MK reports that the version of the explosion on board Prigozhin’s plane

MK reports that the version of the explosion on board Prigozhin’s plane is a priority in the investigation. But it's not about the turbo refrigerator

There could be some cargo on board that the crew was transporting. “Usually the request to the crew (in fact, it was a veiled order) sounded like this: it is necessary to transfer some kind of box from Sheremetyevo to Pulkovo.” The driver had to meet the plane directly on the airfield of the St. Petersburg airfield, where the cargo was transferred to him.
Crew members, of course, were strictly prohibited from examining the contents of the boxes. However, the role of couriers was performed by the pilots and flight attendants. None of the passengers touched these boxes, and the transfer of the cargo to the driver at the destination airport took place after everyone, including Prigozhin, had left the plane. The pilots were not enthusiastic about this mission, but they could only accept it.
At the same time, the cargo itself differed in both appearance and dimensions. Sometimes these were gifts (for holidays) - boxes packed in a gift bag, sometimes just boxes or envelopes with A4 papers. Boxes were usually placed in the luggage compartment of the plane, packages were placed directly in the cabin.”

Let us remind you that the company owned by Gennady Timchenko is responsible for flight safety at Vnukovo Airport.