# SDR DXTA2023122610416

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2023
- Submitted: December 26, 2023
- Operation: Air carrier
- Aircraft: [N322QS](https://openairdocs.org/aircraft/N322QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500383
- Aircraft time: 6,125 hours, 4,866 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 740LS00
- Part serial: 006677
- Condition: Failed
- Location: Unknown
- Stage of operation: TX
- 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/DXTA2023122610416

## Discrepancy

EMERGENCY LIGHTS COME ON WHEN AN ARM POSITION AND STAY ON.  PERFORMED EMER LT BATTERY TOP CHARGE IN REF TO FORM TC-505-33-200403. OPS CHECK OF EMER LT SWITCH IN ARM MODE FAILED. R+R FWD #1 EMER BATT + AFT #2 EMER BATT IAW  AMM 33-52-01. OPS CHECK OF EMER LT SWITCH IN ARM MODE GOOD & EMER BATTERIES GOOD.

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