# SDR YENA2025090500914

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2025
- Submitted: September 5, 2025
- Operation: Air carrier
- Aircraft: [N4077J](https://openairdocs.org/aircraft/N4077J), 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: 11604
- Aircraft time: 6,884 hours, 1,069 cycles
- System (JASC): [2100 · Air Conditioning System](https://openairdocs.org/jasc/2100)
- Part: Computer
- Part number: 87292325V07
- Part serial: 87292325V07
- Condition: Failed
- Location: Zone 100
- Part time: 6,877 hours, 1,068 cycles
- Stage of operation: NR
- 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/YENA2025090500914

## Discrepancy

FLT#7, JFK-LHR. (ETOPS) "VENT AVNCS SYS FAULT AT THE GATE; PER MCC REQUEST REMOVED AND REPLACED AEVC COMPUTER IAW AMM 21-26-34 PERFORME TEST NO DEFECT TEST OK."

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