Sukhoi Superjet crash findings report being finalised

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Indonesia's National Transport Safety Committee has sent its investigation report of the Sukhoi Superjet 100 crash on 9 May to the various parties involved.

These include Indonesia's ministry of transport, Russian regulators, as well as American and French suppliers to the SSJ100.

The final investigation report is expected to be released shortly, after the parties respond to the findings, the case's chief investigator Mardjono Siswosuwarno tells Flightglobal.

He would not disclose more about the findings except to say that it is "a lot more in-depth" than the preliminary information released in August as it includes findings from the aircraft's flight data and cockpit voice recorders.

The SSJ100 aircraft, with serial number 95004 and tail number 97004, was scheduled for a 30min demonstration flight. It had been due to take off from Jakarta's Halim Perdana Kusuma airport before heading to Pelabuhan Ratu, an area in West Java, and then returning to the airport.

Preliminary findings show that the aircraft had been cleared to descend below the minimum safe altitude for the area.

Weather information for the time of the incident indicated a cloud base of about 2,000ft (610m) with substantial cloud cover and cumulonimbus activity in the vicinity. Neither pilot was found to have any traces of alcohol or drugs in their system.

None of the 45 occupants - comprising two pilots, a navigator, test-flight engineer and 41 passengers - survived the crash.