Hydroplane pilot Kayleigh Perkins Mallory, racing a red "Foster Care" team Unlimited Light craft, was returning to the dock after completing several test laps in the water between Mercer Island and Seattle when an explosion and fire occurred. North Bend resident Mallory, 23, was able to jump off the hull and swim back to shore unharmed.

"It was an engine fire, but we're not sure of the cause," said event pit boss Mark Mallory, who is also her father-in-law. "She got out OK."

Mallory is well-known in racing circles for being the first woman to drive a turbine-powered unlimited hydroplane. The fire seriously damaged the hull of her watercraft and may have been caused by a fuel line or fuel system issue.