# SDR AALA201905049008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2019
- Submitted: May 6, 2019
- Operation: Air carrier
- Aircraft: [N176UW](https://openairdocs.org/aircraft/N176UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1499
- Aircraft time: 61,113 hours, 22,914 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145510
- Part serial: 2256
- Condition: Inoperative
- Location: Cabin
- Part time: 61,122 hours, 22,952 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/AALA201905049008

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: INOPERABLE EMERGENCY POWER SUPPLY UNIT 14WL IN PASSENGER CABIN. REPLACED EPSU AND PERFORMED BITE TEST PER AMM 33-51-38-400-001-A.

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