# SDR UALA2013060503905

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2013
- Submitted: August 21, 2013
- Operation: Air carrier
- Aircraft: [N220UA](https://openairdocs.org/aircraft/N220UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30223
- Aircraft time: 51,125 hours, 6,235 cycles
- Engine: Pwa PW4090
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Display
- Part number: 4091900941
- Part serial: 698
- Condition: Failed
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013060503905

## Discrepancy

FIRST OFFICER`S OTBD DISPLAY SCREEN BLACKED OUT, HAS BLACK AND RED STRIPES. TO ALTERNATE DISPLAY CONTROL DISPLAY CAME BACK FOR A MINUTE THEN BLACK AGAIN.  RT OTBD DISPLAY BLANK WITH MESSAGE 31-80162.  REPLACED RT OTBD DISPLAY UNIT IAW MM.  INSTALLATION TEST COMPLETED.

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