# SDR DALA2026061503570

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 12, 2026
- Submitted: June 15, 2026
- Operation: Air carrier
- Aircraft: [N507DN](https://openairdocs.org/aircraft/N507DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0182
- Aircraft time: 37,704 hours, 3,699 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- 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/DALA2026061503570

## Discrepancy

DURING EPSU CAP TEST FOUND FAULT 3350F00E. R/R EPSU 101WL2 REF A350 AMM 33-51 OPS CK GOOD (LP# 8318595; AIRCRAFT WAS GROUNDED)

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