# SDR USAASB01191

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 5, 2001
- Submitted: August 14, 2001
- Operation: Air carrier
- Aircraft: N428US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24550
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Charger
- Part number: 20121
- Condition: Failed
- 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/USAASB01191

## Discrepancy

ALB - DURING OPERATIONAL TEST OF EMERGENCY LIGHTS, MAINTENANCE FOUND THE FORWARD SERVICE DOOR EMERGENCY LIGHTS WENT INOPERATIVE.  MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK (P/N 2013-1A) WITH NO HELP.  REMOVED AND REPLACED THE CHARGER ASSEMBLY.  SYSTEM NOW OPERATIONALLY CHECKS GOOD.  (M)

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