# SDR AALA202405212089

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2024
- Submitted: May 21, 2024
- 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: 77,682 hours, 32,200 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 3715
- Condition: Inoperative
- Location: Emergency Lights
- Part time: 64,962 hours, 30,868 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/AALA202405212089

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE: INOP EMERGENCY POWER SUPPLY UNIT (11WL). REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT (11WL) I.A.W AMM 33-51-38-000-001-A, AMM  33-51-38-400-001-A, PERFORMED BITE CHECK OF EPSU I.A.W AMM 33-51-00-710-001-A BITE CHECK IS OK, PERFORMED POWERUP TEST OFTHE CIDS I.A.W AMM  23-73-00-740-005-A TEST IS OK.

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