# SDR DXTA2026020606786

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2026
- Submitted: February 6, 2026
- Operation: Air carrier
- Aircraft: [N427QS](https://openairdocs.org/aircraft/N427QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500484
- Aircraft time: 6,405 hours, 4,937 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 7450LS00
- Part serial: 007179
- Condition: Defective
- Location: Zone 200
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2026020606786

## Discrepancy

DURING FLIGHT EMER LIGHTS FLICKERING IN THE ON AND ARM POSITION.   REMOVED EMER BATT #1 AND #2 AND INSTALLED A CUS SUPP REPAIRED #1 AND #2 UNIT PERFORMED A SATISFACTORY OPS TEST OF THE EMERGENCY LIGHTS WITH NO DEFECTS NOTED ALL WORK PERFORMED IAW EMB-505 AMM 33-52-01-000-801-A/400-801-A.

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