# SDR IPXA10559568

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 30, 2010
- Submitted: April 30, 2010
- Operation: Air carrier
- Aircraft: [N418UP](https://openairdocs.org/aircraft/N418UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 23905
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Guard
- Condition: Malfunctioned
- 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/IPXA10559568

## Discrepancy

WHEN CLOSING EMERGENCY LIGHT TOGGLE SWITCH TO ARM EMERGENCY LIGHTS TO GET SWITCH COVER CAUSES THE EMERGENCY LIGHTS SWITCH TO GO OFF. NOT THE ARMED POSITION. ALSO CAUSING EMERGENCY LIGHTS EICAS MESSAGE TO APPEAR, WE LEFT TOGGLE SWITCH COVER OPEN.   SWITCH GUARD ACTIVATION CLIP WAS NOT ENGAGED TO SWITCH RE-ENGAGED CLIP AND SWITCH OPERATES NORMAL. ACFT OK FOR SERVICE.

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