# SDR ASAA2017021919862

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 19, 2017
- Submitted: February 21, 2017
- Operation: Air carrier
- Aircraft: [N459AS](https://openairdocs.org/aircraft/N459AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36352
- Aircraft time: 11,752 hours, 3,894 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Warning Message
- Condition: False Activation
- Stage of operation: TX
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017021919862

## Discrepancy

DURING TAXI TO GATE, BOTH PFD DISPLAYED LDG ALT AMBER FAILURES FLAGS.  ACFT GROUNDED. CYCLED CIRCUIT BREAKERS FOR FMC 1 & 2 AND PERFORMED BITE CHECK OF FMC SYSTEM IAW FIM 34-61 TASK 801, FAULT MESSAGE CLEARED, AIRCRAFT APPROVED FOR RETURN TO SERVICE.

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