# SDR CALA2019031100387

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2019
- Submitted: March 11, 2019
- Operation: Air carrier
- Aircraft: [N830UA](https://openairdocs.org/aircraft/N830UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1243
- Aircraft time: 60,409 hours, 25,913 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32145410
- Condition: Inoperative
- Location: Cabin
- 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/CALA2019031100387

## Discrepancy

N/R 9022822. (SUPPORT TASK) L-58 NO DOT, THE AFT EPSU, 13WL, FAILS THE BITE TEST WITH AN INT LOAD FAULT, AND LIGHTS UNIT FAU LT LIGHT ON THE UNIT. N/R 9022822. REMOVED AND REPLACED AFT EPSU 13WL IAW AMM 33-51-38-000-001A, 33-51-38-400-001A OPS CHECK PERFORMED ON CUSTOMER CARD NO. 17-3351-1-7907 SEQ 495. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1249200 SN OFF 4708 POWER SUPPLY, C  OFF 31-3350-9-9001 4708 ON 31-3350-9-9001 2558.

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