# SDR USAASB01348

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2001
- Submitted: January 24, 2002
- Operation: Air carrier
- Aircraft: N437US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24559
- 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/USAASB01348

## Discrepancy

TPA - MAINTENANCE FOUND THE AFT SECTION OF EMERGENCY PATHWAY LIGHTS WILL NOT EXTINGUISH.  MAINTENANCE REMOVED AND REPLACED THE AFT LEFT BATTERY PACK (P/N 2013-1A) AND CHARGER ASSEMBLY.  ALSO, REMOVED AND REPLACED THE AFT RIGHT CHARGER ASSEMBLY (P/N 11-0049) DUE TO A BLOWN FUSE.  OPERATIONAL CHECK GOOD.  (M)

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