# SDR SB05162

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 4, 2005
- Submitted: December 5, 2005
- Operation: Air carrier
- Aircraft: N409US
- Make and model: Boeing 737401
- Aircraft serial: 23879
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 20131A
- Condition: Discharged
- Location: Aft Cabin
- 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/SB05162

## Discrepancy

CLT - MAINTENANCE REPORTED THAT SOME OF THE EMERGENCY LIGHTS IN THE AFT CABIN WERE INOPERATIVE.  MAINTENANCE REMOVED AND REPLACED THE AFT BATTERY PACK.  OPERATIONAL CHECK GOOD.

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