# SDR AALA202107098710

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2021
- Submitted: July 9, 2021
- Operation: Air carrier
- Aircraft: [N403AN](https://openairdocs.org/aircraft/N403AN), registered now
- Make and model: Airbus A321-253NX
- Registry model: [Airbus A321-253NX](https://openairdocs.org/model/airbus-a321-253nx) (OpenAirDocs)
- Aircraft serial: 8780
- Aircraft time: 5,347 hours, 1,574 cycles
- System (JASC): [3397 · Light System Wiring](https://openairdocs.org/jasc/3397)
- Part: Connector
- Condition: Failed
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202107098710

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS TEST FAILED BATTERY, EMERGENCY POWER SUPPLY UNIT LEFT EXIT. DISCONNECTED AND RECONNECTED THE ELECTRICAL CONNECTOR ON EMERGENCY POWER SUPPLY UNIT L (16WL). INSTALL TEST GOOD PER A321 AMM 33-51-38-001-400-001-A.

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