# SDR AALA201712279015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2017
- Submitted: December 29, 2017
- Operation: Air carrier
- Aircraft: [N559UW](https://openairdocs.org/aircraft/N559UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5292
- Aircraft time: 17,872 hours, 7,229 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 148965
- Condition: Inoperative
- Location: Emergency Lights
- Part time: 5,198 hours, 1,997 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201712279015

## Discrepancy

AIRCRAFT GROUNDED. EMERGENCY EXIT LIGHTS ILLUMINATE OCCASIONALLY BY THE 3R DOOR IN FLIGHT. REPLACED 12WL EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-38. OPERATIONS CHECK OK.

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