Camba Punat Airport (Argentina) — August 2, 1962
Luis Harvey, air- port manager, and his staff thought that an un- announced aircraft was about to land, as they saw a luminous object circling at high speed. It came down to hover about 1 m above the runway for some four min. It was spherical, spinning, and emitted flashes of blue, green and orange. When approached, it took off at very high speed. (FSR 64, 4)
Source: Passport to Magonia
Case: 540