Malaysia Airlines Flight 370 took off from Kuala Lumpur just after midnight on March 8, 2014. Aviation officials lost contact with the flight less than an hour later. MH370 never made it to its destination, and the 239 people on board were never found. Ten years later, what happened to the plane is still aviation’s biggest mystery.

In the wake of the accident, regulators proposed a key safety change that could prevent a plane from disappearing again. But after a decade, most planes are still not outfitted with the proposed tracking tools. On today’s Big Take podcast, Bloomberg reporter Angus Whitley shares why the airline industry has been slow to learn from the lessons of MH370 — and what that means for the odds of another disaster like it happening again.