09:59 AM EST, 02/05/2025 (MT Newswires) -- RTX's (RTX) Collins Aerospace unit said Wednesday it was introducing functionality upgrades to its Pro Line 21 integrated avionics systems for in-service Cessna Citation business jets, designed and manufactured by Textron's ( TXT ) Textron Aviation unit.

Starting in H2, Pro Line 21 avionics upgrades will be available for in-service Cessna Citation CJ1+, CJ2+, CJ3, CJ4, and XLS+ fleets, featuring advanced communications, enhanced weather data, and improved flight deck connectivity, RTX said.

The upgrades will be available for purchase and installation through Textron Aviation or authorized Collins Aerospace dealers, the company said.

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