# SDR WX0A2021012573630

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2021
- Submitted: January 25, 2021
- Operation: Air carrier
- Aircraft: [N254NV](https://openairdocs.org/aircraft/N254NV), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 7913
- Aircraft time: 8,552 hours, 4,644 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 133600
- Condition: Faulted
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2021012573630

## Discrepancy

OPERATIONAL TEST OF THE EMERGENCY LIGHTS FAULTS. EPSU (10WL)FWD L AND EPSU (13WL) AFT L/DEU (300RH7).  ACCOMPLISHED T/S AS PER A320 TSM 33-51-00-810-836-A.  FOUND FAULTY LIGHTS CIRCUIT ON AFT RT SLIDE/RAFT, AS PER TSM.  REMOVED AND REPLACED EPSU (13WL), REF AMM 33-51-38 AND AFT RT SLIDE/RAFT (7503MM), REF AMM 25-62-44.  OPERATIONS CHECK NORMAL.  EMERGENCY LIGHTS TEST GOOD, AS PER REF AMM 33-51-00.  NO CFDS FAULT MESSAGES NOTED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.