# SDR CALA2026090119175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 30, 2026
- Submitted: September 1, 2026
- Operation: Air carrier
- Aircraft: [N848UA](https://openairdocs.org/aircraft/N848UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1647
- Aircraft time: 73,664 hours, 33,586 cycles
- Engine: Iae V2522A5
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- 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/CALA2026090119175

## Discrepancy

DURING 2SC TEST,  EMERGENCY LIGHT TEST ON TEST PANEL (PTP) 110RH, FOUND EPSU BATTERY AFT LT STATUS MESSAGE. PER TSM 33-51-00-810-802-A PERFORMED TEST OF THE EPSU IAW AMM 33-51-00-710-006-A. OPS CHECKED GOOD. PERFOMED EMERGENCY LIGHT TEST IAW AMM 33-51-00-710-001-A. OPS CHKD GOOD.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.