# SDR AALA202507065042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 2, 2025
- Submitted: July 6, 2025
- Operation: Air carrier
- Aircraft: [N124US](https://openairdocs.org/aircraft/N124US), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1314
- Aircraft time: 69,567 hours, 35,238 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Inoperative
- 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/AALA202507065042

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: EMERGENCY LIGHT TEST FAILED FOLLOWING FAULTS INCLUDEEPSU INT LOAD AFT LEPSU EXT LOAD AFT LEPSU BATTERY EMEP REPSU BATTERY AFT L EPSU UNIT. MAINTENANCE REPLACED 10WL ESPU AND BATTERY IAW AMM 33-51-38, OPS CHECK GOOD.

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