# SDR SIMA201004610

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2010
- Submitted: February 15, 2010
- Operation: Air carrier
- Aircraft: N720AE
- Make and model: Emb EMB-135LR
- Registry model: [EMB EMB-135LR](https://openairdocs.org/model/embraer-emb-135lr) (OpenAirDocs)
- Aircraft serial: 145279
- Aircraft time: 21,406 hours, 18,892 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20131A
- Part serial: 69075
- Condition: Discharged
- Location: Cabin
- Part time: 3,240 hours, 2,714 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201004610

## Discrepancy

DURING MAINTENANCE CHECK FOUND THAT ALL OF THE FORWARD CABIN EMERGENCY LIGHTS FAILED TO ILLUMINATE.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED THE NUMBER 1 EMERGENCY BATTERY AND CHARGER ASSEMBLY IAW AEWC 33-700-19.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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