Narrative:

During a right base leg to runway at ZZZ; I remember clearly that I put the landing gear in the down position. The yellow 'up and locked' light extinguished and I diverted my attention to numerous other aircraft on the airport surface and in the airport traffic pattern. I felt the gear doors open causing a deceleration in the aircraft. While on approach to runway; I lowered the flaps to full down and established my final approach. I do not recall if the green 'down and locked' light had illuminated. The first indication that the gear was not extended was when I heard the open main landing gear doors scraping the concrete followed by the aircraft settling on the belly and sliding to a stop. There was no aural gear up warning at any time during the approach. Corrective action: always visually verify that the gear is down.

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Original NASA ASRS Text

Title: C210 LANDS WITH GEAR NOT EXTENDED.

Narrative: DURING A R BASE LEG TO RWY AT ZZZ; I REMEMBER CLRLY THAT I PUT THE LNDG GEAR IN THE DOWN POS. THE YELLOW 'UP AND LOCKED' LIGHT EXTINGUISHED AND I DIVERTED MY ATTN TO NUMEROUS OTHER ACFT ON THE ARPT SURFACE AND IN THE ARPT TFC PATTERN. I FELT THE GEAR DOORS OPEN CAUSING A DECELERATION IN THE ACFT. WHILE ON APCH TO RWY; I LOWERED THE FLAPS TO FULL DOWN AND ESTABLISHED MY FINAL APCH. I DO NOT RECALL IF THE GREEN 'DOWN AND LOCKED' LIGHT HAD ILLUMINATED. THE FIRST INDICATION THAT THE GEAR WAS NOT EXTENDED WAS WHEN I HEARD THE OPEN MAIN LNDG GEAR DOORS SCRAPING THE CONCRETE FOLLOWED BY THE ACFT SETTLING ON THE BELLY AND SLIDING TO A STOP. THERE WAS NO AURAL GEAR UP WARNING AT ANY TIME DURING THE APCH. CORRECTIVE ACTION: ALWAYS VISUALLY VERIFY THAT THE GEAR IS DOWN.

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.