# SDR AALA202104279005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 26, 2021
- Submitted: April 27, 2021
- Operation: Air carrier
- Aircraft: [N816AW](https://openairdocs.org/aircraft/N816AW), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 1350
- Aircraft time: 64,240 hours, 28,918 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321454
- Part serial: 6372
- Condition: Exploded
- Location: Emergency Light
- Part time: 56,689 hours, 22,583 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: H, D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202104279005

## Discrepancy

AIRCRAFT WAS GROUNDED: WHILE AT THE GATE THE CREW REPORTED HEARING A LOUD BANG / POP FOLLOWED BY AN ELECTRICAL SMELL. PASSENGERS AND THE CREW EVACUATED THE AIRCRAFT VIA THE MAIN CABIN DOOR SAFELY AND FIRE TRUCKS RESPONDED AS A PRECAUTION. (NOTE: NO SLIDES WERE DEPLOYED.). MAINTENANCE FOUND THE LEFT HAND OVERWING EMERGENCY LIGHT POWER SUPPLY BATTERY HAD OVERHEATED AND EXPLODED AND DISCONNECTED IT. THE EMERGENCY POWER SUPPLY UNIT WAS REPLACED AND A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED PER AMM 33-51-38.

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