On 30 March 1918 near Mansuè, Italy, Lieutenant Jerrard, with two other officers, Peter Carpenter and Harold Ross Eycott-Martin, on offensive patrol, shot down one of five enemy aircraft. Then flying at 50 ft. he attacked an aerodrome with some 19 machines either landing or attempting to take off. After destroying one of these he was attacked by more enemy aircraft but, seeing a brother-officer in difficulties, went to assist him, destroying a third enemy machine, then continued his attacks, only retreating, with five machines in pursuit, on the orders of the patrol leader. Even then, he repeatedly turned to beat off the enemy until finally forced down.