Narrative:

I was doing static runup on ramp. Plane was chocked all 3 wheels. No one was immediately near, plane started to slide, I pulled power off at once but still struck 2 orange parking cones (plastic). There was no damage to plane, but cones were broken. In the future I will find dry spot on runup area to do run up.

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Original NASA ASRS Text

Title: PLT OF AN ATX SMT TWIN SLID INTO PLASTIC PARKING CONES DURING AN ENG RUNUP DUE LOSING ACFT CTL ON ICY RAMP WITH THE WHEELS CHOCKED.

Narrative: I WAS DOING STATIC RUNUP ON RAMP. PLANE WAS CHOCKED ALL 3 WHEELS. NO ONE WAS IMMEDIATELY NEAR, PLANE STARTED TO SLIDE, I PULLED PWR OFF AT ONCE BUT STILL STRUCK 2 ORANGE PARKING CONES (PLASTIC). THERE WAS NO DAMAGE TO PLANE, BUT CONES WERE BROKEN. IN THE FUTURE I WILL FIND DRY SPOT ON RUNUP AREA TO DO RUN UP.

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.