APRIL 18th, 1991. Time: 05:50. Duration: 25 minutes. A miltary in service at the COPM1 [Military Operations Center] of CINDACTA [Integrated Center for Air Defense and Air Traffic Control] reported the detection of several unidentified flying objects that interfered with the route of a passenger plane. According to the information from the reporting witness, the UFO was “visualized in 2 displacements on the APP-BR TA 10M radar, starting from NE (RD 050) + 45NM towards BR until 5NM and afterwards, moving away to the South until it disappeared”. ” The position of the unknown objects was “AZ 050 / 40NM BR up to 50NM”, at a speed “estimated at .9 Mach”. According to the witness, “5 radar contacts at a time” appeared, making a “2309 course up to 5NM from Brasilia, stopped and after another shift to the South”
Complementary data from COMDABRA [Brazilian Aerospace Defense Command]:
“Arriving at COPM1 at 08: 45Z, I was asked to appear at APP-BR. Upon arriving, 1S […] informed me that I had already observed a radar contact 3 times primary that appeared at 45NM on radial 050, approached up to 5NM from Brasilia, stopped for a few snapshots and resumed its displacement with bow 1809 until it disappeared. I observed the fact, confirming it twice. I estimated the speed at .9 Mach (35 seconds for 5W) In the second observation the contact came at 8 am (+ 8NM) of the VRG 291, coming from SBTE, going down, crossing FL 160. 0 VRG 291 was instructed to keep the SSR in STBY and turn right, having bypassed by the radar contact at + 10NM. Coincidentally, when it was overtaken by the unknown radar contact, the VRG 291 complained that the transmission of the APP BR (119.2) was accompanied by loud noise, by comparison, the unknown contact and the B737 contact of the VRG 291 had the same brightness. “
“There was video recording of LP-23 do Gama, but the contacts corresponding to the contact position of the TA-10 appeared only in the form of plots, not becoming chains”.
Consult this file to see the drawing made by the reporting wtiness: BR_DFANBSB_ARX_0_0_0306_d0001de0001
Cf. ARQUIVO NACIONAL (Brasil). Sistema de Informações do Arquivo Nacional (SIAN). Fundo ‘Objeto Voador Não Identificado (OVNI)’. Código de Referência BR DFANBSB ARX.0.0.306. “Questionário sobre ocorrência de objeto voador não identificado na região de Brasília, Distrito Federal”. Brasília, DF. 1952 a 2015. Último acesso realizado em 27/05/2020.
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