# SDR ASAA2019112513432

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2019
- Submitted: November 26, 2019
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 36,936 hours, 10,821 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Location: Right
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019112513432

## Discrepancy

AFTER ENGINE START, RIGHT FMC FAILED, RECOVERED AFTER APPROX 90 SECONDS. GROUNDED - YES. ACCOMPLISHED BITE ON RIGHT FMC. FOUND "WATCHDOG TIMER" MSG. PERFORMED BIT CHECK ON GPWC. NO FAULTS NOTED. OPS CHECK GOOD IAW B737-800 FIM 34-46 TASK 854.

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