# SDR GTIA2023052537211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 23, 2023
- Submitted: May 26, 2023
- Operation: Air carrier
- Aircraft: [N687NK](https://openairdocs.org/aircraft/N687NK), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 8160
- Aircraft time: 17,186 hours, 7,548 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32146210
- Part serial: 158202
- Condition: Faulted
- Location: Epsu 14wl
- Part time: 17,186 hours, 7,548 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2023052537211

## Discrepancy

14WL (EPSU) POWER SUPPLY UNIT FAULTING-R&R 14WL (EPSU) POWER SUPLY UNIT IAW AMM 33-51-38 OPS TEST GOOD

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