I lived near the school at the time and saw the helicopter landing in that direction and went to investigate. I cannot recall if there was an event on but it may have been a school function. The helicopter stayed for a while and left and I don't know the reason for its visit.
History of this aircraft from the Museum website copied below The Bell Jet Ranger III helicopter, Dick Smith Australian Explorer, was flown by Australian businessman and adventurer Dick Smith on the first solo circumnavigation of the world in a rotary wing aircraft in 1982/3. The flight was also the first solo helicopter flight across the Atlantic Ocean and the first solo flight from the U.S.A. to Australia by helicopter. The flight was taken over three stages from Fort Worth, Texas to London, London to Sydney and Sydney back to Fort Worth. Over 55,000 km was traveled in 260 hours of flying