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NTSB Identification: NYC90LA055. The docket is stored on NTSB microfiche number 41139.

Accident occurred Saturday, January 20, 1990 at SCHUYLER, NY

Aircraft: CESSNA 150M, registration: N66787

Injuries: 1 Serious, 1 Minor



Event: 20001212X22490 Status: Final Report Approved On Thursday, September 10, 1992



NTSB Final Narrative (6120.4)



THE STUDENT AND INSTRUCTOR (CFI) WERE ON A DUAL TRAINING FLIGHT PRACTICING SLOW FLIGHT. WHEN THEY RETURNED TO NORMAL CRUISE, THE ENGINE STARTED TO SPUTTER. ADDITION OF CARBURETOR HEAT DID NOT CLEAR UP THE PROBLEM. THE AIRCRAFT WAS SET FOR A FORCED LANDING. AT APPROXIMATELY 50 FEET A.G.L., THE ENGINE WENT TO FULL POWER AND THE CFI DECIDED TO ABORT THE LANDING AND BEGAN RAISING THE FLAPS. THE ENGINE QUITE AGAIN AND THE PILOT LOWERED THE NOSE; HOWEVER, THE AIRCRAFT STRUCK THE GROUND AND NOSED OVER. THE TEMPERATURE WAS 25 DEG AND THE DEW POINT 17, WHICH FALLS WITHIN THE 'ICING GLIDE AND CRUISE POWER RANGE OF A CARB ICING PROBABILITY CHART. THE A/C AND ENGINE WERE EXAMINED BY FAA A/W INSPECTORS. NO DESCREPANCIES WERE NOTED.



NTSB Probable Cause Narrative



THE PILOT'S IMPROPER USE OF CARBURETOR HEAT, WHICH RESULTED IN A LOSS OF ENGINE POWER DUE TO CARBURETOR ICE.



Occurrences and Sequence of Events

Occurrence: 1, LOSS OF ENGINE POWER(TOTAL) - NONMECHANICAL

Phase of Operation: CRUISE - NORMAL



Sequence of Events for Occurrence Number: 1

1 ( Factor ) WEATHER CONDITION / CARBURETOR ICING CONDITIONS / (0)

2 ( Cause ) CARBURETOR HEAT / IMPROPER USE OF / PILOT IN COMMAND

3 ( Cause ) FUEL SYSTEM, CARBURETOR / ICE / (0)



Occurrence: 2, FORCED LANDING

Phase of Operation: DESCENT - EMERGENCY



Occurrence: 3, NOSE OVER

Phase of Operation: LANDING


 

 

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