# SDR CALA2024120201373

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 2024
- Submitted: December 2, 2024
- Operation: Air carrier
- Aircraft: [N474UA](https://openairdocs.org/aircraft/N474UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1475
- Aircraft time: 66,965 hours, 28,980 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: AD321431
- Condition: Discharged
- Location: Zone 200
- 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/CALA2024120201373

## Discrepancy

OPERATIONAL CHECK OF CABIN EMERGENCY LIGHTS {A3NB-33-3-6012} - TEST SHOWS EPSU BATTERY AFT LEFT PREFORMED SELF TEST ON AFT EPSU, SHOWS BATTERY FAULT REMOVED AND REPLACED AFT EPSU BATTER REF AMM: 33-51-38-000-002-A AND 33-51-38-400-002-A. OPS CHECK OK, OK FOR SERVICE,

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