# SDR YENA2025110401085

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 1, 2025
- Submitted: November 4, 2025
- Operation: Air carrier
- Aircraft: [N987JT](https://openairdocs.org/aircraft/N987JT), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 07855
- Aircraft time: 33,067 hours, 6,532 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Inoperative
- Location: Zone 200
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025110401085

## Discrepancy

DURING HEAVY MAINTENANCE: EPSU BATTERYS 13WL 14WL DEPLETED; REF STS W/O W004017 N/R N0221. INSTALLED NEW SLIDE AT DOOR 832(L4) IAW A321 AMM 25-62-44-400-007-A FN # 7502MM FUNCTIONAL CHECK GOOD, PERFORMED OPS TEST ESCAPE SLIDE 832 (L4) AFT DOOR IAW A321 AMM 25-62-44-400-007-A SUBTASK 25-62-44-710-061-C STEP 1-6 OP TEST OK."

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