What specific mechanical issue caused the anomaly during the ascent of Soyuz MS-10 in October 2018?
Answer
A problem occurred with the separation of one of the four strap-on boosters
The failure that necessitated the emergency abort on the Soyuz MS-10 mission was traced back to a mechanical malfunction related to the launch vehicle's architecture. Specifically, approximately two minutes into the flight, an issue arose during the planned separation sequence of the cluster configuration's strap-on boosters attached to the core stage. When one of these boosters failed to separate correctly, it induced an anomaly, leading to a pressure spike within the system that triggered the immediate activation of the crew's emergency abort sequence.
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