# SDR USAASB97246

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 11, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N445US
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24863
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: AD20131A
- Condition: Discharged
- Location: Cabin
- Stage of operation: IN
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAASB97246

## Discrepancy

ORD - MAINTENANCE FOUND THE EMERGENCY LIGHTS CONTROLLED BY POWER SUPPLY M1435 AT STATION 727G, RIGHT SIDE, EXTINGUISH AFTER ABOUT 5 SECONDS FROM WHEN EMERGENCY LIGHT SWITCH IS TURNED ON.  MAINTENANCE REMOVED AND REPLACED THE BATTERY PACK. OPS CHECK GOOD.  (M)

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