# SDR ASAA2017071821421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 18, 2017
- Submitted: July 21, 2017
- Operation: Air carrier
- Aircraft: [N506AS](https://openairdocs.org/aircraft/N506AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35690
- Aircraft time: 34,646 hours, 10,586 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 002783
- Condition: Failed
- Location: Left
- Part time: 39,079 hours, 11,625 cycles
- Stage of operation: NR
- 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/ASAA2017071821421

## Discrepancy

LEFT FMC FAILED. PERFORMED QRH PROCEDURE, DID NOT RECOVER LEFT FMC. ACFT GROUNDED.  CONFIRMED FAULT,  LT FMC INOPERATIVE.  REPLACED LT FMC IAW AMM 34-61-02, CROSS-LOADED ALL SOFTWARE IAW AMM 34-61-00-201 & FMCS PERFORMANCE FACTORS IAW AMM 34-61-00-800-801, OPS CHECKED NORMAL IAW AMM 34-61-00.

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