# SDR UALA2011062903199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 26, 2011
- Submitted: July 21, 2011
- Operation: Air carrier
- Aircraft: [N197UA](https://openairdocs.org/aircraft/N197UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 26901
- Aircraft time: 56,484 hours, 6,743 cycles
- Engine: Pwa PW4056
- System (JASC): [3110 · Instrument Panel](https://openairdocs.org/jasc/3110)
- Part: Switch
- Condition: Faulted
- Location: Instrument Panel
- 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/UALA2011062903199

## Discrepancy

F/O NAV DISPLAY OUTBOARD LIGHT SWITCH HAS A SHORT.  CHECKED SWITCH CONFIRMED NO ELECTRICAL SHORTS EXIST AND SWITCH FUNCTIONS NORMAL.   REPLACED SWITCH R2270 AND NAV DISPLAY, ALL CHECKED OKAY.

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