A helicopter pilot suffered critical injuries Sunday after his aircraft crash at about 4:30 p.m. at Kenosha Regional Airport. The pilot, an unidentified male, was the only one on board, Kenosha Fire Department Chief Charles Leipzig said. A Flight for Life medical helicopter was called to transport the man, most likely to Froedtert Hospital in Wauwatosa, Leipzig said. The pilot was coming back from a flight and started to hover and lose control of the aircraft at about 35 feet, Leipzig said. The pilot was trapped in the helicopter for about two to three minutes after impact, he said.