# SDR 2006UALA00475

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 12, 2006
- Submitted: March 24, 2006
- Operation: Air carrier
- Aircraft: [N816UA](https://openairdocs.org/aircraft/N816UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 871
- Aircraft time: 26,216 hours, 9,963 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Condition: Faulty
- Location: Aft Left
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2006UALA00475

## Discrepancy

AFTER REPLACING BATTERY IN REAR EPSU, PTP TEST DISPLAYS *EPSU AFT L*.    REPLACED POWER SUPPLY. TESTED THROUGH PTP AND GOT GREEN OK LIGHT AND TEST OK MESSAGE.

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