# SDR UALA2009121503876

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2009
- Submitted: December 16, 2009
- Operation: Air carrier
- Aircraft: N127UA
- Make and model: Boeing 747422
- Aircraft serial: 28813
- Aircraft time: 41,723 hours, 4,982 cycles
- Engine: Pwa PW4056
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 20131A
- Condition: Faulty
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009121503876

## Discrepancy

EMERGENCY EXIT LIGHT BY DOOR 2R COMES ON AND OFF.   REPLACED EMERGENCY LIGHT POWER SUPPLY ABOVE DR-2R, TESTS OKAY.

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