The throttle levers in the cockpit of Sriwijaya Air flight SJ182 had an “anomaly” before the plane plunged into the Java Sea last month, a preliminary report has found, but the exact cause of the crash remains unclear. The irregularity in the throttle record was discovered through the flight data recorder, which was retrieved by search and rescue divers on Jan. 12, three days after the crash. The issue occurred as the aircraft climbed past 8,150 feet. “Both throttle levers showed an anomaly. The [lever controlling the] left [engine] was moving backward too far, while the right one was not moving at all – like it was stuck,” National Transportation Safety Commission (KNKT) investigator Nurcahyo Utomo said during a press conference on Wednesday. Investigators also found that the autothrottle system had been unserviceable on at least two occasions prio…