# SDR CALA2013041000212

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 10, 2013
- Submitted: April 10, 2013
- Operation: Air carrier
- Aircraft: [N12109](https://openairdocs.org/aircraft/N12109), registered now
- Make and model: Boeing 757224
- Aircraft serial: 27299
- Aircraft time: 71,940 hours, 17,798 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Part number: 21007
- Condition: Inoperative
- Location: Emergency Light
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013041000212

## Discrepancy

EMERGENCY EXIT LIGHTS ROW 31 CYCLE ON AND OFF DURING FLIGHT. FOUND AFT EMERGENCY LIGHT TEST SWITCH AT FAULT.  REMOVED & REPLACED SWITCH IAW WDM 33-51-15 & GROUND CHECKED GOOD IAW MM 33-51-00.

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