# SDR F3LA202602270372

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 25, 2026
- Submitted: February 27, 2026
- Operation: Air carrier
- Aircraft: [N716FR](https://openairdocs.org/aircraft/N716FR), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 07524
- Aircraft time: 27,557 hours, 11,854 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 321431
- Condition: No Test
- Location: Zone 200
- 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/F3LA202602270372

## Discrepancy

THIS TEST IS PART OF A HEAVY CHECK INSPECTION-MX WRITE UP. EPSU BATTERY (14WL) REQUIRES REPLACEMENT, FAILED EPSU SYS TEST.   REMOVED AND REPLACED EPSU BATTERY (14WL) IAW AMM 33-51-38-000/400-002-A. OPS CHECK GOOD. AIRCRAFT RELEASED FOR SERVICE.

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