# SDR CALA2020120401321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2020
- Submitted: December 4, 2020
- Operation: Air carrier
- Aircraft: [N818UA](https://openairdocs.org/aircraft/N818UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 0882
- Aircraft time: 68,964 hours, 29,204 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: AD321431
- Part serial: 170772
- Condition: Inoperative
- Location: Emergency Lights
- 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/CALA2020120401321

## Discrepancy

A3NB-33-3-6012 MAIN CABIN EMERGENCY LIGHT SYSTEM FAILS EPSU BATTERY FWD L33-51-38.  (SDR) REF TO PEMCO/AIRBORNE NR 10261.0031.  REMOVED AND REPLACED EPSU BATTERY PACK (10WL) (AERO DESIGN,INC), IAW A319 AMM 33-51-38-000-002-A, 33-51-38-400-002-A.  OPERATIONS CHECK GOOD, IAW A319 AMM 33-51-00-710-001-A.

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