# SDR AALA202607301669

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2026
- Submitted: July 30, 2026
- Operation: Air carrier
- Aircraft: [N189UW](https://openairdocs.org/aircraft/N189UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1425
- Aircraft time: 79,927 hours, 31,029 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- Part number: EVT3454HM01
- Part serial: 164904694
- Condition: Faulted
- Location: Zone 100
- Part time: 28,589 hours, 11,867 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202607301669

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INBOUND INTO CLT DUE TO THE FLIGHT CREW REPORTING LOW FREQUENCY VIBRATION AND NOISE FROM UNDER FLIGHT DECK LAST HALF OF FLIGHT. 30 MIN OUT WENT SILENT, MOMENTARILY FUME SMELL AND VENT EXTRACT FAULT. FUMES QUICKLY DISSIPATED AFTER EXTRACT TO OVERIDE PER ECAM. THE AIRCRAFT LANDED SAFELY AT CLT WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED JC 26L00021001, FOUND EXTRACT FAN 18HQ CAUSE OF ODOR. REPLACED EXTRACT FAN 18HQ PER AMM 21-26-51 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.

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