ATL85FA068

NTSB accident investigation · Gyrocopter B-8M · Madisonville, TN · December 27, 1984

Accident · FatalField investigationFinal report
Date
December 27, 1984, 12:30 local (17:30 UTC)
Place
Madisonville, TN
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
UNREGGyrocopter B-8M
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
6587

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
Flt control syst,rudder control - failure,total
Flt control syst,rudder control - overloadCause
Cyclic - improper use ofPilot in commandCause
Inadequate trainingPilot in command
Propeller/rotor contact to personCruise - normal
Flt control syst,rudder control - failure,total
Rotorcraft flight controls - improper use ofPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ground

Analysis

Student pilot attempting flight in gyrocopter loss control cusing main rotor system to contact the rudder system. Pilot was not qualified to conduct this flight. A/c was not assigned an identification number.

Aircraft

Registration
UNREG
Reported as
Gyrocopter B-8M
Category
Gyroplane, amateur-built
Engine
Mcculloch 4318B, 100 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Kenneth Yearwood
Airworthiness certificate
Special, Experimental (Special)
Departed
Madisonville, TN

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Center
Toxicology
Performed
Flight hours
50 total · 10 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
6 statute miles
Lowest ceiling
4,500 ft overcast
Temperature
55 °F, dew point 43 °F
Altimeter
30.00 inHg
Observed at
TYS, 30 nm away