# SDR DXTA2021051742140

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 16, 2021
- Submitted: May 18, 2021
- Operation: Air carrier
- Aircraft: [N439QS](https://openairdocs.org/aircraft/N439QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500542
- Aircraft time: 896 hours, 660 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 6450LS00
- Condition: Defective
- Location: Emergency Lights
- Stage of operation: CR
- 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/DXTA2021051742140

## Discrepancy

CABIN EMERG LIGHT: IN THE ARM POSITION THE CABIN EMERGENCY LIGHTS STAY ILLUMINATED. HALF WAY THROUGH OUR FLIGHT THEY STARTED PULSATING.////SIGN-OFF////REMOVED AND REPLACE EMERGENCY BATTERY PACKS.  IAW EMB-505 AMM 33-52-01-01-010.  OPS CHECK GOOD.

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