# SDR ASAA2015123114600

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2015
- Submitted: January 4, 2016
- Operation: Air carrier
- Aircraft: [N483AS](https://openairdocs.org/aircraft/N483AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36350
- Aircraft time: 1,179 hours, 390 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Stage of operation: CR
- 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/ASAA2015123114600

## Discrepancy

AT FL350 VTK ILLUMINATED ON NR 1 MAP DISPLAY AND BOTH FMC'S WENT BLANK THEN TO MENU. AFTER APPROXIMATELY 1 MINUTE SYS WENT BACK TO NORMAL AND OPERATED NORMALLY. ACFT GROUNDED.  LEFT FMC FAULT LOGGED IN FLT, LEG 6 ONLY. ACCOMPLISHED LT FMC GROUND VERIFICATION TEST REF AMM 34-61-00, TEST PASSED.

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