# SDR AALA201606089005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 7, 2016
- Submitted: June 8, 2016
- Operation: Air carrier
- Aircraft: [N538UW](https://openairdocs.org/aircraft/N538UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4050
- Aircraft time: 21,717 hours, 8,586 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Connector
- Condition: Missing
- Location: Cabin
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201606089005

## Discrepancy

AIRCRAFT IN BASE MX.  RECEPTACLE MISSING FOR EMER LIGHT PINS THAT CONNECT AT SEAT ROW 22AB.  REPLACED CONNECTOR IAW ASM 33-51-04 & FOUND EMER POWER SUPPLY UNIT 12WL FAULTY DURING THE OPERATIONAL CHECK.  REPLACED EMER POWER SUPPLY UNIT 12WL & ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK IAW AMM 33-51-38-400.  SEE AALA201606089012 FOR ADDITIONAL PART.

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