# SDR 9722103201

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N301US](https://openairdocs.org/aircraft/N301US), registered now
- Make and model: Airbus A320-211
- Registry model: [Airbus A320-211](https://openairdocs.org/model/airbus-industrie-a320-211) (OpenAirDocs)
- Aircraft serial: 31
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321454
- Condition: Failed
- Location: Cabin
- Part time: 15,137 hours
- 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/9722103201

## Discrepancy

DURING OVERWING MAINTENANCE TEST OF EMERGENCY LIGHT SYSTEM, MESSAGE INT LOAD EMER RT WAS RECEIVED.  MAINTENANCE REPLACED RIGHT OVERWING EMERGENCY POWER SUPPLY UNIT.  OPERATIONAL CHECK OK.

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