# SDR DALA2026051302987

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 12, 2026
- Submitted: May 13, 2026
- Operation: Air carrier
- Aircraft: [N394DX](https://openairdocs.org/aircraft/N394DX), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 9125
- Aircraft time: 21,244 hours, 9,139 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Failed
- Location: Zone 200
- 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/DALA2026051302987

## Discrepancy

DURING SVC CHECK FOUND EPSU UNIT BAD LOCATION (11WL).   REPLACED EPSU 11WL IAW AMM 33-51-38 OPS CHECK SATISFACTORY. (LP 8700089 - AIRCRAFT WAS GROUNDED)

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