# SDR YENA2024111301474

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 12, 2024
- Submitted: November 13, 2024
- 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: 42,165 hours, 8,208 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Part number: 321431
- Part serial: 923669
- Condition: Precautionary
- Location: 13wl-Batt
- Part time: 4,144 hours, 1,642 cycles
- Component: Overwing Emr Li, Airbus, UNKNOWN
- 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/YENA2024111301474

## Discrepancy

FLT#15, JFK-SFO. 'INSTALLED NEW EPSU REQUIRES NEW EMERGENCY LIGHT BATTERY; REMOVED AND REPLACED EMERGENCY LIGHT BATTERY IAW AMM 33-51-38 FOR EPSU AT POSITION 13WL. PERFORMED OPS CHECK OF EMERGENCY LIGHTS AND R4 DOOR INDICATION, REF LP 4164843, BOTH OK.'

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