DEN83FU003

NTSB accident investigation · Weedhopper Unknown · Powell, WY · August 28, 1983

Accident · FatalFinal report
Date
August 28, 1983, 07:30 local (13:30 UTC)
Place
Powell, WY
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
UNREGWeedhopper Unknown
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
16026

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

On this page

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 - normal
Wing,wing attachment bolt - separationCause
Wing,bracing strut - disconnectedCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The ultralight vehicle crashed in a corn field while on a local pleasure flt. It impacted the soft ground in a nose down, vertical attitude. The engine buried itself to a depth of 18 inches. Examination of the wreckage airframe revealedthat a bolt with a self locking nut was missing from where the two right wing support struts attach to the right main wheel axel. The forward strut support brace indicated a pronounced bending. The angle brace that connected the support brace to the airframe was also found bent. A search for the missing bolt and nut was unsuccessful.

Aircraft

Registration
UNREG
Reported as
Weedhopper Unknown
Category
Ultralight, amateur-built
Airframe hours
15
Engine
Chotia 1, 25 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 103
Registered owner
Michael K. Herd

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
27
Airplane ratings
Single-engine land
Medical
Unknown
Seat
Center
Toxicology
Performed
Flight hours
15 total · 15 in this make and model · 15 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
61 °F