MKC87LA084

NTSB accident investigation · Thorp T-18 · Bowling Green, MO · April 20, 1987

Accident · No injuriesLimited investigationFinal report
Date
April 20, 1987, 09:15 local (14:15 UTC)
Place
Bowling Green, MO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N218HWThorp T-18
Weather
Visual (VMC) · Day
Status
Completed · report May 2, 1988
Report
Approved by Office Director
FAA report
19870420031849A
Case key
34367

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.

Loss of control - in flightLanding - flare/touchdown
Weather condition - gusts
Compensation for wind conditions - not maintainedPilot in command
Directional control - not maintainedPilot in commandCause
Remedial action - delayedPilot in command
On ground/water encounter with terrain/waterLanding - roll
Terrain condition - ditch
Ground loop/swerve - uncontrolledPilot in commandCause

Analysis

The PIC rptdly encountered a gust of wind during the landing flare. The PIC lost control as one main landing gear impacted the ground abruptly and his head hit the side of the canopy. The acft veered off the side of the rwy into tall grass and soft terrain. The PIC was unable to steer the acft back onto the rwy and execute a go-around. The acft subsequently impacted into a ditch which was obscured by the tall grass and flipped inverted.

Aircraft

Registration
N218HW
Reported as
Thorp T-18
Category
Airplane, amateur-built
Serial number
532
Engine
Lycoming O-320, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Norman W. Boldt
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · August 1, 1986 · 40 hours before
Departed
Siloam Springs, AR
Airport
H19 · Bowling Green, runway 13, 2,600 × 50 ft, asphalt

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
35
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
134 total · 71 in this make and model · 60 as pilot in command · 24 in the last 90 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 10 knots
Visibility
7 statute miles
Temperature
72 °F, dew point 57 °F
Altimeter
30.00 inHg
Observed at
UIN, 35 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.