# SDR 2007UALA02783

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 22, 2007
- Submitted: July 24, 2007
- Operation: Air carrier
- Aircraft: [N775UA](https://openairdocs.org/aircraft/N775UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26947
- Aircraft time: 47,279 hours, 8,962 cycles
- Engine: Pwa PW4077
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Inverter
- Condition: Failed
- 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/2007UALA02783

## Discrepancy

THE 2E BOTH EEL LIGHTS INOPERATIVE.   [08-14-07]  TROUBLESHOOTING FOUND INVERTER FAILED, INSTALLED SERVICEABLE REF WDG25-25-21 SHT6.  OPS CHECKED, SYS OPS NORMAL. RETURNED AC BACK TO NORM, OK FOR SERVICE.

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