# SDR CALA2019030800360

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2019
- Submitted: March 8, 2019
- Operation: Air carrier
- Aircraft: [N855UA](https://openairdocs.org/aircraft/N855UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 1737
- Aircraft time: 54,051 hours, 23,559 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Unknown
- Condition: Malfunctioned
- 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/CALA2019030800360

## Discrepancy

PER 9617511 AND T/C 18-0550-1-0002 (SPEC A3NB-33-3-6012) CAB IN EMERGENCY LIGHT CHECK FROM PTP FAILS WITH MSG "EPSU BATT AFT L" AND "EPSU BATT EMER L" RESET EPSU BATT AFT L AND BATT EMER L IAW AMM 33-51-38-400- 001A, PERFORMED BITE TEST IAW AMM 33-51-38-400-001A NO DEFE CTS NOTED.

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