# SDR ASAA2017022119897

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2017
- Submitted: February 23, 2017
- Operation: Air carrier
- Aircraft: [N419AS](https://openairdocs.org/aircraft/N419AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41734
- Aircraft time: 15,599 hours, 5,119 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Intermittent
- Location: Left And Right
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017022119897

## Discrepancy

LOST BOTH FMC DURING CRUISE, FOR A FEW MINUTES THEN CAME BACK. LOST BOTH AT THREE DIFFERENT TIMES AND EACH TIME CAME BACK AFTER A FEW MINUTES.  ACFT GROUNDED. ACCOMPLISHED FAULT REVIEW ON FMC, APPEARS TO HAVE HAD POWER INTERRUPTIONS. CURRENT STATUS IS GOOD, COULD NOT DUPLICATE PROBLEM ON GROUND. REPLACED THE NR 1 AND 2 FMC TRANSFER RELAYS AS A PRECAUTION. ALL OPS NORMAL IAW AMM 34-61-04-000-801.

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