Indonesian investigators released a preliminary report into a recent crash overnight. It revealed they are finding it hard to understand what happened to the Sriwijaya Air jet to cause it to crash after takeoff from Jakarta airport on 9 January killing all 62 people on board. That’s because divers were able to recover the flight-data recorder but could not find the memory unit from the cockpit voice recorder. Divers are still searching for the module that would reveal what the pilots were saying about what was happening. For now, investigators are working on the theory that a malfunctioning automatic throttle reduced the power output of the aircraft’s left engine. The right engine remained steady, forcing the plane to roll. “We can’t conclude anything just yet,” said investigator Nurcahyo Utomo.