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NTSB Report
August 6, 2005 · Therrien Roger Vortex · N42923
Lawrenceburg, TN
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 6, 2005
Injury Outcomes
1 injury (1 serious injury)
Location
Lawrenceburg, TN
Aircraft
Therrien Roger Vortex
Tail Number
N42923
Operator
Roger N Therrien Jr
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
ATL05CA141
The pilot was practicing taxiing the homebuilt gyrocopter and unintentionally took-off but decided to stay in flight. When the pilot was preparing to land he descended the gyrocopter steeply towards runway 35. The pilot pulled back on the "stick" to flare out, and stated that the gyrocopter did not respond. The aircraft nosed into the ground. Examination of the accident site revealed the gyrocopter laying on its left side. The main rotor mast was separated from its base, the forward and left main landing gear collapsed and the cockpit roof was detached. The pilot did not report any mechanical malfunctions with the gyrocopter prior to flight.
NTSB Probable Cause
The pilot's improper landing flair, which resulted in a hard landing.
Full Narrative
The pilot was practicing taxiing the homebuilt gyrocopter and unintentionally took-off but decided to stay in flight. When the pilot was preparing to land he descended the gyrocopter steeply towards runway 35. The pilot pulled back on the "stick" to flare out, and stated that the gyrocopter did not respond. The aircraft nosed into the ground. Examination of the accident site revealed the gyrocopter laying on its left side. The main rotor mast was separated from its base, the forward and left main landing gear collapsed and the cockpit roof was detached. The pilot did not report any mechanical malfunctions with the gyrocopter prior to flight.
Flight
Event TypeAccident
Event Time12:00 CDT
Nearest AirportLawrenceburg County Airport (0nm)
Runway35
Runway Length5003 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftTherrien Roger Vortex
Tail NumberN42923
Aircraft CategoryGyro
DamageSubstantial
OperatorRoger N Therrien Jr
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 582 · Reciprocating · 67
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 48 · Third Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind40° @ 3 kt
Visibility5 sm
CeilingNone
Altimeter30.10 inHg
Observation Time22:15
Weather SourceWFAC