The tragic death of a Berks County man at Pennsylvania's largest fair has been ruled an accident, authorities said Monday.

Close friends remembered Carl Enlow as a doctor, pilot and a veteran.

"He loved to reminisce, and I loved to ask questions," said Doug Paris, who knew Enlow for about 20 years.

Enlow, 69, of Birdsboro, was filled with good stories and good advice, but his death left his friends asking how could this happen?

"He was a conscientious pilot and was very very careful," said Pete Dadey, who knew Enlow for years.

Enlow was killed when he walked into a helicopter's spinning rotor, authorities said.

The freak accident happened Friday, the last night of the Bloomsburg Fair in Columbia County. The helicopter was refueling, and Enlow went back to speak with another pilot. His hat blew off in the wind, and when he reached to get it, that's when he was struck, said officials.

Enlow was a fixture at the fair. He always gave rides to young children, and lended a helping hand to others.

"He was a very sweet man with a heart of gold, and we really appreciated everything he did," said Dawn Kingston, who worked at the fair.

Enlow was a pilot in the military, and his friends said he had more than 50 years of experience.

"He liked to tell a story, he liked to laugh and he was just a good friend to everyone. He was a genuine person," said Paris.

For many people, Enlow was better known as "Doc." He was a chiropractor in Berks County for more than 30 years.

"I'm going to miss being able to ask him a question, and he was able to answer it and give me advice," said Sandy Paris, who was a patient since 1885.

Enlow and his wife, Connie, spent time in both Berks and Florida. Connie told their friends her husband pretty much lived three lifetimes in his 69 years.

"He never let any grass grow under his feet. He was very active and always involved in something," said Sandy Paris.