NTSB Identification: MKC85LA188.
The docket is stored on NTSB microfiche number 28544.
Accident occurred Friday, August 16, 1985 in LEE'S SUMMIT, MO
Aircraft: CESSNA 172RG, registration: N4772R
Injuries: 1 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 PLT REPORTED THAT THE ENG START & RUN-UP WERE NORMAL BEFORE HE TOOK OFF ON A NIGHT CURRENCY & PROFICIENCY FLT. AFTER 2 NORMAL TAKEOFFS & FULL STOPS, HE MADE A 3RD TAKEOFF.HE CLIMBED TO 1000 FT AGL ON A X-WIND LEG, REDUCED POWER TO 20' MANIFOLD PRESSURE & MOVED CARB HEAT CONTROL 'ON' & INITIATED A TURN. WHILE TURNING, THE ENG SUDDENLY STOPPED. UNABLE TO REACH THE RWY, THE PLT LANDED IN A SOFT, MUSHY MILO FIELD AT NIGHT. DURING THE LANDING, THE ACFT NOSED OVER. AN EXAM REVEALED THE CARB HEAT SHROUD HAD BROKEN OFF ITS MOUNTING ATTACHMENT. ALSO, THE FLEXIBLE HOSE FROM THE CARB HEAT AIR SHROUD TO THE CARB WAS ALMOST COLLAPSED. ADDITIONALLY, THE TEMP & DEW POINT WERE 78 & 73 DEGS, RESPECTFULLY. ACCORDING TO ICING PROBABILITY CHARTS, CONDITIONS WERE CONDUCIVE TO CARB ICE.

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

CARBURETOR HEAT CONTROL..FAILURE,TOTAL

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

FUEL SYSTEM,CARBURETOR..ICE


Contributing Factors

LIGHT CONDITION..DARK NIGHT


Contributing Factors

TERRAIN CONDITION..CROP


Contributing Factors

WEATHER CONDITION..CARBURETOR ICING CONDITIONS



Contributing Factors

TERRAIN CONDITION..SOFT


Contributing Factors

TERRAIN CONDITION..WET

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