NTSB Identification: MKC89LA128.
The docket is stored on NTSB microfiche number 38971.
Accident occurred Tuesday, June 06, 1989 in CREVE COEUR, MO
Probable Cause Approval Date: 04/19/1990
Aircraft: WACO UPF-7, registration: N29309
Injuries: 2 Uninjured.

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 PILOT REPORTED THAT SHORTLY AFTER TAKEOFF, AFTER ATTAINING AN ALTITUDE OF ABOUT 100 FT, THE ENGINE BEGAN LOSING POWER. HE INITIATED A SHALLOW RIGHT TURN TO AVOID TREES AND TO STAY OVER THE AIRPORT. HOWEVER, THE ENGINE LOST ALL POWER AND AN EMERGENCY LANDING WAS MADE IN AN ADJACENT CORN FIELD WHERE THE AIRCRAFT WAS SUBSTANTIALLY DAMAGED. NO PREIMPACT MECHANICAL MALFUNCTION OR FAILURE WAS FOUND DURING THE INVESTIGATION. THE TEMPERATURE & DEW POINT WERE 81 AND 50 DEGREES, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CHARTS, CONDITIONS WERE CONDUCIVE TO CARBURETOR ICING.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

IMPROPER USE OF THE CARBURETOR HEAT BY THE PILOT AND CARBURETOR ICE. CONTRIBUTING FACTORS WERE: CARBURETOR ICING CONDITIONS, HIGH OBSTRUCTIONS AND TERRAIN CONDITIONS (CORN CROP).

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