NTSB Identification: CHI90LA035.
The docket is stored on NTSB microfiche number 39740.
Accident occurred Thursday, November 30, 1989 in BARRON, WI
Probable Cause Approval Date: 09/05/1990
Aircraft: PIPER PA-22, registration: N8749D
Injuries: 1 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 PLT RPRTD THAT DRG ARRIVAL IN THE VICINITY OF THE DESTN ARPT, HE 'CIRCLED (THE) AREA SEVERAL TIMES TO REDUCE SPEED AND ALTITUDE.' WHILE MANEUVERING, THE ENG LOST POWER & THE PLT MADE AN EMERGENCY LANDING ON THE ARPT; HOWEVER, HE WAS UNABLE TO STOP ON THE SLICK/SNOW COVERED RWY. SUBSEQUENTLY, THE ACFT IMPACTED SOME TREES & BRUSH. A POST-ACDNT ENG RUN-UP REVEALED THE ENG WAS CAPABLE OF SATISFACTORY OPN THRU-OUT ITS NORMAL RANGE. THE TEMP & DEW POINT WERE 37 & 26 DEG, RESPECTIVELY. ACCORDING TO CARB ICING CHARTS, CONDITIONS WERE CONDUCIVE TO CARB ICE.

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

IMPROPER USE OF THE CARBURETOR HEAT BY THE PILOT AND SUBSEQUENT CARBURETOR ICE. CONTRIBUTING FACTORS WERE: CARBURETOR ICING CONDITIONS, SLICK (WET/SNOW COVERED) RUNWAY, AND TREES/BRUSH NEAR THE DEPARTURE END OF THE RUNWAY.

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