# SDR CALA2019120302131

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 28, 2019
- Submitted: December 3, 2019
- Operation: Air carrier
- Aircraft: [N478UA](https://openairdocs.org/aircraft/N478UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1533
- Aircraft time: 42,390 hours, 23,137 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: 321431
- Condition: Failed
- 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/CALA2019120302131

## Discrepancy

CAB ESPU 10WL BATTERY FOUND LOW VOLTAGE REF ROUTINE NO.9490827 - ORIGINATED BY EMP V905504, SPEC NO.A3NB-24-3-6062. PERFORMED BY EMP V924351, REPLACED 10WL ESPU BATT PACK AND PERFORMED BITE TEST OF ESPU THE RESULT FND ''SATIS'' AS PER AMM 33 -51-38-000-002 REV.103, AMM 33-51-38-400-002 REV.103, AMM 33-51- 00-710-001 REV.103 ADD EMP:V905504 IDT BY TA439.

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