# SDR SB08016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2008
- Submitted: March 27, 2008
- Operation: Air carrier
- Aircraft: N451UW
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24934
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131ASMI
- Condition: Discharged
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SB08016

## Discrepancy

PHL - MAINTENANCE REPORTED SEVERAL EMERGENCY LIGHTS IN THE MID CABIN WILL NOT STAY ILLUMINATED DURING TEST.  MAINTENANCE REMOVED AND REPLACED BATTERY PACK M1479.  OPERATIONAL CHECK GOOD.

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