# SDR DXTA2026010706440

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 2026
- Submitted: January 7, 2026
- Operation: Air carrier
- Aircraft: [N473QS](https://openairdocs.org/aircraft/N473QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500777
- Aircraft time: 1,823 hours, 1,404 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 7450LS00
- Part serial: 007178
- Condition: Faulty
- 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/DXTA2026010706440

## Discrepancy

EMERGENCY LIGHTS TURNED ON IN FLIGHT, PULSING ON AND OFF IN RANDOM INTERVALS. UPON LANDING, LIGHTS STAYED ON, BUT WOULD NOT TURN OFF IN THE ARM POSITION

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