# SDR AALA201711249028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 23, 2017
- Submitted: November 27, 2017
- Operation: Air carrier
- Aircraft: [N134AN](https://openairdocs.org/aircraft/N134AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6495
- Aircraft time: 8,561 hours, 3,365 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321430
- Part serial: 792770
- Condition: No Test
- Location: Emergency Lights
- 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/AALA201711249028

## Discrepancy

OPERATIONAL TEST OF EMERGENCY POWER SUPPLY UNIT (CIDS 1) SHOWS THE FOLLOWING FAULTS.  REPLACED THE POWER SUPPLY BATTERY IAW AMM 33-51-38. ACCOMPLISHED SATISFACTORY OPERATIONAL TEST.  AIRCRAFT WAS GROUNDED.

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