# SDR F3LA2023052200060

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2023
- Submitted: May 22, 2023
- Operation: Air carrier
- Aircraft: [N316FR](https://openairdocs.org/aircraft/N316FR), registered now
- Make and model: Airbus A320-251N
- Registry model: [Airbus A320-251N](https://openairdocs.org/model/airbus-a320-251n) (OpenAirDocs)
- Aircraft serial: 07824
- Aircraft time: 18,690 hours, 8,113 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD321431
- Part serial: NSN
- Condition: Failed
- Location: Zone 200
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA2023052200060

## Discrepancy

DISCREPANCY: REFERENCE LOG PAGE LP264465 ITEM #1, AIRCRAFT WAS NOT GROUNDED AND WAS AN OVERNIGHT LINE MX CHECK. EPSU TEST FAULT.
CORRECTIVE ACTION: REMOVED AND REPLACED 10WL EPSU BATTERY PER AMM 33-51-38-000-002-A AND 33-51-38-400-002-A. OPS TEST GOOD PER AMM 33-51-00-710-001 TEST PASS.//END//

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