DEN08CA146

NTSB accident investigation · Helie RV-6 · Denver, CO · August 28, 2008

Accident · No injuriesData collectionFinal report
Date
August 28, 2008, 11:00 local (17:00 UTC)
Place
Denver, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N190RVHelie RV-6
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report January 22, 2009
Report
Approved by Office Director
Case key
68812

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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Probable cause

The pilot failed to maintain directional control during landing. Contributing to the accident was the crosswind.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Response/compensationHelie Claude RV-6: 1 caseAll aircraft: 1,008 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedHelie Claude RV-6: 1 caseAll aircraft: 3,958 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

According to the pilot, during the landing rollout on runway 08, he lost directional control of the aircraft after encountering a left cross wind. Winds were reported as 000 at 10 knots. The pilot applied corrective control inputs, however the action was ineffective in stabilizing the airplane, which departed the left side of the runway. Examination of the airplane revealed the right wing spar and right aileron were bent.

Factual narrative

According to the pilot, during the landing roll out on runway 08 at Front Range Airport (FTG) in Denver, Colorado, he lost directional control of the aircraft after encountering a left cross wind. Winds were reported as 000 at 10 knots. The pilot applied corrective control inputs, however, the action was ineffective in stabilizing the airplane which departed the left side of the runway. Examination of the airplane revealed the right wing spar and right aileron were bent.

Aircraft

Registration
N190RV
Reported as
Helie RV-6
Category
Airplane, amateur-built
Serial number
30424
Engine
Textron Lycoming o-360-a3a, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Thomas Arnold, doing business as Thomas Arnold
Registered owner
Thomas Arnold
Airworthiness certificate
Special, Experimental (Special)
Departed
FTG · Denver, CO
Destination
FTG · Denver, CO
Airport
FTG · Dummy, runway 08

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
57
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Flight hours
293 total · 79 in this make and model · 59 in the last 90 days · 14 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
10 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 37 °F
Altimeter
30.01 inHg
Observed at
DEN