Accident Cessna 170 N4133V, Sunday 8 April 2018

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Date:	Sunday 8 April 2018
Time:	19:30
Type:	Cessna 170
Owner/operator:	Private
Registration:	N4133V
MSN:	18465
Year of manufacture:	1948
Total airframe hrs:	3483 hours
Engine model:	Continental C145 SERIES
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Destroyed
Category:	Accident
Location:	Big Lake, AK - United States of America
Phase:	Approach
Nature:	Training
Departure airport:	Big Lake, AK (BGQ)
Destination airport:	Big Lake, AK
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The pilot reported that, during the approach to land on a gravel airstrip, he increased engine power to “extend the approach,” the airplane pitched up in a nose-high attitude, aerodynamically stalled, and yawed to the right. Subsequently, the airplane impacted a snowbank to the right side of the airstrip. A postcrash fire destroyed the airplane.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Probable Cause: The pilot’s exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.

Accident investigation: