# SDR ASAA2018070925336

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2018
- Submitted: July 11, 2018
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 18,811 hours, 6,213 cycles
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Display
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018070925336

## Discrepancy

AFTER LANDING BOTH CDU'S WENT MOMENTARILY BLANK (APPROX 2 SEC) THEN RETURNED TO NORMAL. GROUNDED - YES. NO HISTORY OF SAME 60 DAYS. LT & RT FMC FFR SHOWS A LOGGED GND FAULT OF LT FMC. CURRENT OPS CHECK OF BOTH FMC'S GOOD. REF AMM 34-61-00.

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