# SDR DXTA2023030681900

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 3, 2023
- Submitted: March 6, 2023
- Operation: Air carrier
- Aircraft: [N391QS](https://openairdocs.org/aircraft/N391QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500331
- Aircraft time: 6,291 hours, 4,880 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 74550LS00
- Part serial: 005655
- Condition: Discharged
- Location: Cockpit
- Part time: 1,477 hours
- Stage of operation: CR
- How discovered: V
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023030681900

## Discrepancy

CABIN EMERG LIGHT: IN FLIGHT WITH EMER LT SWITCH IN THE ARM POSITION, CABIN EMER LIGHTS FLASHING. *** CORRECTIVE ACTION *** REMOVED AND REPLACED BOTH FWD AND AFT EMERGENCY BATTERY WITH REFERENCE TO EMB-505 AMM 33-52-01, OPS CHECKS GOOD.

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