# SDR USAASB01258

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 16, 2001
- Submitted: December 4, 2001
- Operation: Air carrier
- Aircraft: N775AU
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24933
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Condition: Discharged
- 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/USAASB01258

## Discrepancy

PHL - MAINTENANCE FOUND SEVERAL EMERGENCY EXIT LIGHTS, IN THE CABIN, WOULD NOT ILLUMINATE.  MAINTENANCE REMOVED AND REPLACED THE AFT EMERGENCY LIGHT BATTERY PACK.  OPERATIONAL CHECK GOOD.  (M)

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