# SDR AALA202307110577

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2023
- Submitted: July 11, 2023
- Operation: Air carrier
- Aircraft: [N660AW](https://openairdocs.org/aircraft/N660AW), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1234
- Aircraft time: 75,819 hours, 31,054 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 4088
- Condition: No Test
- Location: Zone 200 - Fuse
- Part time: 63,001 hours, 29,482 cycles
- Stage of operation: IN
- How discovered: C
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202307110577

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CIDS OPERATIONAL TEST OF THE EMERGENCY POWER SUPPLY UNITS, FAULT MESSAGE FOR EMERGENCY POWER SUPPLY UNIT 13WL DISPLAYED. REPLACED EMERGENCY POWER SUPPLY UNIT 13WL (AALA202307110577) AND BATTERY (AALA202307115881) PER AMM 33-51-38. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.

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