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JAKARTA, Nov. 2 (Xinhua) -- Indonesia's National Transportation Safety Committee (KNKT) would publish preliminary results of its examination on content of crashed Lion Air's blackbox next month, a KNKT investigator said.

KNKT investigator Oni Soerjo Wibowo said the preliminary results would contain data and facts about what happened to the crashed plane without complete explanations of KNKT analysis nor the conclusions on factors leading to the crash.

"The public have the rights for that information," Oni said in KNKT office, adding that the publishing of the preliminary results was mandated according to transportation ministerial regulation.

Apart from 1-month preliminary results obligation, KNKT was given 1-year period to settle investigation into the crash, Oni said.

Indonesian searchers managed to retrieve the Flight Data Recorder (FDR), part of two sections of a blackbox, of the crashed Lion Air plane on Thursday at a depth of 32 meter below the surface of waters off Karawang regency in West Java province.

Efforts to search the other part of the blackbox, Cockpit Voice Recorder (CVR), were underway at present.

Oni said KNKT has downloaded the data recorded in the crashed plane's FDR.

He, however, said that the FDR was found fragmented, may lead to difficulties for investigators to examine the recordings in it.

"We have yet to know its service ability after it was fragmented," he said.

Commenting on the CVR section which was yet to be found, Oni said KNKT has the other methods to complete the investigation without CVR.

"But it would be better if the CVR is found, if not we still have many alternatives to research towards the situations that led to the crash," he added.

Lion Air JT 610 with 189 people onboard crashed enroute to Pangkalpinang from Jakarta on Monday morning.

A KNKT official said earlier that the brand new Boeing 737 Max 8 plane dived at rapid speed from an altitude of 3,000 feet and plummeted into the sea a few minutes after it took off.