Report on UAP Incidents of May 19-20, 1986

This document is a comprehensive collection of reports, logs, and press clippings regarding a series of Unidentified Aerial Phenomena (UAP) incidents that occurred in Brazil on the night of May 19-20, 1986. The events began when the tower at São José dos Campos reported unidentified lights near the aerodrome. This triggered a massive military response involving the Brazilian Air Force (FAB), including the scrambling of Mirage and F-5E fighter jets from Anápolis and Santa Cruz. Throughout the night, radar operators at Cindacta and pilots in the air tracked multiple unidentified targets. Pilots reported visual contact with lights that changed color—pulsing between green, red, and white—and exhibited extreme speeds and evasive maneuvers, including ziguezague patterns. Several pilots attempted to intercept the objects, but were unable to close the distance or maintain a stable radar lock, as the objects would often disappear or move away at high speeds. The document includes detailed transcripts of the incident logs, individual reports from the pilots involved, and subsequent press coverage. The Minister of Aeronautics, Brigadeiro Octávio Moreira Lima, publicly acknowledged the events, describing them as 'inexplicable' and 'fantastic,' while noting that the objects were detected by radar and seen by multiple witnesses. The reports highlight that the objects did not follow standard flight patterns and that onboard aircraft instruments, such as the HSI and DME, experienced interference during the encounters. The document also contains later analysis and commentary from the Brazilian Society for the Study of Flying Discs (SBEDV), which contextualizes these events within a broader history of UAP sightings in Brazil and discusses various theories, including extraterrestrial origins and potential electronic warfare.