Updated

A longtime pilot and flight instructor from Alaska has died after his biplane crashed during an air show in central Oregon.

Sixty-one-year-old Marcus Bruce Paine appeared to be attempting a very low-altitude loop when his Boeing Stearman plane went down at about 3 p.m. Saturday.

Jefferson County Sheriff Jim Adkins says officials with the Federal Aviation Administration were attending the Airshow of the Cascades at Madras Airport when the crash occurred. He says the agency is investigating, along with the sheriff's office and the Madras Police Department.

The airshow's website says Paine lived in Anchorage, had extensive military experience and was a pilot for more than 20 years. It says Paine's flight school teaches aerobatic flight, stall and spin awareness and other topics.