NTSB Identification: DEN89LA030.
The docket is stored on NTSB microfiche number 38355.
Accident occurred Sunday, November 13, 1988 in RIVERTON, WY
Probable Cause Approval Date: 11/24/1989
Aircraft: CESSNA 172, registration: N8045B
Injuries: 2 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 INSTRUCTOR REPORTED CLOSING THE THROTTLE TO SIMULATE AN ENGINE FAILURE, DURING A TRAINING FLIGHT. THE STUDENT ADDED CARBURETOR HEAT FIRST, INSTEAD OF ESTABLISHING A PROPER GLIDE. THE INSTRUCTOR REMOVED CARBURETOR HEAT AND ADVISED THE STUDENT OF THE DESIRED SEQUENCE. THE INSTRUCTOR ADDED CARB HEAT, OPENED THE THROTTLE SLIGHTLY, AND CLEARED THE ENGINE DURING DESCENT. THE STUDENT SELECTED A FIELD FOR THE SIMULATED FORCED LANDING. THE INSTRUCTOR ADDED POWER TO RECOVER AT 300 FT AGL. THE ENGINE ACCELERATED TO PARTIAL POWER THEN 'CUT OUT.' THE INSTRUCTOR TRIED TWICE MORE TO RESTORE FULL POWER TO NO AVAIL. A FORCED LANDING WAS MADE IN A BEET FIELD, 10 MILES SOUTHWEST OF THE DESTINATION. AT TOUCHDOWN, THE NOSE WHEEL HIT A DITCH AND WAS SHEARED OFF. THE ACFT TRAVELED 200 FEET, NOSED OVER AND CAME TO REST INVERTED. A POST ACCIDENT ENGINE RUN BY AN FAA INSPECTOR FAILED TO REVEAL EVIDENCE TO EXPLAIN THE REPORTED LOSS OF POWER. THE TEMP WAS 41, AND THE DEW POINT WAS 27.

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

FUEL SYSTEM,CARBURETOR..ICE

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

SUPERVISION..IMPROPER..PILOT IN COMMAND(CFI)

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

CARBURETOR HEAT..IMPROPER USE OF..PILOT IN COMMAND(CFI)


Contributing Factors

TERRAIN CONDITION..DITCH


Contributing Factors

WEATHER CONDITION..CARBURETOR ICING CONDITIONS


Contributing Factors

REMEDIAL ACTION..DELAYED..PILOT IN COMMAND(CFI)

Index for Nov1988 | Index of months