# SDR UALA2012040502114

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2012
- Submitted: June 5, 2012
- Operation: Air carrier
- Aircraft: [N780UA](https://openairdocs.org/aircraft/N780UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26944
- Aircraft time: 64,121 hours, 11,378 cycles
- Engine: Pwa PW4077
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Display
- Part number: 4091900931
- Part serial: 337
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2012040502114

## Discrepancy

DISPLAY UNIT INOPERATIVE.  FOUND F/O NAV DISPLAY UNIT BLANKED OUT.  RESET CIRCUIT BREAKER, NO HELP.   REPLACED LOWER I DISPLAY UNIT.  OPS CHECKED OKAY.

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