# SDR YENA2022083000833

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 25, 2022
- Submitted: August 30, 2022
- Operation: Air carrier
- Aircraft: [N521JB](https://openairdocs.org/aircraft/N521JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 01452
- Aircraft time: 78,081 hours, 28,351 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Inoperative
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2022083000833

## Discrepancy

DURING HEAVY MAINTENACE: FAULT EPSU EMERGENCY POWER SUPPLY UNIT BATTERY 10WL, 11WL,12WL, 13WL IN PASSENGER CABIN (4EA); REF: ARM W/O 2022 175/1 NR 2022-420207 REMOVED AND REPLACED EPSU EMERGENCY POWER SUPPLY UNIT BATTERY 10WL, 11WL, 12WL, 13WL IN PASSENGER CABIN (4EA) INAW AMM 33-51-38-000-002-A AND AMM 33-51-38-400-002-A AND PERFORMED OPERATIONAL TEST IAW AMM 33-51-00-710-001 AND TEST IS OK.

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