Incident report
Bell 47D1 crash near Big Lake, Minnesota, United States
unknown2017-07-06
Summary
The failure of the metal core assembly within a wooden main rotor blade due to undetected corrosion and fatigue, which caused the wooden blade to separate from the rotor mast.
Incident details
Date
2017-07-06
Location
Big Lake, Minnesota, United States
Aircraft
Operator
Pilot
Operator type
civil
Fatalities
0
Injuries
0
Probable cause
Mechanical failure
Weather
VMC
Source
NTSB CAROL ↗45.3133, -93.7175
Quick stats
Severityunknown
Fatalities0
Injuries0
SourceNTSB CAROL
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