(Bloomberg) -- Indonesia found the cockpit voice recorder from the Lion Air aircraft that crashed in October minutes, giving investigators a real chance at solving the mystery of what brought down a modern jet.

The CVR of the Boeing Co. 737 Max aircraft was intact when it was recovered in the Java Sea, according to Indonesia’s Navy spokesman Agung Nugroho. The plane’s flight data recorder from the plane was found in November. Together, the two devices are known as the black box of an aircraft.

Poor safety procedures and the inability of pilots to gain control of a malfunctioning airplane may have contributed to the crash of Lion Air flight JT610 that killed 189 people, according to a preliminary report by Indonesian investigators in November.

To contact the reporter on this story: Kyunghee Park in Singapore at kpark3@bloomberg.net

To contact the editor responsible for this story: Anand Krishnamoorthy at anandk@bloomberg.net

©2019 Bloomberg L.P.