# SDR AALA202410076644

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 6, 2024
- Submitted: October 7, 2024
- Operation: Air carrier
- Aircraft: [N136AN](https://openairdocs.org/aircraft/N136AN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6532
- Aircraft time: 27,377 hours, 10,846 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: No Test
- Location: Zone 200
- 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/AALA202410076644

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING CIDS 1 TEST FOR PS CHECK BATTERY/EMERGENCY POWER SUPPLY UNIT (13WL) AFT LIGHT MESSAGE IS SHOWN. REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY (13WL)

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