# SDR AALA202105179008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2021
- Submitted: May 17, 2021
- Operation: Air carrier
- Aircraft: [N117AN](https://openairdocs.org/aircraft/N117AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6094
- Aircraft time: 22,571 hours, 4,687 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32146210
- Part serial: 162385
- Condition: Faulted
- Location: Zone 200
- 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/AALA202105179008

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING 26LOOO25012 ACCOMPLISHMENT EMERGENCY POWER SUPPLY UNIT BITE TEST FAULTS EMERGENCY POWER SUPPLY UNIT (11WL) EXIT LIGHT/ DECODER ENCODER UNIT B (300RH6). REMOVED AND REPLACED 300RH6 3L EMERGENCY POWER SUPPLY UNIT PER AMM 33-51-38.

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