# SDR DXTA2026030907141

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2026
- Submitted: March 9, 2026
- Operation: Air carrier
- Aircraft: [N741QS](https://openairdocs.org/aircraft/N741QS), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20691
- Aircraft time: 9,444 hours, 5,503 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulted
- Location: Zone 200
- Stage of operation: IN
- 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/DXTA2026030907141

## Discrepancy

EXTERIOR EMERGENCY LIGHT NEXT TO AIR STAIR DOOR REMAINS ON AFTER EMER LIGHT SWITCH IS OFF AND AIRCRAFT IS POWERED DOWN WITH BATTERIES DISCONNECTED.   REMOVED AND REPLACED FWD EMERGENCY BATTERY PACK REF CHALLENGER 350 AMM TASK 33-51-17-000-801 OPERATIONAL TEST GOOD. P/N OFF: 2013-1A P/N ON: 2013-1A S/N OFF: 514605 S/N ON: 499244

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