MORIARITY, NM, USA
N544BM
BEAUCHESNE/WELLS GLASAIR TD
THE PLT RPRTD THAT DRG FLT, THE PROP BEGAN TO WOBBLE & SHOOK THE ACFT VIOLENTLY. HE TURNED THE ACFT AWAY FROM MTNS TO FIND A SUITABLE AREA FOR AN EMERGENCY LANDING. HOWEVER, AT AN ALT OF ABOUT 400' AGL, THE PROP SEPD & THE PLT WAS FORCED TO LAND ON DESERT TERRAIN. DRG THE LANDING, THE ACFT WAS SUBSTANTIALLY DAMAGED. AN INVESTIGATION REVEALED THE PROP HAD BEEN MOUNTED ON THE ENG WITH AN EXTENSION, BUT THE EXTENSION DID NOT HAVE A MEANS TO PRECISELY CENTER THE PROP. SUBSEQUENTLY, THE PROP BEGAN A SEVERE VIBRATION, THE PROP MOUNTING BOLTS FAILED & THE PROP SEPD FROM THE ACFT.
IMPROPER INSTALLATION OF THE PROPELLER WHICH RESULTED IN SEVERE VIBRATION AND FAILURE OF THE PROPELLER MOUNTING BOLTS, & THE SEPARATION OF THE PROPELLER FROM THE AIRCRAFT. ROUGH/UNEVEN DESERT TERRAIN CONTRIBUTED TO THE ACCIDENT.
Source: NTSB Aviation Accident Database
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