Narrative:

We were cleared to taxi to runway 19 hold short of runway 25 from the FBO. These 2 runway ends are close together and I thought I was holding short of runway 25 when actually I had taxied partially onto it. I saw no red sign for runway 25 and the ground was covered with about 1 inch of snow and ice so I never saw the yellow hold short line. It's possible that the plowing from 7 inches of snowfall the day before may have covered or blocked the sign but I did not see it. An aircraft was asked to go around because of my position with my nose over the runway end. I was wrong regardless of the markings for not getting progressive taxi instructions when I wasn't sure. I had looked at the airport diagram and thought I was positioned properly, but to my chagrin and embarrassment, I was not. ATC was very polite and handled a potentially dangerous situation very well. I apologized to the tower and the affected aircraft for my mistake.

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Original NASA ASRS Text

Title: PLT OF SMA CPR JET ACFT INADVERTENTLY FAILED TO HOLD COMPLETELY SHORT OF ACTIVE RWY DURING TAXI FOR TKOF CAUSING ANOTHER ACFT TO GAR.

Narrative: WE WERE CLRED TO TAXI TO RWY 19 HOLD SHORT OF RWY 25 FROM THE FBO. THESE 2 RWY ENDS ARE CLOSE TOGETHER AND I THOUGHT I WAS HOLDING SHORT OF RWY 25 WHEN ACTUALLY I HAD TAXIED PARTIALLY ONTO IT. I SAW NO RED SIGN FOR RWY 25 AND THE GND WAS COVERED WITH ABOUT 1 INCH OF SNOW AND ICE SO I NEVER SAW THE YELLOW HOLD SHORT LINE. IT'S POSSIBLE THAT THE PLOWING FROM 7 INCHES OF SNOWFALL THE DAY BEFORE MAY HAVE COVERED OR BLOCKED THE SIGN BUT I DID NOT SEE IT. AN ACFT WAS ASKED TO GAR BECAUSE OF MY POS WITH MY NOSE OVER THE RWY END. I WAS WRONG REGARDLESS OF THE MARKINGS FOR NOT GETTING PROGRESSIVE TAXI INSTRUCTIONS WHEN I WASN'T SURE. I HAD LOOKED AT THE ARPT DIAGRAM AND THOUGHT I WAS POSITIONED PROPERLY, BUT TO MY CHAGRIN AND EMBARRASSMENT, I WAS NOT. ATC WAS VERY POLITE AND HANDLED A POTENTIALLY DANGEROUS SIT VERY WELL. I APOLOGIZED TO THE TWR AND THE AFFECTED ACFT FOR MY MISTAKE.

Data retrieved from NASA's ASRS site as of July 2007 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.