# SDR DXTA2024011210596

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2024
- Submitted: January 12, 2024
- Operation: Air carrier
- Aircraft: [N800QS](https://openairdocs.org/aircraft/N800QS), registered now
- Make and model: Textrn TEXTRON700
- Aircraft serial: 7000022
- Aircraft time: 3,673 hours, 2,193 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: CBS281
- Part serial: 1934M
- Condition: Failed
- Location: Unknown
- Stage of operation: TX
- How discovered: C
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2024011210596

## Discrepancy

EMERGENCY LIGHTS DO NOT COME ON IN WHEN SWITCH IS SELECTED TO THE "ON" POSITION.  REMOVED DEFECTIVE #4 EMERGENCY BATTERY P/N:CBS28-1, S/N:1934M AND INSTALLED A CUSTOMER SUPPLIED REPAIRED EMERGENCY BATTERY P/N:CBS28-1, S/N:6000M. PERFORMED SATISFACTORY OPERATIONAL CHECK. WORK PERFORMED IN REF WITH AMM 33-50-05.

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