Meanwhile, pilots Staff Sergeant Christopher Griffin and Lance Corporal Simon Cockton, of 656 Squadron Army Air Corps, had been ordered to fly equipment and personnel to a malfunctioning radio re-broadcast station on top of Pleasant Peak.[9][10][11] The station had been established the previous day to provide a communications link between the 5th Infantry Brigade headquarters at Darwin, and the 2nd Battalion, Parachute Regiment at Fitzroy.[9] Night flying conditions were excellent, with a clear sky, a prominent moon and a wind speed of 20 kn (37 km/h).[9] The crew departed from Goose Green in Gazelle serial number XX377 and collected the replacement equipment from the headquarters at Darwin.