<p>➀ In 1961, Australia announced a mandate requiring airlines to install flight recorders to capture cockpit conversations and instrument data, becoming the first country to implement such a regulation;</p><p>➁ The policy followed a recommendation from an inquiry into the 1960 Fokker Friendship crash in Queensland, which highlighted the need for crashproof recording devices;</p><p>➂ The flight recorders were designed to be housed in durable containers near aircraft tails, ensuring data preservation during accidents.</p>