# SDR YENA2025030300217

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2025
- Submitted: March 3, 2025
- Operation: Air carrier
- Aircraft: [N934JB](https://openairdocs.org/aircraft/N934JB), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 06130
- Aircraft time: 42,789 hours, 8,334 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/YENA2025030300217

## Discrepancy

DURING HEAVY MAINTENANCE: ALL EMERGENCY LIGHTS IN CABIN FROM ROW 14 FWD WILL NOT COME ON WITH BATTERY POWER ONLY. L3 DOOR UPPER EXIT LIGHT DOES NOT COME ON AS WELL; REF STS WO W003701 BR N0549 REMOVED AND REPLACED EPSU BATTERIES AT 10WL, 11WL, 14WL, 15WL IAW AMM 33-51-38-000-001-A, AND 33-51-38-400-001-A OPS CHECKS GOOD.

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