Narrative:

This was a pleasure flight originating from riverside, ca, to hall's crossing, lake powell, ut. The only passenger was my wife, in the beech sierra, BE24. We stopped at kingman, az, for a coffee break, then continued on to grand canyon airport for fuel. The landing at grand canyon was very normal, and wind was down the runway at no more than 15 KTS which is light for this airport. On landing rollout, the nose gear started to shimmy and vibrate violently, then separated from the aircraft, which caused the nose to settle to the runway bending the propeller. I shut everything off, my wife and I evacuate/evacuationed. No injuries to either of us. The airport fire department responded quickly. Initial investigation by an FBO mechanic found the attachment assembly of the entire nose gear unit sheared off at the bolt attachment point. This proves the nose gear was definitely down and looked upon landing as the failure was above the locking mechanism. An investigation is continuing.

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Original NASA ASRS Text

Title: A BEECH SIERRA, BE24, LANDS AT GCN, AZ, AND HAS A FAILURE OF THE NOSE GEAR DURING LNDG ROLLOUT. DAMAGE DONE TO ACFT IS NOSE GEAR SCRAPING FROM BEING SHEARED OFF AND BENT PROP.

Narrative: THIS WAS A PLEASURE FLT ORIGINATING FROM RIVERSIDE, CA, TO HALL'S XING, LAKE POWELL, UT. THE ONLY PAX WAS MY WIFE, IN THE BEECH SIERRA, BE24. WE STOPPED AT KINGMAN, AZ, FOR A COFFEE BREAK, THEN CONTINUED ON TO GRAND CANYON ARPT FOR FUEL. THE LNDG AT GRAND CANYON WAS VERY NORMAL, AND WIND WAS DOWN THE RWY AT NO MORE THAN 15 KTS WHICH IS LIGHT FOR THIS ARPT. ON LNDG ROLLOUT, THE NOSE GEAR STARTED TO SHIMMY AND VIBRATE VIOLENTLY, THEN SEPARATED FROM THE ACFT, WHICH CAUSED THE NOSE TO SETTLE TO THE RWY BENDING THE PROP. I SHUT EVERYTHING OFF, MY WIFE AND I EVACED. NO INJURIES TO EITHER OF US. THE ARPT FIRE DEPT RESPONDED QUICKLY. INITIAL INVESTIGATION BY AN FBO MECH FOUND THE ATTACHMENT ASSEMBLY OF THE ENTIRE NOSE GEAR UNIT SHEARED OFF AT THE BOLT ATTACHMENT POINT. THIS PROVES THE NOSE GEAR WAS DEFINITELY DOWN AND LOOKED UPON LNDG AS THE FAILURE WAS ABOVE THE LOCKING MECHANISM. AN INVESTIGATION IS CONTINUING.

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.