Prigozhin, two top lieutenants of his Wagner Group and four bodyguards were among 10 people who died when the Embraer Legacy 600 crashed north of Moscow last week.
He died two months to the day after staging a brief mutiny against the Russian defense establishment that posed the biggest challenge to President Vladimir Putin’s rule since he rose to power in 1999.
Brazil’s Center for Research and Prevention of Aeronautical Accidents (CENIPA), in the interests of improving aviation safety, had said it would join a Russian-led investigation if it were invited and the probe held under international rules.
Russia’s aviation authority was not obligated to say yes to CENIPA, but some former investigators said it should, as the U.S. and other Western governments suspect the Kremlin of being behind the Aug. 23 crash of the Embraer Legacy 600, which has a good safety record.
The Kremlin denies any involvement.
According to the Montreal-based United Nations International Civil Aviation Organization (ICAO), the flight from Moscow with a destination of St Petersburg was domestic, so it is not subject to international rules known throughout the industry by their legal name “Annex 13.”
“They are not obliged, only recommended to do that,” CENIPA head Air Brigadier Marcelo Moreno told Reuters after the agency sent an email asking Russia whether it would open such a probe.
“But if they say they’ll open the investigation and invite Brazil we will participate from afar.”
Prigozhin was publicly critical of Moscow’s prosecution of its invasion of Ukraine. The Wagner mercenaries fought battles there on Russia’s side.