 Through bad planning, weather and bad luck, 25 of the 64 ships underway on the Northern Route in 1937 were out of action – at least until next spring; one, "Rabochiy", was lost.Only in April 1938 did "Krasin", resupplied from the coastal coal dumps, break through and release "Litke" and its transports.The failures of 1937 were used as a pretext for replacing the Northern Sea Route management, and at least 673 men fell victims to the Great Purge.