IOC, expanded here as initial operating capability, becomes a disputed milestone when serious problems are reported again. Alex worries that the earlier faults have not been resolved as claimed. He raises the prospect of an inquiry, without identifying one as already established. The distinction is between declaring a milestone and showing that the vehicle can perform reliably.
Notable Point · 4:26:56-4:28:39
What an Ajax operating-capability announcement establishes
Reports discussed after an IOC announcement prompt questions about what the milestone actually demonstrates.