CAMANO ISLAND, Wash. - Richard Bach, a pilot and author of the 1970s bestselling book Jonathan Livingston Seagull, was seriously injured when he flipped his small aircraft on landing at an island in northwestern Washington state, authorities said on Saturday.

Bach, 76, clipped power lines with the landing gear of his 2008 Easton Gilbert Searey as he tried to land on a grass airstrip on San Juan Island , said Michael McElrath, the dispatcher for the San Juan County Sheriff's Office.

The crash left Bach suspended upside down and strapped to his harness in the single-engine plane, McElrath said.

A group of tourists found Bach and cut him loose from the wreckage. He was bleeding and had a "dent" in his head, Lucy Williams, one of the tourists, told the San Juan Islander, a local publication.

Bach was transported by helicopter to Harborview Medical Center in Seattle. A nursing supervisor said on Saturday that he was listed in serious condition.

Please LIKE our Facebook page - it makes us stronger