# SDR WX0A2021092773844

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 26, 2021
- Submitted: October 4, 2021
- Operation: Air carrier
- Aircraft: [N338NV](https://openairdocs.org/aircraft/N338NV), registered now
- Make and model: Airbus A319-111
- Registry model: [Airbus A319-111](https://openairdocs.org/model/airbus-a319-111) (OpenAirDocs)
- Aircraft serial: 2378
- Aircraft time: 46,408 hours, 31,197 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Faulted
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2021092773844

## Discrepancy

WHEN POWER IS DISCONNECTED AND EMERGENCY LIGHTS ARE SUPPOSED TO TRIGGER ON, ONLY THE REAR CABIN EXIT SIGN AND OVERHEAD LIGHTS AT SEAT ROWS 19 AND 28 ILLUMINATE.   FOUND (10WL , 11WL AND 12WL) EPSU BATTERY TO BE FAULTING REPLACED ALL 3 BATTERY IAW AMM 33-51-38 PB 401.

---
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.