# SDR AALA202509222161

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2025
- Submitted: September 22, 2025
- Operation: Air carrier
- Aircraft: [N700UW](https://openairdocs.org/aircraft/N700UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 885
- Aircraft time: 70,224 hours, 41,441 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Fault Message
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: J, L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202509222161

## Discrepancy

AIRCRAFT WAS GROUNDED: REF MIC# 1534536 FAULT "EPSU EXT LOAD FWD L" FOUND ON SYS TEST,AND ALL ADDITIONAL MX CONDUCTED. MAINTENANCE REPLACED EPSU(10WL) UNIT FWD LH SIDE PER AMM 33-51-38.

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