RedactedNarrative: Vessel was loaded with two adults and two children preparing to leave from the dock. The boat is a 1989 Sea-Ray with an inboard motor equipped with a blower system. The blowers were not used and fumes caused a flash fire injuring two of the four occupants. One female child sustained moderate to severe burns to approximately 14% of her body and one adult male sustained moderate to severe burns to his leg. The two people are being treated at a regional burn center.