# SDR YENA2020020390109

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2020
- Submitted: February 3, 2020
- Operation: Air carrier
- Aircraft: [N989JT](https://openairdocs.org/aircraft/N989JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 7924
- Aircraft time: 9,636 hours, 1,874 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 809397
- Condition: No Test
- Location: 10wl-Batt
- Part time: 9,636 hours, 1,874 cycles
- 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/YENA2020020390109

## Discrepancy

FT # 333, BOS-SFO. GROUND POWER DROPPED AND EMERGENCY LIGHTS DID NOT ILLUMINATE; REMOVED & REPLACED 6 EMERGENCY BATTERY RE TASK CARD A320-33-51-00-710-003. OPS CHECK GOOD.

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