Superjet probe gains clarity over accident sequence

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Icelandic investigators are preparing to present preliminary findings to the board regarding the Sukhoi Superjet 100 accident at Reykjavik earlier this year.

The inquiry by Iceland's RNF authority expects, however, that conclusions will not be made public for another two or three months.

One of Sukhoi's test aircraft had been performing touch-and-go manoeuvres on 21 July when the aircraft failed to climb away and landed, with retracted gear, on Keflavik's runway 11.

Lead investigator Ragnar Gudmundsson says data from the flight recorders has been downloaded and analysed.

"We have a fairly good idea what happened," he says, but states that the findings cannot yet be made public.

Sukhoi had quickly claimed that all aircraft systems had been functioning normally, but Gudmundsson is unable to say whether there was evidence of a technical issue.

He says a meeting is due to be held with the RNF investigation board next week during which the state of the Superjet probe will be discussed.

None of the five occupants of the twinjet was seriously injured. The aircraft had been conducting Category IIIa certification tests at the time.