Boeing Co. agreed to sell its Jeppesen navigation unit and related assets to Thoma Bravo for $10.6 billion in cash, handing the planemaker funds it can use to lighten its debt load.

Technology-focused buyout firm Thoma Bravo is in advanced talks to acquire Boeing's Jeppesen navigation unit, with an announcement anticipated later this week, Bloomberg News reported on Monday, citing people familiar with the matter.

Software investment firm Thoma Bravo has emerged as the winning bidder for a slew of Boeing assets being divested, including Jeppesen, ForeFlight, AerData and OzRunways. The all-cash transaction, announced April 22, is valued at $10.55 billion, according to the companies. The asset sales were long...