# SDR USAA2011032891257

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2011
- Submitted: March 28, 2011
- Operation: Air carrier
- Aircraft: [N757UW](https://openairdocs.org/aircraft/N757UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1342
- Aircraft time: 24,523 hours, 18,808 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 3268
- Condition: Failed
- Location: Cabin
- Part time: 24,523 hours, 18,808 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/USAA2011032891257

## Discrepancy

FLT 1468 - DCA-BDL - EMERGENCY LIGHTS - EMERGENCY LIGHTS TEST FAILS ON WEEKLY CHECK.  "EMERGENCY POWER SUPPLY UNIT (EPSU) FORWARD LEFT" ANNUNCIATED.  REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT 10WL PER AMM 33-51-38.  OPERATIONAL CHECK WAS 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, except the copies of manufacturers’ service documents, which belong to their rights holders.