# SDR CALA2019101401759

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2019
- Submitted: October 14, 2019
- Operation: Air carrier
- Aircraft: N411UA
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 464
- Aircraft time: 83,022 hours, 31,798 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Condition: No Test
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2019101401759

## Discrepancy

EPSU L AND R FAIL P TP SYSTEM LIGHT CHECK REMOVED AND REPLACED LEFT AND RIGHT EPSU''S (11WL AND 12WL) AND L EFT AND RIGHT EPSU BATTERIES IAW AMM 33-51-38-000-001-A, 33 -51-38-400-001-A, 33-51-38-000-002-A, AND 33-51-38-400-002-A. PE RFORMED OPS CHECK OF THE EMERGENCY SUPPLY UNITS BY BITE CHECK IAW A320 AMM 33-51-00-710-001-A. OPS CHECK GOOD.

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