TAM Transportes Aéreos Regionais Flight 402 was a scheduled domestic passenger flight traveling from São Paulo to the city of Brasília. The aircraft, an Embraer EMB-120 Brasília, was approaching São Paulo's Congonhas Airport when it crashed on October 31, 1996. The flight was operating under challenging weather conditions characterized by heavy rain and low visibility. As it attempted to land, the pilots lost control of the aircraft, which then crashed into a residential area near the airport. Tragically, of the 99 people on board, all but one perished in the accident, with additional casualties occurring on the ground as the aircraft impacted houses and vehicles.The investigation following the crash revealed critical issues surrounding pilot training, weather assessment, and the aircraft's operational limits. It brought to light the inadequacies of the airline's safety measures and practices in responding to severe weather. The National Civil Aviation Agency of Brazil, along with the investigation authorities, scrutinized the existing regulations and the need for enhancing safety training for pilots operating in unpredictable weather conditions. The public reaction to the crash was significant, prompting discussions about transport safety standards and regulatory compliance in the aviation industry in Brazil.