“Sikorsky Aircraft Corp. will pay a fine of $176,000 to settle an EPA complaint for violations of the federal stratospheric ozone protection regulations and two federal hazardous air pollutant standards…Sikorsky, a subsidiary of United Technologies Corp., is a helicopter manufacturer with a major plant in Stratford, Conn. EPA’s complaint alleged that Sikorsky violated leak repair and follow-up testing requirements for two industrial refrigeration units that used chlorofluorocarbons (“CFCs”) or other ozone-depleting substances as refrigerants.”