# SDR AALA20170405002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 4, 2017
- Submitted: April 7, 2017
- Operation: Air carrier
- Aircraft: [N158AN](https://openairdocs.org/aircraft/N158AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7009
- Aircraft time: 3,359 hours, 1,316 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 776745
- 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/AALA20170405002

## Discrepancy

ON SERVICE CHECK, CIDS TEST FAILED FIN 15WL POWER SUPPLY UNIT. REPLACED THE BATTERY IAW SRM 33-58-00. ACCOMPLISEHED SATISFACTORY OPERATIONAL CHECK.

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