Ocorrência sobre Objeto Voador Não Identificado — 07 Abril 84

This document is a collection of reports and internal correspondence from the Brazilian Ministry of Aeronautics regarding Unidentified Aerial Phenomena (UAP) sightings in 1984. The primary incident detailed involves a report from April 7, 1984, in Brasília, where a witness, identified as a reserve officer and architect, observed a cylindrical object with rounded ends. The object was estimated to be 100 meters long, dark aluminum in color, and flying at an altitude of approximately 500 meters. The witness reported that the object moved at a speed comparable to a jet, emitted no sound, and left no trail. The observation lasted for 10 minutes under clear, sunny weather conditions. The witness was accompanied by his wife and a visitor during the sighting. The document also includes transcripts of radio communications between various air traffic control centers (APP-GO, ACC-BS, TWR-SP, TWR-SJ) from October and November 1984. These transcripts reveal significant confusion and concern among air traffic controllers regarding multiple unidentified radar plots appearing in the vicinity of São Paulo and Brasília. Controllers frequently discussed the presence of these plots, noting their movement patterns, speed changes, and the lack of corresponding radar detection in certain sectors. There is a recurring theme of skepticism mixed with professional concern, as controllers attempted to distinguish these unidentified plots from known aircraft, balloons, or meteorological phenomena. The transcripts capture informal discussions between controllers who expressed frustration at the lack of clear procedures for handling such events and the inability of the Air Defense system to provide meaningful intervention. The document concludes with suggestions from an officer, Ademir Freitas, proposing that the Command of the Metropolitan Area (COpM) centralize information on UAP sightings, adopt a standardized questionnaire for reporting, and ensure that video recordings of such events are preserved rather than erased. The dossier serves as an official record of the military's attempt to document and manage these anomalous aerial occurrences within the Brazilian airspace during the mid-1980s.