# SDR CALA2016120501034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 5, 2016
- Submitted: December 6, 2016
- Operation: Air carrier
- Aircraft: [N447UA](https://openairdocs.org/aircraft/N447UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 836
- Aircraft time: 60,844 hours, 24,689 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- Location: Cabin
- 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/CALA2016120501034

## Discrepancy

TESTED EMERG LIGHTS ON FAP. GOT MSG "EPSU UNIT AFT L" PER TSM 33-51-00-810-801-A, NEED TO REPLACE BATTERY PACK AND BATTERY. PN 3214-54-10 AND 3214-31. REMOVED AND REPLACED AFT BATTERY PACK AND AFT BATTERY IAW AMM 33 -51-38. OPS NML.

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