# SDR AALA2019121769026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 14, 2019
- Submitted: December 17, 2019
- Operation: Air carrier
- Aircraft: [N176UW](https://openairdocs.org/aircraft/N176UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1499
- Aircraft time: 63,321 hours, 23,750 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Part serial: 92551
- Condition: No Test
- Location: Emergency Lights
- 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/AALA2019121769026

## Discrepancy

AIRCRAFT WAS GROUNDED: VARIOUS CABIN EMERGENCY FLOOR PATH LIGHTS EXTINGUISHED PREMATURELY DURING TEST. MAINTENANCE REPLACED EEPL BATTERY AT EMERGENCY POWER SUPPLY UNIT (11WL) PER AMM 33-51-38.

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