The deal, with the private equity firm Thoma Bravo, will help the struggling aerospace manufacturer pay down debt and streamline its operations.

Boeing announced on Tuesday that it would sell a handful of navigation, flight planning and other businesses for more than $10.5 billion as the company works to refocus on manufacturing planes and other aircraft.

The company, which also wants to reduce its large debt, said it would sell four businesses from a digital unit to Thoma Bravo, a private equity firm specializing in software. Those include Jeppesen, which provides navigational charts and information to pilots, and ForeFlight, an app that helps plan flights and monitor weather.

“This transaction is an important component of our strategy to focus on core businesses, supplement the balance sheet and prioritize the investment-grade credit rating,” Kelly Ortberg, Boeing’s chief executive, said in a statement.

The company said it expected to close the all-cash deal by the end

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