# SDR 0000053221

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N321US](https://openairdocs.org/aircraft/N321US), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 262
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 20131A
- Condition: Discharged
- Location: Seat 1,2,3&6
- 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/0000053221

## Discrepancy

DURING TEST OF THE EMERGENCY ESCAPE PATH LIGHTING, THE LIGHTS ON SEATS 1, 2, 3, 6, 7, AND 8 DID NOT ILLUMINATE.  MAINTENANCE REPLACED THE POWER SUPPLY UNIT 110WL1 AND BATTERIES.  OPERATIONAL CHECK OK.

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