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| NTSB Identification: MKC85LA188. The docket is stored on NTSB microfiche number 28544. |
| Accident occurred Friday, August 16, 1985 at LEE'S SUMMIT, MO |
| Aircraft: CESSNA 172RG, registration: N4772R |
| Event: 20001214X37591 Status: Final Report |
| NTSB Final Narrative (6120.4) |
| 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. |
| Occurrences and Sequence of Events |
| Occurrence: 1, LOSS OF ENGINE POWER(TOTAL) - MECH FAILURE/MALFUNCTION |
| Phase of Operation: MANEUVERING |
| Sequence of Events for Occurrence Number: 1 |
| 1 ( Cause ) CARBURETOR HEAT CONTROL / FAILURE,TOTAL / (0) |
| 2 ( Factor ) WEATHER CONDITION / CARBURETOR ICING CONDITIONS / (0) |
| 3 (Finding) CARBURETOR HEAT / ATTEMPTED / PILOT IN COMMAND |
| 4 (Finding) CARBURETOR HEAT / NOT POSSIBLE / |
| 5 ( Cause ) FUEL SYSTEM, CARBURETOR / ICE / (0) |
| Occurrence: 2, FORCED LANDING |
| Phase of Operation: DESCENT - EMERGENCY |
| Phase of Operation: LANDING |
| Sequence of Events for Occurrence Number: 3 |
| 1 ( Factor ) LIGHT CONDITION / DARK NIGHT / (0) |
| 2 ( Factor ) TERRAIN CONDITIONS / CROP / (0) |
| 3 ( Factor ) TERRAIN CONDITIONS / SOFT / (0) |
| 4 ( Factor ) TERRAIN CONDITIONS / WET / (0) |
| Phase of Operation: LANDING - ROLL |
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