# SDR DXTA2025011701990

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 15, 2025
- Submitted: January 17, 2025
- Operation: Air carrier
- Aircraft: [N442QS](https://openairdocs.org/aircraft/N442QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500565
- Aircraft time: 4,111 hours, 3,182 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 7450LS00
- Part serial: 006569
- Condition: Malfunctioned
- Location: Zone 200
- Stage of operation: CL
- 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/DXTA2025011701990

## Discrepancy

EMERG LIGHT SWITCH: AFTER TAKEOFF WE NOTICED ALL OF THE EMERGENCY LIGHTS ON WITH THE SWITCH IN THE ARM POSITION. THE LIGHTS STAYED ON UNTIL THE SWITCH WAS TURNED OFF UPON SHUTDOWN. CORRECTIVE ACTION: REPLACED EMERGENCY BATTERY. OPS CHECK GOOD. PHENOM 300 AMM 33-52-01-400-801-A

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