A Soviet-era plane that crashed in Russia’s Far East was nearly 50 years old and had recently had its lifespan extended by another decade, highlighting the country’s continued use of ageing passenger jets. The smoldering wreckage of the Angara Airlines An-24 airplane was found on Thursday in the remote Amur region, which borders China. Estimates of the number of people on board vary, but around 49 people, including crew members, are believed to have died. Officials, who have begun a criminal investigation into the circumstances of the disaster, said there were no survivors. The incident has laid bare Russia’s dependency...