# SDR 3J7R2023020600001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2023
- Submitted: February 6, 2023
- Operation: Air carrier
- Filed by: [DC Jet Services, repair station 3J7R729D](https://openairdocs.org/faa-repair-station/3J7R729D/dc-jet-services.md) (OpenAirDocs)
- Aircraft: [N656QS](https://openairdocs.org/aircraft/N656QS), registered now
- Make and model: Cessna 560XL
- Registry model: [Cessna 560XL](https://openairdocs.org/model/cessna-560xl) (OpenAirDocs)
- Aircraft serial: 5605732
- Aircraft time: 13,027 hours, 9,893 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 99131
- Part serial: 2922
- Condition: Depleted
- Location: Zone 100
- Stage of operation: IN
- How discovered: V
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/3J7R2023020600001

## Discrepancy

THE AFT EMERGENCY LIGHTS ARE INOPERATIVE ON EMERGENCY BATTERY PACK. THEY DO OPERATE WHEN POWERED BY MAIN AIRCRAFT POWER.

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