A pilot was killed after her small plane crashed in Indiana just three days into her daring solo flight around the world.

Anh-Thu Nguyen, 44, of Washington, set out on Monday to become the first Vietnamese-American woman to complete the feat in a single-engine airplane, following six years of meticulous preparation, the Indianapolis Star reported.

But on Wednesday, her 2005 Lancair IV-P suddenly spiraled out of the sky, plummeting to the ground and crashing behind a gas station in Greenwood.

Nguyen shared a haunting video to Facebook just minutes before the crash claimed her life, expressing her optimism about her mission.

'I'm super excited today. I just completed the first leg of my solo flight around the world,' the chief instructor said in the video.