Brendan Byrne

Now we're putting it in action.

NASA is still proceeding with a crew test flight around the moon and back that could launch as early as April.

For NPR News, I'm Brendan Byrne in Orlando.

NASA identified 58-year-old Mike Fink as the crew member who experienced a medical event on the station.

In a statement, Fink said the health problem required immediate attention, and thanks to the quick response of his crewmates, his status stabilized.

That medical issue prompted NASA to bring the entire crew back home a month early so Fink could receive additional care back on the ground.

NASA has not released details on what type of medical issue Fink experienced.

The early departure left the space station short-staffed.

A replacement crew arrived at the station earlier this month.

For NPR News, I'm Brendan Byrne in Orlando.

NASA will not fly another crew on Starliner until technical causes are understood and corrected.

The propulsion system is fully qualified and appropriate investigation recommendations are implemented.

The investigation identified multiple problems with the mission.

Starliner's thrusters failed during docking, reducing the crew's ability to steer and dock the spacecraft.

It also identified concerns with leadership and how decisions were made by both Boeing and NASA.

NASA Administrator Jared Isaacman says the investigation still hasn't identified the root cause for the thruster failure, and Boeing and NASA are continuing to analyze what happened.

The agency is calling the incident a Type A mishap, the highest classification of a mission failure.

For NPR News, I'm Brendan Byrne in Orlando.

The international crew is made up of two U.S.

astronauts, one from France and a Russian cosmonaut.