On April 26, 1992, a Boeing A75N1 (registration N59528) operated by Cochran Aviation was involved in an aviation accident near Washington, MO. Investigators recorded the probable cause as: THE PILOT IN COMMAND'S IMPROPER USE OF THE CARBURETOR HEAT CONTROL. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.
During a training flight for takeoffs and landings, the engine backfired and lost power shortly after the fourth takeoff at 800 ft AGL. Carburetor heat was applied post-power loss. Forced landing in rough field resulted in nose over during ground roll. Inspection found no mechanical anomalies; weather conditions conducive to carburetor icing.
Incident Details
A flight instructor was providing takeoff and landing instruction to a private pilot. Shortly after the fourth takeoff, at an estimated altitude of 800 feet above ground level (AGL), the engine backfired and lost power. Carburetor heat was applied after the power loss occurred.
Forced Landing
The pilot executed a forced landing to a rough field. During the ground roll, the airplane nosed over.
Aftermath
An inspection and run-up of the engine failed to disclose any mechanical anomalies.
Meteorological Conditions
Prevailing meteorological conditions were conducive to the formation of serious carburetor icing.