# SDR ASOA20150512048

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2015
- Submitted: May 13, 2015
- Operation: Air carrier
- Aircraft: [N16525](https://openairdocs.org/aircraft/N16525), registered now
- Make and model: Emb EMB-135LR
- Registry model: [EMB EMB-135LR](https://openairdocs.org/model/embraer-emb-135lr) (OpenAirDocs)
- Aircraft serial: 145403
- Aircraft time: 22,185 hours, 20,986 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Part serial: 92159
- Condition: Discharged
- Location: Emergency Lights
- Part time: 21,588 hours, 16,111 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/ASOA20150512048

## Discrepancy

DURING A-CHECK INSPECTION NUMEROUS EMERGENCY LIGHTS IN THE CABIN FAILED TO ILLUMINATE.  MAINTENANCE R & R THE NR 1 EMERGENCY LIGHT BATTERY PACK, OPERATIONALLY TESTED WITH NO DEFECTS NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.

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