# SDR CALA2010061700280

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2010
- Submitted: June 17, 2010
- Operation: Air carrier
- Aircraft: [N75861](https://openairdocs.org/aircraft/N75861), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32585
- Aircraft time: 29,320 hours, 9,779 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Part number: 21007
- Condition: Shorted
- Location: Emergency Light
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2010061700280

## Discrepancy

UNCOMMANDED ACTIVATION OF EMERGENCY LIGHTS. UNABLE TO RUN OFF OR RESET.  LOCATED & REPLACED SHORTED ZONE 2 TEST SWITCH IAW IPC 33-51-11-05-15 & ASSOCIATED WDM.  OPS CHECK GOOD.

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