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"Concerning international investigations or audits, the IAC's technical commission and experts would be ready to provide the relevant substantiation and explanations at any professional level," Anodina told the conference.
"We are strictly guided by the Chicago Convention and the air accident investigation rules," she said.
Anodina also stressed there was no pressure exerted on the IAC during its investigation.
"As a professional, I have not encountered any form of pressure while working for the IAC," she said.
Earlier on Wednesday, the IAC said on its website it had handed the final report to the authorized representative of Poland via the Polish embassy in Russia.
Local media reported the Polish side had passed back the report with its comments to the Russian state commission on Wednesday.
In December, Polish Prime Minister Donald Tusk rejected a draft of the final report, saying the probe was "unacceptable".
Russian authorities promised in October they would not publish the findings until Poland commented on it.
According to preliminary findings released earlier last year, the crew ignored warnings that heavy fog made conditions unsuitable for landing.