Narrative:

We were cleared to land while we were on about a 5 mile right base to runway 23. We continued our approach and while on a very short final (about 100 ft AGL) and about to cross the threshold when the tower controller came on the radio and yelled '[call sign] go around; go around!' it was at this time that the first officer caught a glimpse of the other aircraft that had taxied onto the runway out of the corner of the windshield. We executed our go around procedure and continued into the pattern; were cleared to land; and landed without further incident.neither the first officer nor I saw the other aircraft taxi onto the runway. He was coming from the right side so he was blocked the entire time from my view by the dash. The plane was blocked from the first officer's view by the dash until the last second when we were right on top of him and he could see the aircraft out to the right.

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Original NASA ASRS Text

Title: As they crossed the threshold a C208 flight crew was directed to make a go around when a PA28 taxied onto the runway.

Narrative: We were cleared to land while we were on about a 5 mile right base to Runway 23. We continued our approach and while on a very short final (about 100 FT AGL) and about to cross the threshold when the Tower Controller came on the radio and yelled '[call sign] Go Around; Go Around!' It was at this time that the First Officer caught a glimpse of the other aircraft that had taxied onto the runway out of the corner of the windshield. We executed our go around procedure and continued into the pattern; were cleared to land; and landed without further incident.Neither the First Officer nor I saw the other aircraft taxi onto the runway. He was coming from the right side so he was blocked the entire time from my view by the dash. The plane was blocked from the First Officer's view by the dash until the last second when we were right on top of him and he could see the aircraft out to the right.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.