Internet says it was not finished yet, and being constructed by russians as cheap as possible is probably the reason the PK-700 Grigory Prosyankin capsized. It allegedly should assist in construction and loading of vessels in Severodvinsk shipyard (where nuclear submarines are constructed) - the crane is one of very few in its size class; Construction was started in 2018 but slowed to a crawl since 2020 due to financial issues. It sank during loading operations, meaning they already used their half-finished crane for years; 2 people died, and more than 20 were injured.
Internet says it was not finished yet, and being constructed by russians as cheap as possible is probably the reason the PK-700 Grigory Prosyankin capsized. It allegedly should assist in construction and loading of vessels in Severodvinsk shipyard (where nuclear submarines are constructed) - the crane is one of very few in its size class; Construction was started in 2018 but slowed to a crawl since 2020 due to financial issues. It sank during loading operations, meaning they already used their half-finished crane for years; 2 people died, and more than 20 were injured.
e: sources: https://knowledgeengine.quora.com/Just-Brilliant-Unfinished-Russian-Crane-Capsizes-in-Occupied-Sevastopol https://www.linkedin.com/posts/marijnmarkus_ukraine-activity-7389048801837080578-5uMT