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At 10:15 AM on the day of the flight, the Kinger C90 was refueled with Jet A1 aviation fuel, sufficient for its mission. The captain and co-pilot held a briefing with the operations director to review necessary meteorological and navigational information. The operational plan allowed the King Air to take off at noon, flying under instrument flight rules until near Caratinga, where they would switch to visual flight procedures.
As Marília Mendonça and her fellow passengers arrived, the take-off was delayed due to their late arrival. The aircraft was scheduled to depart at 1 PM. The taxiing company, which had over 16 years of operation experience, ensured its training and operations adhered to aviation regulations.