# SDR CALA2026022614070

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2026
- Submitted: February 26, 2026
- Operation: Air carrier
- Aircraft: [N873UA](https://openairdocs.org/aircraft/N873UA), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 2004
- Aircraft time: 59,025 hours, 36,457 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145410
- Condition: No Test
- 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/CALA2026022614070

## Discrepancy

DURING TEST OF THE EMERGENCY LIGHTS, EPSU UNIT FWD L MESSAGE WAS SHOWN ON PROGRAMMING AND TEST PANEL.  REMOVED AND REPLACED THE ESPU & BATTERY IAW AMM 33-51-38-400-002-A, AND 33-51-38-400-001-A. TEST PASSED.

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