# SDR AALA20161215016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 15, 2016
- Submitted: December 15, 2016
- 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: 9,681 hours, 1,982 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 32146210
- Part serial: 145480
- Condition: Failed
- Location: Cabin
- 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/AALA20161215016

## Discrepancy

AIRCRAFT NOT GROUNDED.  AFT EMERGENCY POWER SUPPLY UNIT FAILED CHECK.  REMOVED AND REPLACED EPSU IAW AMM 33-51-38.  OPERATIONAL CHECK GOOD.

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