# SDR AALA202204088677

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2022
- Submitted: April 8, 2022
- Operation: Air carrier
- Aircraft: [N182UW](https://openairdocs.org/aircraft/N182UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1536
- Aircraft time: 67,876 hours, 25,768 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321454
- Part serial: 1330
- Condition: Inoperative
- Location: Zone 200 - Fuse
- Part time: 62,815 hours, 26,016 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202204088677

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: EMERGENCY EXIT LIGHTS BLINK ERRATICALLY WHEN COCKPIT SW IS SET TO ON. BITE TEST ON CIDS PANEL SHOWS NUMEROUS FAULTS. REPLACED EMERGENCY POWER SUPPLY UNIT BATTERIES PER TASK CARD 28C00033004 (AALA202204088821) AND EMERGENCY POWER SUPPLY UNIT 10WL WAS FOUND TO BE INOPERATIVE AND WAS REPLACED PER AMM 33-51-38.(AALA202204088677) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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