NTSB Identification: FTW92LA196.
The docket is stored on NTSB microfiche number 47327.
Accident occurred Thursday, July 30, 1992 in GRANBURY, TX
Probable Cause Approval Date: 06/11/1993
Aircraft: CESSNA 150F, registration: N6650F
Injuries: 2 Minor.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
THE STUDENT PILOT AND HIS PASSENGER WERE DEPARTING FROM THE PRIVATE AIRSTRIP WHEN THE PILOT NOTED A 200 RPM DROP ON THE ENGINE TACHOMETER. THE PILOT ESTIMATED HIS ALTITUDE TO BE 120 FEET ABOVE GROUND LEVEL. THE PILOT STATED THAT HOUSES WERE BELOW THE AIRPLANE SO HE ELECTED TO CONTINUE TOWARD THE LAKE. AFTER CLEARING THE RESIDENTIAL AREA, THE AIRPLANE DESCENDED OVER THE LAKE AND THE PILOT DITCHED INTO THE WATER AT 40 MPH. BEFORE THE AIRPLANE SANK, THE PILOT AND PASSENGER EXITED AND WERE PICKED UP BY A NEAR BY BOATER. THE FAA INSPECTOR EXAMINED THE AIRPLANE AND NOTED THE CARBURETOR HEAT CONTROL IN THE FULL 'ON' POSITION. NO AIRCRAFT MECHANICAL ANOMALIES WERE NOTED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE PILOT'S INADVERTENT USE OF CARBURETOR HEAT DURING TAKEOFF. THE LACK OF SUITABLE TERRAIN FOR A FORCED LANDING WAS A FACTOR.
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