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Investigators determined the probable cause of the crash to be "The failure of the pilot-in-command to arrest in time the fast descent at a low altitude upon which he had erroneously decided, instead of executing a missed approach when he found himself too high over the locator beacon."4
^Germano da Silva, Carlos Ari César (2008). "Armadilha na aproximação". O rastro da bruxa: história da aviação comercial brasileira no século XX através dos seus acidentes 1928-1996 (in Portuguese) (2 ed.). Porto Alegre: EDIPUCRS. pp. 249–255. ISBN978-85-7430-760-2.