# SDR SIMA20120705012

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2012
- Submitted: July 6, 2012
- Operation: Air carrier
- Aircraft: [N663AR](https://openairdocs.org/aircraft/N663AR), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145778
- Aircraft time: 21,931 hours, 18,962 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Charger
- Part number: 20131A
- Part serial: 60644
- Condition: Inoperative
- Location: Cabin
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20120705012

## Discrepancy

DURING MAINTENANCE INSPECTION FOUND THE INVERTER NR 6 INOPERABLE AND THE NR 4 BATTERY CHARGER HAD A BLOWN INTERNAL FUSE.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  REMOVED AND REPLACED THE INVERTER--DID NOT FIX.  REMOVED AND REPLACED THE BATTERY HOLDER ASSEMBLY---DID NOT FIX.  REMOVED AND REPLACED THE NR 4 BATTERY CHARGER AND INSTALLED THE OVERHEAD PANEL AT BATTERY CHARGER NR 4 IN ACCORDANCE WITH EMB 145 AMM 25-22-04.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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