At 0802 mountain time, a Cessna 150J was damaged during a forced landing near Four Corners Regional Airport. The pilot suffered serious injuries. The flight had originated at Aztec at approximately 0745. The tower operator said that, as the airplane was entering a left base for runway 07, a expletive was heard over the tower frequency and shortly thereafter an emergency locator transmitter signal was heard. Emergency personnel said they arrived on the scene to find the pilot had already pulled himself out of the inverted airplane and was sitting on the wing. The pilot told them dont worry about a fire, theres no fuel.