# SDR ASAA2017041020422

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2017
- Submitted: April 12, 2017
- Operation: Air carrier
- Aircraft: [N435AS](https://openairdocs.org/aircraft/N435AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43292
- Aircraft time: 13,827 hours, 4,561 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 008977
- Condition: Malfunctioned
- Location: Captain'S
- Part time: 10,403 hours, 3,476 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017041020422

## Discrepancy

CAPTAIN'S FMC HAS INTERMITTENT VTK.  ACFT GROUNDED.  LEFT AND RIGHT FMC INFLIGHT FAULT REVIEW SHOWS NO FAULTS LAST 10 FLIGHTS. DUE TO HISTORY IAW  AMM 34-61-02, REMOVED/REPLACED THE NR 1 FMC.  CROSS-LOADED SOFTWARE AND OPS NORMAL IAW AMM 34-61-02. GROUND VERIFICATION TEST GOOD.

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