# SDR SIMA201031902

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2010
- Submitted: November 15, 2010
- Operation: Air carrier
- Aircraft: [N524AE](https://openairdocs.org/aircraft/N524AE), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10154
- Aircraft time: 16,546 hours, 11,950 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20121A
- Condition: Discharged
- Location: Cabin
- 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/SIMA201031902

## Discrepancy

DURING MAINTENANCE COURTESY CHECK FOUND EMERGENCY LIGHTS IN CENTER CABIN WOULD NOT ILLUMINATE.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  TROUBLESHOT AND FOUND NR 3 EMERGENCY POWER SUPPLY UNIT BATTERY INOPERABLE.  REMOVED AND REPLACED THE NR 3 EMERGENCY POWER SUPPLY UNIT BATTERY AND CHARGER IAW WC 33-002. THE OPERATIONAL CHECK WAS GOOD.  NO FURTHER DEFECTS NOTED.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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