAW B737-900 AMM 34-61-02/401. XLOADED SW AND ADJUSTED PERFORMANCE FACTOR. PERFORMED SYS OPS TEST REF B737-900 AMM 34-61-00.

---
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.