# SDR CALA2026101320358

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 12, 2026
- Submitted: October 14, 2026
- Operation: Air carrier
- Aircraft: [N817UA](https://openairdocs.org/aircraft/N817UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 873
- Aircraft time: 83,398 hours, 36,844 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Condition: Faulted
- Location: Zone 200
- 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/CALA2026101320358

## Discrepancy

TEST OF THE EMERGENCY LIGHTS FAILS WITH EPSU INT LOAD EMER R, EPSU BATTERY AFT L AND EPSU UNIT EMER L MESSAGES. R&R RIGHT OVER WING EPSU REF AMM 33-51-400-001-A. R&R AFT BATTERY OF EPSU REF AMM 33-51-38-000-002-A. OPS CHECK GOOD. NO FAULTS NOTED AT THIS TIME.

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