# SDR YENA2025072800775

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2025
- Submitted: July 28, 2025
- Operation: Air carrier
- Aircraft: [N4073J](https://openairdocs.org/aircraft/N4073J), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11129
- Aircraft time: 9,739 hours, 1,445 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Control Unit
- Part number: C12850AC03
- Part serial: C12850008133
- Condition: Failed
- Location: Flt Control
- Part time: 20,751 hours, 7,038 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2025072800775

## Discrepancy

FLT#1908, CDG-JFK. (ETOPS) "FCU ONE FAULT IN FLIGHT CLEARED PER FCU COMPUTER RESET TABLE MX NOTIFIED & THEY ADVISED TO MAKE MX ENTRY; REMOVED AND REPLACED FCU PER AMM 22-81-12 OPS CHK GOOD PER AMM 22-70-00."

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