JAKARTA: Indonesia’s air accident investigator has despatched 5 elements of a crashed Sriwijaya Air jet to the United States and Britain for examination, together with the autothrottle that controls engine energy robotically, the company’s head mentioned on Tuesday.
The 26-year-old Boeing Co 737-500 crashed into the Java Sea shortly after takeoff from Jakarta on Jan 9, killing all 62 folks on board.
National Transportation Safety Committee (KNKT) Chief Soerjanto Tjahjono instructed Reuters the elements had been despatched for examination to assist discover out why an autothrottle parameter had modified. He didn’t determine the opposite parts.
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The plane’s flight knowledge recorder (FDR) has been discovered and browse by investigators however a maritime search is happening for the cockpit voice recorder’s (CVR) reminiscence unit that Tjahjono mentioned would assist clarify any human elements behind the crash.
“If we only have the FDR, we do not know why the parameter changed, what was the reason,” he mentioned of the autothrottle. “We need confirmation from the components that we sent to the US and UK and the CVR.”
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KNKT mentioned final month it was investigating whether or not an issue with the autothrottle system contributed to the crash given a problem with it had been reported on a flight just a few days earlier.
It is suitable for a plane to fly with an autothrottle system that’s not working as a result of pilots can management it manually as an alternative.
KNKT plans to subject a preliminary report into the crash quickly, presumably on Feb. 9, Tjahjono mentioned.
Citing sources shut to the investigation, the Wall Street Journal (WSJ) final month reported the FDR knowledge confirmed the autothrottle system was not working correctly on one of many plane’s engines because it climbed on departure from Jakarta.
Instead of shutting off the system, the FDR indicated the pilots tried to get the caught throttle to operate, the WSJ mentioned. That might create vital variations in energy between engines, making the jet more durable to management.
Tjahjono mentioned the WSJ report was incorrect and extra information could be offered within the KNKT’s preliminary report.