# SDR AALA201805299014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 26, 2018
- Submitted: May 30, 2018
- Operation: Air carrier
- Aircraft: [N730US](https://openairdocs.org/aircraft/N730US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1182
- Aircraft time: 50,357 hours, 29,537 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 2470
- Condition: Failed
- Location: Cabin
- Part time: 50,356 hours, 29,536 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/AALA201805299014

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY LIGHT OPS TEST, CIDS INDICATED EMERGENCY POWER SUPPLY UNIT (12WL) FAILED. MAINTENANCE TROUBLESHOT PER AIRBUS A319 TSM 33-51-00 AND REPLACED EMERGENCY POWER SUPPLY UNIT  (12WL) PER AMM 33-51-38 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.

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