GUNNISON, CO, USA
N67943
CESSNA 421C
THE PLT BEGAN TAKING OFF ON RWY 06 WITH A WIND FROM 190 DEG AT 8 KTS. HE STATED THAT MAX POWER & RPM WERE OBTAINED. HE NOTED THAT HE OBTAINED 39 INCHES OF MANIFOLD PRESSURE & 2235 RPM AT 100 KTS IAS. REPORTEDLY, THE ACFT ROTATED PROPERLY, BUT BEGAN TO VIBRATE & SHUDDER & WOULD NOT LIFT OFF. THE PLT THEN LOWERED THE NOSE & ACCELERATED TO 110 KTS IAS. HOWEVER, AGAIN, THE ACFT WOULD ONLY VIBRATE & SHUDDER & WOULD NOT LIFT OFF. THE PLT THEN BEGAN ABORTING THE TAKEOFF. THE ACFT WENT OFF THE END OF THE RWY AT 70 TO 80 KTS & BECAME AIRBORNE FOR APRX 75 FT AS IT WENT OVER A DROP OFF IN THE TERRAIN. SUBSEQUENTLY, THE ACFT LANDED IN SOFT SOIL & HIGH GRASS WHERE THE GEAR COLLAPSED. AN INVESTIGATION REVEALED THAT THE TEMP WAS 30 DEG & SNOW WAS FALLING. THE PLT BELIEVED THE ACCIDENT RESULTED FROM COLD TEMPS ALONG WITH WATER BLOWN ONTO THE TAIL SURFACES OF THE ACFT. HE DID NOT DESCRIBE THE SURFACE CONDITION ON THE WINGS. STALL SPEED FOR THIS ACFT WAS 86 KTS AT THE MAX GROSS WT & WAS WITH WT & BALANCE LIMITS.
Source: NTSB Aviation Accident Database
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