Decommissioning[1]
With a total of 438 malfunctions during its operational lifetime from 1964 to 1972, the reactor at McMurdo proved to be an unreliable source of power generation, available only 72% of the time. Because of this, in May of 1972, it was determined by an independent assessment from the Bechtel Corporation that the PM-3A was not cost effective and that replacement with modern diesel-electric generators would require less staff and would also be more reliable.