No sign or sounds of terrorism in cockpit recording from AirAsia QZ8501
(CNN)Audio recordings from the cockpit of AirAsia Flight QZ8501 contain no sounds of gunfire or explosions, making it unlikely the plane was brought down by terrorism, Indonesian investigators say.
The aircraft's cockpit voice recorder, which captures all noises on the flight deck, was recovered last week from the depths of the Java Sea, along with the other so-called black box, the flight data recorder.
"The voice from the cockpit does not show any sign of a terrorist attack. It is only the pilot, sounding very busy," Andreas Hananto, an investigator at Indonesia's National Transportation Safety Committee, said in an interview with the news agency Reuters.
He said Monday that investigators had heard "no threats" in the recordings.
"We didn't hear any voice of other persons other than the pilots," Nurcahyo Utomo, another investigator, told Reuters.
But it remains a mystery what brought down the aircraft on December 28 as it flew from the Indonesian city of Surabaya toward Singapore with 162 people on board.