# SDR DXTA2023071991270

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 19, 2023
- Submitted: July 19, 2023
- Operation: Air carrier
- Aircraft: [N429QS](https://openairdocs.org/aircraft/N429QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500486
- Aircraft time: 4,227 hours, 3,235 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 6401359500
- Part serial: 006020
- Condition: Defective
- Location: Zone 100
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023071991270

## Discrepancy

EMERG EXIT SIGN/LIGHT STARTED FLICKERING IN CRUISE ONE HR INTO THE FLIGHT.  DURING THE CHARGE PART OF TASK CARD TC·E50·33-1001 THE EMER LIGHTS WOULD NOT EXTINGUISH LN ARM. GAINED ACCESS TO BOTH #LAND #L BATTERIES AND TROUBELSHOT TO THE #L BATTERY. REMOVED ANO REPLACED THE #L BATTERY ALL OPS CHECKS SATISFACTORY. CLOSED ALL ACCESS. REF EMBSOS AMM 33·52·01 AND EMBSOS FIM 33-50-00

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