# SDR 2007UALA03724

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 14, 2007
- Submitted: September 21, 2007
- Operation: Air carrier
- Aircraft: N520UA
- Make and model: Boeing 757222
- Aircraft serial: 24890
- Aircraft time: 56,163 hours, 21,046 cycles
- Engine: Pwa PW2037
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/2007UALA03724

## Discrepancy

R-1 DOOR EXTERNAL EMERGENCY LIGHT IS INOP.   10-9-07   TROUBLESHOOTING THE SYSTEM, FOUND BROKEN GROUND JIFFY SPLICE WIRE , REPAIRED SPLICE ON DOOR 4L EMERGENCY LIGHT TEST SWITCH,  ALSO REPLACED BATTERY PACK DOOR 4L FWD CEILING.

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