# SDR USAA920081015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2008
- Submitted: May 8, 2008
- Operation: Air carrier
- Aircraft: [N186US](https://openairdocs.org/aircraft/N186US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1701
- Aircraft time: 22,081 hours, 8,106 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 4779
- Condition: Inoperative
- Location: Cabin
- Part time: 22,081 hours, 8,106 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA920081015

## Discrepancy

FLT NR 1418 LAX-PHL - EEL - WHILE ACCOMPLISHING EPSU BATTERY TIME CHANGE, FOUND 14WL UNABLE TO TEST.  MAINTENANCE REMOVED AND REPLACED 14WL EMERGENCY POWER SUPPLY UNIT.

---
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.