# SDR UALA2011021700823

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 17, 2011
- Submitted: March 10, 2011
- Operation: Air carrier
- Aircraft: [N224UA](https://openairdocs.org/aircraft/N224UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30225
- Aircraft time: 37,277 hours, 4,560 cycles
- Engine: Pwa PW4090
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Emergency Lights
- 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/UALA2011021700823

## Discrepancy

EMERGENCY LIGHTS INOP AT DOOR 3L.  1 EXTERIOR LIGHT INOP AND BOTH INTERIOR LIGHTS INOP FWD AND AFT OF THE MED.  REPLACED POWER SUPPLIES, TESTS GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.