An updated medical report says Knopp was denied medical certification to fly because he had glaucoma in both eyes that led to a reduced field of vision.
"Greg Bell"
NTSB: Alaska lawmaker killed in midair crash did not have required medical certificate
Rep. Gary Knopp was denied a medical certificate in June 2012 because of vision problems.
Kenai community remembers longtime pilot killed in plane crash
Friends, colleagues and clients remembered him as a cheerful, skilled pilot and a man of faith.