# SDR CALA2019052700839

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2019
- Submitted: May 27, 2019
- Operation: Air carrier
- Aircraft: [N454UA](https://openairdocs.org/aircraft/N454UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1104
- Aircraft time: 65,512 hours, 25,921 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery
- Part number: AD321431
- Condition: Failed
- Location: Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2019052700839

## Discrepancy

(SUPPORT TASK) L-58 NO DOT. THE RT EPSU (12WL) FAILS IT'S BATTERY WHEN TESTED FROM THE PTP. NONROUTINE 9619154 REMOVED AND REPLACED RT EPSU BATTERY IAW AMM 33-51-38-000- 002-A AND 33-51-38-400-002A. PERFORMED TEST OF EPSU BATTERY IAW AMM 33-51-38-000-002-A SUBTASK 33-51-38-710-052-B. NO FAULT S NOTED.

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