MKC86FCQ01

NTSB accident investigation · Kuhn Sonerai II · Sedgwick, KS · February 2, 1986

Accident · Serious injuriesFinal report
Date
February 2, 1986, 12:15 local (18:15 UTC)
Place
Sedgwick, KS
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N23BKKuhn Sonerai II
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860202031249A
Case key
34090

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

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionCruise
Lubricating system,oil line - looseCause
Fluid,oil - leak
Precautionary landing - performedPilot in commandFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
On ground/water collision with objectLanding - roll
Terrain condition - cropFactor
Object - fenceFactor
Nose gear collapsedLanding - roll
Landing gear,nose gear - overload
Nose overLanding - roll

Analysis

The plt noticed eng oil on the cockpit canopy during the local flt and decided to make a precautionary landing. The landing was made in a wheat field where the acft contacted a fence. The nose gear then collapsed and the acft nosed over. Post accident inspection of the eng disclosed an oil leak at the oil radiator hose connection on top of the eng. Post accident inspection revealed the eng still contained the required amount of oil. No other discrepancies were noted.

Aircraft

Registration
N23BK
Reported as
Kuhn Sonerai II
Category
Airplane, amateur-built
Serial number
1067
Airframe hours
125
Engine
Volkswagen 1834CC, 50 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Robert M. Kuhn
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 11, 1985 · 2 hours before
Departed
EWK · Newton, KS

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
54
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
332 total · 156 in this make and model · 286 as pilot in command · 36 in the last 90 days · 15 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
79° at 3 knots
Visibility
5 statute miles
Temperature
54 °F, dew point 45 °F
Observed at
ICT, 17 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.