# SDR WX0A2023032931744

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2023
- Submitted: March 29, 2023
- Operation: Air carrier
- Aircraft: N242NV
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1396
- Aircraft time: 55,515 hours, 39,006 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Epsu
- Part number: 321431
- Part serial: 791226
- Condition: Unknown
- Stage of operation: IN
- How discovered: C
- Nature of condition: P
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WX0A2023032931744

## Discrepancy

EMERGENCY LIGHTS AND SIGNS ARE INOP WHILE ON BATTERY POWER AT L1, R2 EXITS / REF TSM 33-51-00-810-801-A. PERFORMED BITE TEST REF AMM 33-51-00-710-001. REMOVED AND REPLACED FWD AND AFT EPSU BATTERIES REF AMM 33-51-38-000-002 AND AMM 33-51-38-400-002-A. OPS CHECK GOOD"

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