# SDR DALA2024032603832

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2024
- Submitted: March 26, 2024
- Operation: Air carrier
- Aircraft: [N324DX](https://openairdocs.org/aircraft/N324DX), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 7765
- Aircraft time: 20,437 hours, 9,108 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: UNKNOWN
- Condition: No Test
- Location: Emergency Lights
- 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/DALA2024032603832

## Discrepancy

AIRCRAFT 3024, EMERGENCY PATH LIGHTS ROWS 28, 29, 33, 34, 35, 38, 39 INOP. CORRECTIVE ACTION: EPSU SYS TEST FAULTS MSG 335138 EPSU (13WL) AFT L. REPLACED POWER SUPPLY 13WL AND BATTERY IAW A321 AMM 33-51-38. OP TEST GOOD.

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