# SDR AALA201907169007

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 14, 2019
- Submitted: July 16, 2019
- Operation: Air carrier
- Aircraft: [N194UW](https://openairdocs.org/aircraft/N194UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 3629
- Aircraft time: 37,059 hours, 14,345 cycles
- System (JASC): [2432 · Battery/Charger System](https://openairdocs.org/jasc/2432)
- Part: Battery
- Part number: 2758
- Part serial: C03117
- Condition: Discharged
- Location: Zone 100
- Part time: 12,378 hours, 5,009 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: H
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201907169007

## Discrepancy

AIRCRAFT WAS GROUNDED: MAINTENANCE REPORTS GATE CALL TO A/C FOR DARK A/C. UPON ARRIVAL FOUND EXT PWR NOT SELECTED, BAT 1/2 , ADIRUS SELECTED ON, EMERGENCY EXITS ARMED. SELECTED EMERGENCY LIGHTS TURNED ON AND NONE ILLUMINATED. SWITCHED ADIRUS OFF, EMER LIGHTS OFF, SELECTED EXT POWER ON. MAINTENANCE REMOVED AND REPLACED MAIN BATT 1 & 2 IAW AMM 24-38-51-400-001-A. OPS CHECK GOOD. ALSO PERFORMED OPERATIONAL TEST OF EMERGENCY POWER SUPPLY UNIT IAW AMM 33-51-38-400-002-A. OPS CHECK GOOD IAW SUBTASK 710-052-B. (SEE SDR # AALA201907159001)

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