# SDR AALA2020091439007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 11, 2020
- Submitted: September 14, 2020
- Operation: Air carrier
- Aircraft: [N419AN](https://openairdocs.org/aircraft/N419AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 10017
- Aircraft time: 5 hours, 3 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 171523
- Condition: Warning Message
- Location: Emergency Lights
- Part time: 5 hours, 3 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L, J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2020091439007

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE-EMERGENCY LIGHTS INOPERABLE, SEATS 1, 2, 5, 9, 10, 14, 15, "UNIT FAULT" INDICATION.  REPLACED L1 EPSU 10WL, PER AMM 33-51-38, OPERATIONAL CHECK GOOD.

---
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.