Amazon.com Inc.‘s early win in a Georgia case over serious injuries from a fire allegedly started by a hoverboard got reversed May 16 by the Eleventh Circuit.

Plaintiff Irvin R. Love Jr. has adequately alleged Amazon knew of a fire risk at the time he bought the Weecoo self-balancing scooter, the U.S. Court of Appeals for the Eleventh Circuit said.

Amazon has been highly successful at fending off product liability claims, including some over hoverboard fires. The decision here is one of the first to find that the allegations, if proven, could be sufficient to hold Amazon liable for...