Narrative:

I struck a cone with my propeller while taxiing out of the ramp. The cone was placed 15 ft in front of my aircraft by ramp personnel to verify that it had been checked in. The propeller struck the cone 3 times at 1100 RPM. On the third strike, it flung the cone into the parked aircraft, 25 ft to the left of mine. It struck the cowling of the other aircraft, but no one was hurt. I test flew my aircraft with no passenger and complied with all airworthiness directives concerning engine and propeller with propeller strikes. I made a thorough preflight of the aircraft before the incident. The most important contributing factor was that on the preflight, I did not check the area in front of the propeller for debris. When taxiing from where the aircraft was parked, I could not see the cone from the cockpit. As an instructor, I will emphasize to my students how important it is to not only preflight the aircraft, but also its surroundings.

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Original NASA ASRS Text

Title: PROP STRIKE ON AN OBSTRUCTION CONE BY A C172 WHEN DEPARTING THE RAMP.

Narrative: I STRUCK A CONE WITH MY PROP WHILE TAXIING OUT OF THE RAMP. THE CONE WAS PLACED 15 FT IN FRONT OF MY ACFT BY RAMP PERSONNEL TO VERIFY THAT IT HAD BEEN CHKED IN. THE PROP STRUCK THE CONE 3 TIMES AT 1100 RPM. ON THE THIRD STRIKE, IT FLUNG THE CONE INTO THE PARKED ACFT, 25 FT TO THE L OF MINE. IT STRUCK THE COWLING OF THE OTHER ACFT, BUT NO ONE WAS HURT. I TEST FLEW MY ACFT WITH NO PAX AND COMPLIED WITH ALL AIRWORTHINESS DIRECTIVES CONCERNING ENG AND PROP WITH PROP STRIKES. I MADE A THOROUGH PREFLT OF THE ACFT BEFORE THE INCIDENT. THE MOST IMPORTANT CONTRIBUTING FACTOR WAS THAT ON THE PREFLT, I DID NOT CHK THE AREA IN FRONT OF THE PROP FOR DEBRIS. WHEN TAXIING FROM WHERE THE ACFT WAS PARKED, I COULD NOT SEE THE CONE FROM THE COCKPIT. AS AN INSTRUCTOR, I WILL EMPHASIZE TO MY STUDENTS HOW IMPORTANT IT IS TO NOT ONLY PREFLT THE ACFT, BUT ALSO ITS SURROUNDINGS.

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.