# SDR YENA2020030610211

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 1, 2020
- Submitted: March 6, 2020
- Operation: Air carrier
- Aircraft: [N507JT](https://openairdocs.org/aircraft/N507JT), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1240
- Aircraft time: 70,698 hours, 26,463 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 321431
- Part serial: 800368
- Condition: Discharged
- Location: Cabin
- Part time: 10,059 hours, 3,877 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/YENA2020030610211

## Discrepancy

DURING HEAVY MAINTENANCE, WHILE ACCOMPLISHING ITEM 13 OF TASK CARDS 320K8010 ENO -10 AND 320K8010-ENO 11, FOUND EMERGENCY LIGHTS 51WL AND 53WL INOP IN PASSENGER CABIN (2EA); REF AEROMAN N/R 2020-44247, REMOVED AND REPLACED GPSU BATTERY PACK 11WL IAW AMM 33-51-38 AND PERFORMED OPERATIONAL TEST OF THE EMERGENCY POWER SUPPLY UNITS BY BITE CHECK IAW 33-51-00-710-001-A. TEST IS OK

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