Odd Language #175: Taking Over

“The executive officer in his acceleration couch had taken over when Riedel regained full consciousness.” – David Drake, The Miltary Dimension, p. 194

The issue: When Riedel regained consciousness, he found that the executive officer had taken over OR the executive officer took over when when Riedel regained consciousness. Presumably, it was the former, but the latter is also a valid reading.