Airbus has introduced operational restrictions for A320neo-family aircraft equipped with Pratt & Whitney PW1100G geared turbofan engines, limiting takeoffs during freezing fog conditions when visibility falls below 150 meters. The measure follows reported engine performance issues in extreme winter weather and represents a significant operational consideration for airlines operating in cold-climate regions.
The restriction emerged into public view after Air Astana, Kazakhstan’s flag carrier, experienced weather-related delays at Almaty Airport on November 15, 2025. The airline attributed the disruptions to heavy engine icing impairing engine performance under freezing fog and sub-zero temperature conditions. Air Astana confirmed the limitation applies across its A320neo, A321neo, and A321LR fleet—comprising 11 A320neos, four A321neos, and 13 A321LRs.