The only airfield nearer the fall on the Zambian site is Maramba which I helped to build in about 1993. It started operating English built microlights and then expanded to involve helicopters of South African registration and Zambian registered C206 for charter and parachute dropping at Livingstone. There has been one helo crash since I left that I know of made by Aerospaciale. Any more details I would love to hear.