# SDR SIMA201016504

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2010
- Submitted: June 14, 2010
- Operation: Air carrier
- Aircraft: [N941LT](https://openairdocs.org/aircraft/N941LT), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500926
- Aircraft time: 12,740 hours, 11,262 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 110049
- Part serial: 19411
- Condition: Failed
- Location: Cabin
- Part time: 12,739 hours, 11,262 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201016504

## Discrepancy

FOR FLIGHT 2853 DURING MAINTENANCE CHECK FOUND THE EMERGENCY LIGHTS FROM NR  2 BATTERY DIM AND DRAINING.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED THE NR  2 EMERGENCY POWER SUPPLY UNIT CHARGER IAW W/C 33-700-19 THE OPERATIONAL CHECK WAS GOOD IAW W/C 33-700-17.  THE AIRCRAFT WAS RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.