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NTSB Report
November 30, 2005 · Larson Aero COMP-6 · N4334Z
Brainerd, MN
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
November 30, 2005
Injury Outcomes
1 injury (1 serious injury)
Location
Brainerd, MN
Aircraft
Larson Aero COMP-6
Tail Number
N4334Z
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CHI06CA039
The airplane collided with the terrain following a loss of control on takeoff. The pilot, who was also the airplane builder, reported that the takeoff was normal and at an altitude of about 20 feet above the runway, the left wing dropped slightly. He stated he attempted to compensate by using opposite aileron, however, the wing continued to drop until the airplane contacted the ground. The pilot stated the accident occurred during the first flight after he converted the aileron system from push-pull cables to a tube and bell crank system. The pilot reported he inadvertently reversed the left and right aileron control systems when he installed the conversion.
NTSB Probable Cause
The pilot/builder inadvertently reversed the aileron control systems during installation and failed to maintain control of the airplane during takeoff. A factor associated with the accident was the pilot/builder’s failure to perform an adequate aircraft preflight.
Full Narrative
The airplane collided with the terrain following a loss of control on takeoff. The pilot, who was also the airplane builder, reported that the takeoff was normal and at an altitude of about 20 feet above the runway, the left wing dropped slightly. He stated he attempted to compensate by using opposite aileron, however, the wing continued to drop until the airplane contacted the ground. The pilot stated the accident occurred during the first flight after he converted the aileron system from push-pull cables to a tube and bell crank system. The pilot reported he inadvertently reversed the left and right aileron control systems when he installed the conversion.
Flight
Event TypeAccident
Event Time14:30 CST
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftLarson Aero COMP-6
Tail NumberN4334Z
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-470 · Reciprocating · 250
Seats4
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 60 · Third Class · Serious
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingOvercast 10000 ft
Temperature / Dew Point19 C / 10 C
Altimeter30.02 inHg
Observation Time14:00
Weather SourceWFAC