# SDR DXTA2023112710144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 24, 2023
- Submitted: November 27, 2023
- Operation: Air carrier
- Aircraft: [N431QS](https://openairdocs.org/aircraft/N431QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500507
- Aircraft time: 4,265 hours, 3,339 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 7450LS00
- Part serial: 006374
- Condition: Defective
- Location: Unknown
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2023112710144

## Discrepancy

CABIN EMERG LIGHT: AFTER 1 HOUR IN CRUISE, CABIN EMERGENCY LIGHTS BEGAN TO FLASH AND EVENTUALLY REMAINED ON WITH SWITCH IN ARM POSITION///REMOVED AND REPLACED #1 & #2 EMERGENCY BATTERIES.  IAW PHENOM 300 AMM 33-52-01.  OPS CHECK GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.