A U.S. Coast Guard plane and a Mexican Navy vessel are searching the Gulf of Mexico for a small plane and the surgeon who flew it far beyond his Louisiana destination. The Coast Guard said Thursday that Steven Schumacher’s family reported him overdue at 10:30 p.m. Wednesday, two hours after he was scheduled to land near Baton Rouge, Louisiana. A Coast Guard spokeswoman says an online flight tracker showed the plane’s last known position around 11:40 p.m. that night, about 440 miles past Louisiana’s coast. FAA spokesman Lynn Lunsford says Schumacher never checked onto the Houston air traffic control center’s frequency and didn’t respond to attempts to contact him. St. Francis Healthcare System of Cape Girardeau says he’s a trauma surgeon with partner organization Cape Trauma Specialists.