"In case of an emergency, you, as the crew commander, have to ensure the safety of all the members in the Russian section or in Soyuz, depending on the graveness of the situation", Solovyev told Kononenko on Friday. Solovyev recommended the cosmonaut to monitor the docking through an illuminator.
He added that US astronauts would also be monitoring the process from their section and would be ready to close off the station's hatches if they see an emergency is likely to happen during the docking.
NASA officials initially said that their Russian colleagues had concerns related to the US agency’s lack of a backup computer system to prevent Crew Dragon from colliding with the ISS if the vehicle goes dead. However, the sides subsequently reached a consensus on the docking procedure.
Crew Dragon, also known as Dragon 2, is a reusable spacecraft designed as a successor to the Dragon space freighter.