NTSB Identification: CHI88LA146.
The docket is stored on NTSB microfiche number 36896.
Accident occurred Thursday, June 30, 1988 in LONSDALE, MN
Probable Cause Approval Date: 07/10/1989
Aircraft: CESSNA 150M, registration: N63178
Injuries: 2 Minor.

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 PILOT WAS EXECUTING A POWER-OFF GLIDE AND WHEN AN ATTEMPT WAS MADE TO RECOVER BY ADDING POWER, THE ENGINE DID NOT RESPOND. THE PILOT WAS THEN FORCED TO MAKE AN EMERGENCY LANDING IN A FIELD. DURING THE FORCED LANDING THE PILOT WAS UNABLE TO MAINTAIN CONTROL AND SUBSEQUENTLY CAUGHT A WINGTIP ON THE ROUGH TERRAIN AND CARTWHEELED THE AIRCRAFT. AS A RESULT THE AIRCRAFT WAS DESTROYED. INVESTIGATION OF THE ENGINE BY AN FAA INSPECTOR REVEALED THAT THE CARBURETOR WAS CONTAMINATED WITH A FIBERGLASS SUBSTANCE WHICH BLOCKED THE THROAT OF THE CARBURETOR. THERE WERE NO OTHER SIGNS OF THE SUBSTANCE AND AS A RESULT THE PLACE OF ORIGIN OF THE SUBSTANCE COULD NOT BE DETERMINED.

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

FUEL SYSTEM,CARBURETOR..BLOCKED(TOTAL)

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

FLUID,FUEL..STARVATION


Contributing Factors

TERRAIN CONDITION..MOUNTAINOUS/HILLY


Contributing Factors

TERRAIN CONDITION..ROUGH/UNEVEN

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