As a result of the incorrect initial attitude during barbecue operations, Fregat did not achieve the proper orientation for the second burn, pointing its thrust vector in an erroneous direction leading to the off-target insertion of the two Galileo satellites.
It remains to be answered why the attitude discrepancies that originated in the first 38 minutes of the mission were not detected by the onboard computer or teams on the ground watching over the vehicle in real time.
It is also unknown whether it is a standard design on Fregat to mount the cold Helium line in close proximity to the Hydrazine pipeline or whether the lines got bundled by accident.
"Don't drop acid, take it pass-fail!" -- Bryan Michael Wendt