# SDR UALA2012011800379

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 18, 2012
- Submitted: February 10, 2012
- Operation: Air carrier
- Aircraft: [N774UA](https://openairdocs.org/aircraft/N774UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26936
- Aircraft time: 64,989 hours, 12,356 cycles
- Engine: Pwa PW4077
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Display
- Part number: 4091900931
- Part serial: 78
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: IN
- 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/UALA2012011800379

## Discrepancy

CAPT'S ND DISPLAY IS INOPERATIVE.  REPLACED ND DISPLAY, NO HELP.  SUSPECT BAD DISPLAY SELECT PANEL.  PANEL IS ON AOG#4958 PART NUMBER 483-0002.  ALSO CPM-GG(M010) AND CPM-GG(M011) PER MAIN MESS 31-80221 NEEDS TO BE CHECKED.  REPLACED LOWER CENTER DISPLAY UNIT.  TESTS OKAY.

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