NTSB Identification: MKC69F0237
14 CFR Part 91 General Aviation
Aircraft: BENSEN B8-M, registration: N1802----------------------------------------------------------------------------------------------------------------------------
FILE DATE LOCATION AIRCRAFT DATA INJURIES FLIGHT PILOT DATA
F S M/N PURPOSE
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3-3755 68/10/21 ANOKA,MINN BENSEN B8-M CR- 0 0 1 INSTRUCTIONAL STUDENT, AGE 48, 21 TOTAL
TIME - 1010 N1802 PX- 0 0 0 TRAINING HOURS, 3 IN TYPE, NOT
DAMAGE-SUBSTANTIAL OT- 0 0 0 INSTRUMENT RATED.
NAME OF AIRPORT - ANOKA COUNTY
TYPE OF ACCIDENT PHASE OF OPERATION
ENGINE FAILURE OR MALFUNCTION LANDING: TRAFFIC PATTERN-CIRCLING
HARD LANDING LANDING: LEVEL OFF/TOUCHDOWN
PROBABLE CAUSE(S)
POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE TEMPERATURE
POWERPLANT - IGNITION SYSTEM: SPARK PLUG
PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL)
PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
REMARKS- NO 4 CYL PISTON SEIZED DUE TO PRE-IGNITION CAUSED BY SPARK PLUGS WITH IMPROPER HEAT RANGE FOR ENG.
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