# SDR AALA201907029042

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 2019
- Submitted: July 3, 2019
- Operation: Air carrier
- Aircraft: [N148AN](https://openairdocs.org/aircraft/N148AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6790
- Aircraft time: 12,408 hours, 4,672 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Condition: Faulted
- 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/AALA201907029042

## Discrepancy

AIRCRAFT IN BASE VISIT: MAINTENANCE REPORTS WHEN PERFORMING CIDS1 EPSU SYSTEM TEST, DIR1 ACTIVE ATA 33-51-00 BAT/EPSU (13WL) FAULT. REMOVED AND REPLACED BATTERY PACK 13WL IAW AMM 33-51-00. OPS CHECK GOOD.

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