# SDR YENA2019080840435

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 4, 2019
- Submitted: August 8, 2019
- Operation: Air carrier
- Aircraft: [N523JB](https://openairdocs.org/aircraft/N523JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1506
- Aircraft time: 71,707 hours, 26,091 cycles
- System (JASC): [3340 · Exterior Lighting](https://openairdocs.org/jasc/3340)
- Part: Battery Pack
- Part number: 321431
- Part serial: 798481
- Condition: Inoperative
- Location: Emergency Light
- Part time: 9,752 hours, 3,714 cycles
- 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/YENA2019080840435

## Discrepancy

FT # 1525,  WITH ALL POWER OFF THE AC MANY OF THE EMERGENCY LIGHTS ARE NOT ILLUMINATED ON BATTERY POWER I TRIED WITH THE OVERHEAD SWITCHES AND THE FAP.  R & R LH EPSU BATTERY AND EMERGENCY EXIT RH EMERGENCY LIGHT BATTERY EXIT ROW IAW AMM 33-51-00.

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