Greenwich AeroGroup has made management changes on the distribution side of its operation, which includes avionics installations, parts distribution and component repair and overhaul. The new structure is headed by newly promoted Frank Cowle, who is now senior vice president of distribution, in charge of the group’s DAC International, NASAM, GCGUS and Aero Precision subsidiaries. David Miller has joined the group as president for Professional Aircraft Accessories and senior vice president for component repair and overhaul and distribution for the Greenwich group.