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NTSB Identification: FTW90LA050. The docket is stored on NTSB microfiche number 41016.

Accident occurred Saturday, January 06, 1990 at GLENCOE, OK

Aircraft: CESSNA 152, registration: N5414P

Injuries: 1 Uninjured



Event: 20001212X22419 Status: Final Report Approved On Friday, September 04, 1992



NTSB Final Narrative (6120.4)



DURING A SOLO SESSION, A STUDENT PILOT ATTEMPTED TO DO A PRACTICE FORCED LANDING. WEATHER CONDITIONS WERE VMC; HOWEVER, THE TEMPERATURE WAS 45 DEGREES FAHRENHEIT AND THE DEW POINT WAS 28 DEGREES FAHRENHEIT. THE PILOT ATTEMPTED RECOVERY BY ADVANCING THE THROTTLE AND APPLYING CARBURETOR HEAT SIMULTANEOUSLY. BECAUSE OF THE LATE APPLICATION OF CARBURETOR HEAT, ICING FORMED AND THE RECOVERY FROM THE PRACTICE FORCED LANDING COULD NOT BE ACCOMPLISHED. A FORCED LANDING WAS ATTEMPTED TO A ROAD; HOWEVER, VEHICULAR TRAFFIC FORCED THE PILOT TO CHANGE LANDING SITES. THE AIRPLANE CONTACTED TREES AND DESCENDED OUT OF CONTROL TO GROUND IMPACT. CONDITIONS WERE CONSISTENT WITH SERIOUS ICING POTENTIAL AT A GLIDE POWER SETTING.



NTSB Probable Cause Narrative



THE POWER LOSS DUE TO CARBURETOR ICE, WHICH RESULTED FROM THE PILOT'S FAILURE TO ENGAGE CARBURETOR HEAT IN A TIMELY

MANNER. A FACTOR IN THIS ACCIDENT WAS THE PILOT'S LACK OF TOTAL EXPERIENCE.



Occurrences and Sequence of Events

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

Phase of Operation: MANEUVERING



Sequence of Events for Occurrence Number: 1

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

2 ( Cause ) CARBURETOR HEAT / DELAYED / PILOT IN COMMAND

3 ( Factor ) LACK OF TOTAL EXPERIENCE / (0) / PILOT IN COMMAND



Occurrence: 2, FORCED LANDING

Phase of Operation: DESCENT - EMERGENCY



Occurrence: 3, IN FLIGHT COLLISION WITH OBJECT

Phase of Operation: DESCENT - EMERGENCY



Sequence of Events for Occurrence Number: 3

1 (Finding) OBJECT / TREE(S) / (0)



Occurrence: 4, IN FLIGHT COLLISION WITH TERRAIN/WATER

Phase of Operation: DESCENT - UNCONTROLLED


 

 

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