# SDR UALA2013011700308

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 17, 2013
- Submitted: February 8, 2013
- Operation: Air carrier
- Aircraft: N580UA
- Make and model: Boeing 757222
- Aircraft serial: 26698
- Aircraft time: 64,934 hours, 22,810 cycles
- Engine: Pwa PW2037
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 20121
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013011700308

## Discrepancy

EMERGENCY LIGHT INOPERATIVE AT R4 DOOR.  REPLACED EMERGENCY LIGHT POWER SUPPLY M10817 REF AMM, TESTED OKAY.

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