Radio contact was lost towards the end but the firm said it was "incredible to see how far we got this time around". They lost contact with it, presumably because it had broken up and according to some, the fact the craft didn't survive re-entry to splashdown would be a disappointment, it still represents a major step forward in the development of the world's most powerful rocket.
The FAA said, a mishap occurred during the SpaceX Starship OFT-3 mission that launched from Boca Chica, Texas, on 14th March. The mishap involved both the Super Heavy booster and the Starship vehicle.
No public injuries or public property damage have been reported. The FAA is overseeing the SpaceX-led mishap investigation to ensure the company complies with its FAA-approved mishap investigation plan and other regulatory requirements.
A mishap investigation is designed to further enhance public safety, determine the root cause of the event, and identify corrective actions to avoid it from happening again.
SpaceX will not need to worry though, the FAA is taking a back seat in the investigation process allowing Musk's space firm to say what went wrong and what went right and the regulator would then rubber stamp whatever SpaceX’s final report says, including any corrective actions.
A return to flight is based on the FAA determining that any system, process, or procedure related to the mishap does not affect public safety. In addition, SpaceX may need to modify its license to incorporate any corrective actions and meet all other licensing requirements.