A Samsung Galaxy Note 7 caught fire on a Southwest Airlines flight in Louisville, Ky., this morning, forcing the plane to be evacuated and causing damage to the plane's carpeting. The owner, Brian Green, says the Note7 was a replacement device with a marked box indicating the phone was safe. He swapped out his original Note7 at an AT&T store on Sept. 21. Replacement phones are supposed to have safe batteries and pose no risk of fire. The phone was powered down in Green's pocket when it overheated. Green tossed the phone on the floor where it began to emit smoke and eventually caught fire. The plane was still at the gate and Southwest evacuated the aircraft. No one was injured. Samsung initially expressed doubt about the phone's status as a replacement, but said it will work with authorities to determine the cause of the fire. Samsung was forced to recall the Note7 last month amid instances of it burning owners and igniting fires.