# SDR CALA2026071417751

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2026
- Submitted: July 14, 2026
- Operation: Air carrier
- Aircraft: [N803UA](https://openairdocs.org/aircraft/N803UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 748
- Aircraft time: 84,018 hours, 36,949 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- 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/CALA2026071417751

## Discrepancy

EPSU BATTERY FWD L FAULT ON CIDS EMERGENCY LIGHT TEST. ATA 33-51-38. PERFORMED FAULT ISOLATION IAW TSM 33-51-00-810-802-A. STEP 4. A. (1) REQUIRES BATTERY REPLACEMENT WHEN RED BATTERY FAULT LED IS DISPLAYED ON EPSU BATTERY.  PERFORMED SYSTEM RESET, EPSU BATTERY FWD L CLEARED, REPLACED BY EPSU BATTERY EMER L. PERFORMED EPSU BATTERY BITE CHECK IAW AMM 319-100 AMM 33-51-00-710-001-A. OPS CHECK 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.