# SDR DXTA2026082109370

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2026
- Submitted: August 21, 2026
- Operation: Air carrier
- Aircraft: [N410QS](https://openairdocs.org/aircraft/N410QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500427
- Aircraft time: 7,945 hours, 6,160 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 7450LS00
- Part serial: 005321
- Condition: Faulted
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026082109370

## Discrepancy

DURING CRUISE FLIGHT OVERHEAD EMERGENCY LIGHTS IN CABIN ILLUMINATED. THE FIRST TIME THE LIGHTS STAYED ON FOR 5 MINUTES. THE SECOND TIME THEY STAYED ON FOR TWO MINUTES.  REMOVED FAULTY FORWARD EMERGENCY LIGHT BATTERY. REMOVED FAULTY REAR EMERGENCY LIGHT BATTERY. INSTALLED REPAIRED FORWARD EMERGENCY LIGHT BATTERY IAW AMM 33-52-01-400-801-A. PERFORMED EMERGENCY BATTERY OPS TEST AMM 33-52-01-710-801-A. OPS CHKD GOOD. NO FAULTS NOTED.

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