# SDR CALA2026082118800

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2026
- Submitted: August 21, 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: 83,111 hours, 36,659 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Part serial: 8190
- Condition: No Test
- Location: Zone 200
- Part time: 25,113 hours, 12,952 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/CALA2026082118800

## Discrepancy

EPSU BATTERY EMERGENCY LIGHT MESSAGE, DURING  OPS CHECK . R & R EPSU 11WL. OPS CHKD GOOD IAW AMM 33-51-38.

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