From ArsTechnica:
Given how well the Kuznetsov "works" under usual circumstances, I doubt the damage is a big deal, relatively speaking.Russia's one and only aircraft carrier, the Admiral Kuznetsov, is in the middle of a long-forestalled refit in Murmansk. But its repairs may take a bit longer now that the floating dry dock that was carrying it at Murmansk's Shipyard 82 suddenly sank—causing a giant crane to crash onto the Kuznetsov and gash a 16-foot hole in its hull. One shipyard worker is missing, and four others were hospitalized—two of them in critical condition.
The floating dry dock, the PD-50—one of the largest in the world—apparently sank as the result of a power outage following a power surge at the shipyard, possibly related to damage to power lines caused by ice.
According to the press officer of the Zvezdochka Ship Repair Center, Evgeny Gladyshev, the accident occurred while the Kuznetsov was being floated out of the dock. "When the 82nd Shipyard was launching the Admiral Kuznetsov, an emergency situation occurred," Gladyshev explained to Interfax. "Due to interruptions in the supply of electric power to the PD-50, the floating dock dived out in an off-design mode."
That's how it looks when it's normally underway.
Majestic.