HONOLULU (KHON2) -- The U.S. Coast Guard airlifted a 51-year-old man off of a fishing boat off the Honokaa coast Monday night after he sustained an abdominal injury.  Get Hawaii's latest morning news delivered to your inbox, sign up for News 2 You Authorities were alerted by the captain of the boat after the man fell into a porthole, injuring himself.  Find more Hawaii, Oahu, Maui and Kauai news here The man was transported to the airport in Hilo where he received EMS care and is in stable condition.