NTSB Identification: MKC84LA047.
The docket is stored on NTSB microfiche number 22111.
Accident occurred Thursday, December 29, 1983 in HOSPERS, IA
Aircraft: CESSNA 172A, registration: N7229T
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 PLT SAID HE WAS ON A POWER LINE PATROL FLT & WAS FLYING APRX 60 TO 80 FT AGL. REPORTEDLY, HE APPLIED CARBURETOR HEAT FOR ABOUT 1 MIN. WHEN THE CARBURETOR HEAT WAS TURNED OFF, THE ENG QUIT. THE PLT REAPPLIED THE HEAT & THE ENG RESTARTED FOR A MOMENT & THEN QUIT AGAIN. DURING A FORCED LANDING ON SNOW COVERED TERRAIN, THE ACFT NOSED OVER. AN EXAM OF THE ACFT & ENG REVEALED NO EVIDENCE OF A PREIMPACT FAILURE OR DEFICIENCY. THE TEMP & DEW POINT WERE -4 & -17 DEG, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CURVES, CARBURETOR ICING WOULD NOT BE PROBABLE.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:REASON FOR OCCURRENCE UNDETERMINED
TERRAIN CONDITION..SNOW COVERED
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