# SDR DALA2024071007001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 7, 2024
- Submitted: July 10, 2024
- 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: 28,278 hours, 2,805 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: UNKNOWN
- Condition: Faulted
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2024071007001

## Discrepancy

DM'S CABIN EMER EXIT LT. MX MSG 3350F001 REF A350 TSM A350-A-33-51-XX-00001-421A-A. REPLACED EPSU 101WL1 (1L) AND 102WL1 (1R). SW LOAD AND EPSU TEST GOOD. DISPATCH MSG CLEARED. (LP# 5145518)

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