Narrative:

Cleared to land approximately 8 miles from runway. Going through about 1000 ft captain and I began a discussion about what appeared to be unusual lights on runway. At about 500 ft; captain (PF) keyed microphone and confirmed landing clearance. Very shortly after that; the landing lights illuminated the threshold and we saw an aircraft on the runway. We immediately initiated a go around. ATC issued go around instructions almost simultaneously. We passed approximately 400 ft over aircraft.

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Original NASA ASRS Text

Title: A B737 CLRED TO LAND AT FLL OBSERVES TFC ON RWY AND INITIATES GO AROUND. FAA DOCUMENTED A NMAC WITH NO OPERROR.

Narrative: CLRED TO LAND APPROX 8 MILES FROM RWY. GOING THROUGH ABOUT 1000 FT CAPT AND I BEGAN A DISCUSSION ABOUT WHAT APPEARED TO BE UNUSUAL LIGHTS ON RWY. AT ABOUT 500 FT; CAPT (PF) KEYED MIKE AND CONFIRMED LNDG CLRNC. VERY SHORTLY AFTER THAT; THE LNDG LIGHTS ILLUMINATED THE THRESHOLD AND WE SAW AN ACFT ON THE RWY. WE IMMEDIATELY INITIATED A GO AROUND. ATC ISSUED GO AROUND INSTRUCTIONS ALMOST SIMULTANEOUSLY. WE PASSED APPROX 400 FT OVER ACFT.

Data retrieved from NASA's ASRS site as of January 2009 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.