Ruptured Duct Caused Proton Failure, Russian Commission Finds

A rupture in the duct linking the gas generator and the turbomachinery in its main engine caused the Proton/Breeze M upper stage to shut down 2 min. early, stranding the AMC 14 satellite in a useless orbit following its Mar. 15 launch. A Russian state commission ordered Khrunichev, manufacturer of...

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