# SDR SIMA20120831007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 31, 2012
- Submitted: September 4, 2012
- Operation: Air carrier
- Aircraft: [N668HH](https://openairdocs.org/aircraft/N668HH), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145785
- Aircraft time: 22,146 hours, 18,920 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery
- Part number: 32248001
- Part serial: 109019521110140
- Condition: Defective
- Location: Main
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20120831007

## Discrepancy

DURING MAINTENANCE INSPECTION FOUND THE BATTERY VOLTAGE PROPS RAPIDLY BELOW 23.5 VOLTS AS SOON AS GENERATOR POWER IS SHUTDOWN.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED BATTERY 1 AND 2 IAW WC 24-600-00.  THE OPERATIONAL CHECK WAS GOOD.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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