SELLERSBURG, IN, USA
N90270
HUGHES 269A
THE PILOT WAS CHECKING THE RADIOS DURING A LOW ALTITUDE FLIGHT. THE PILOT WANTED SOME CABIN HEAT, REACHED FOR THE CABIN HEATER LEVER, AND MOVED IT TO WHAT HE BELIEVED WAS THE FULL 'ON' POSITION. HE LATER LEARNED HE MOVED THE FUEL MIXTURE CONTROL TO THE FULL 'LEAN' POSITION. THE HELICOPTER'S ENGINE FAILED AND THE PILOT HAD LITTLE TIME TO AFFECT A STABILIZED AUTOROTATION. AFTER TOUCHDOWN THE HELICOPTER SLID SIDEWAYS ON WET SOD AND ROLLED OVER.
A PILOT INDUCED LOSS OF ENGINE POWER BY INADVERTENT DEACTIVATION OF THE FUEL MIXTURE CONTROL.
Source: NTSB Aviation Accident Database
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