[1] Modifications to correct the vibration issue on previous launches by installing dampers on the LOX feed lines worked and the booster completed the strap-on burn successfully.

However, the launch was another failure as the core stage lost thrust at T+245 seconds.

Engine performance fell to 70% and it began deviating from its flight trajectory.

The AVD system terminated thrust and the booster fell 4,200 km (2,609 miles) downrange.

Investigation found that a gear of the core stage hydrogen peroxide pump was improperly lubricated and failed during flight, causing loss of turbopump performance and engine thrust.