# SDR DXTA2026071708840

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2026
- Submitted: July 18, 2026
- Operation: Air carrier
- Aircraft: [N434QS](https://openairdocs.org/aircraft/N434QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500518
- Aircraft time: 7,311 hours, 5,679 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 74S0L500
- Part serial: 006095
- Condition: Unknown
- Location: Zone 200
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026071708840

## Discrepancy

EMERGENCY LIGHTS STAY ON WHEN EMERGENCY LIGHT ARE IN ARM POSITION. SHUT AIRPLANE DOWN, DISCONNECTED GPU. TURNED BATTERIES BACK ON, STARTED AN ENGINE, SAME ISSUE, EMERGENCY LIGHTS STAYING ON WHEN SWITCH IS IN ARM POSITION. TROUBLESHOOT AND FOUND NO DISCREMPENCIES. REPLACED 2 EMERGENCY BATTERIES PER MCC OPS CHECKED GOOD

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