# SDR SIMA20120429005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 29, 2012
- Submitted: April 30, 2012
- Operation: Air carrier
- Aircraft: [N621AE](https://openairdocs.org/aircraft/N621AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145105
- Aircraft time: 30,146 hours, 28,878 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Inverter
- Part number: 78241
- Condition: Inoperative
- 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/SIMA20120429005

## Discrepancy

DURING B-INSPECTION FOUND THE EMERGENCY EXIT SIGN IN FRONT OF SEAT 3B INOPERABLE.  THE AIRCRAFT WAS REMOVED FROM SERVICE.  TROUBLESHOT PER WM 33-50-50.  REMOVED AND REPLACED THE NR 3 EMERGENCY LIGHT INVERTER.  THE OPERATIONAL CHECK WAS GOOD PER WC 33-700-17.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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