# SDR ASAA2023082844835

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2023
- Submitted: August 30, 2023
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 54,538 hours, 16,088 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023082844835

## Discrepancy

FMC VNAV INFORMATION BLANKED ON FMC SCREEN DID NOT RETURN. GROUNDED - YES. COULD NOT DUPLICATE ANY FAULT. EXPANDED BITE LOGGED NO FAULTS. RESET BOTH FMC'S. OP CK NORMAL. REF B737-800 FIM 34-61 TASKS 837 & 801.

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