# SDR DALA1010965521

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2010
- Submitted: May 24, 2010
- Operation: Air carrier
- Aircraft: N521US
- Make and model: Boeing 757251
- Aircraft serial: 23209
- Aircraft time: 75,405 hours, 31,224 cycles
- Engine: Pwa PW2037
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Switch
- Condition: Faulty
- Location: Cabin
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA1010965521

## Discrepancy

FLIGHT CREW REPORTS THE CABIN EMERGENCY LIGHTS CYCLE ON AND OFF WHEN ARMED.  MX REPLACED THE F/A ARMING SWITCH.  OPS CHECK WAS GOOD.

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