WPR23LA024

NTSB accident investigation · Cessna 170A · Evanston, WY · October 18, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
October 18, 2022, 11:05 local (17:05 UTC)
Place
Evanston, WY · KEVW
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N291JRCessna 170A
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
FAA
Case key
106187

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The NTSB’s determination of the probable cause, and any contributing factors.

The pilot’s failure to maintain directional control during takeoff, resulting in a runway excursion and ground loop

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

The purpose of the flight was to ferry the tailwheel-equipped airplane for its new owner. The pilot initially told investigators that during the takeoff roll from a 2,300 ft asphalt runway, the skies were clear, and the wind was calm. He stated that he rotated at the 500 ft mark at an airspeed of 65 knots, and the airplane lifted off and climbed to about 50 ft agl. Shortly after, the airplane descended back onto the runway. He added that he did not hear an audible stall horn warning and that after the airplane touched down, the airplane veered off the runway. The airplane ground looped, resulting in substantial damage to the right-wing lift strut, right-wing aileron and the fuselage. The pilot’s initial statement was that the left brake failed (seized) as he saw left tire skid marks on the runway. However, he later told a Federal Aviation Administration inspector that his original statement was incorrect, and the airplane never left the ground and there must have been a brake seizure or dragging of the right brake that he overcompensated for with left rudder, resulting in the runway departure. The pilot did not respond to attempts by the NTSB investigator-in-charge to clarify the differences in his statements. Postaccident examination of the left main landing gear brake and both main gear wheel bearings revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N291JR
Reported as
Cessna 170A
Category
Airplane
Serial number
19837
Built
1951
Airframe hours
3,339
Engine
Continental O-300-A, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
William R. Bensyl
Registered owner
William R. Bensyl
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · June 25, 2022
Destination
D60 · Tioga, ND
Airport
EVW · Evanston-Uinta County Burns Fld, runway 05, 7,300 × 100 ft, asphalt
Equipment
Unknown

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
56
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Seat
Front

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Temperature
32 °F, dew point 32 °F
Altimeter
30.44 inHg
Observed at
KEVW
METAR
METAR KEVW 181553Z AUTO A3044 RMK AO2 SLPNO PWINO $=