RUIDOSO, NM, USA
N9183H
CESSNA 172M
N9183H HAD JUST TAKEN OFF FROM AN 8100 X 100 FT ASPHALT RWY WHERE THE ELEV IS 6811 FT MSL. THERE WAS A RIGHT QUARTERING HEADWIND AT 10 KTS AND THE TEMP WAS 81 DEG F. THE DENSITY ALTITUDE WAS CALCULATED TO BE 9400 FT. THE PLT SAID HE LEANED THE MIXTURE AT 2000 RPM DURING THE RUNUP AND AFTER TAKEOFF THE ENGINE BEGAN TO LOSE RPM, AIRSPEED, AND ALTITUDE. THE PLT SAID HE FIRST ENRICHED THE MIXTURE AND THEN LEANED IT OUT AGAIN. HE THEN APPLIED CARB HEAT AS THE RPM HAD DECREASED TO 1900. WHEN THE RPM REACHED 1800, THE PLT DECIDED AN OFF AIRPORT FORCED LANDING WAS INEVITABLE. THE AIRPLANE CRASHED INTO TREES 1/4 MILE SOUTH OF THE SOUTH END OF THE RWY.
THE PILOT'S IMPROPER USE OF THE MIXTURE CONTROL AND CARBURETOR HEAT DURING A TAKEOFF IN HIGH DENSITY ALTITUDE CONDITIONS. CONTRIBUTING TO THE ACCIDENT WAS THE HIGH DENSITY ALTITUDE.
Source: NTSB Aviation Accident Database
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