ERA09CA422

NTSB accident investigation · Dart GW · Warrenton, VA · July 25, 2009

Accident · Minor injuriesData collectionFinal report
Date
July 25, 2009, 08:35 local (12:35 UTC)
Place
Warrenton, VA
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N20930Dart GW
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 9, 2009
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
74374

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's failure to maintain directional control during the landing roll. Contributing to the accident was the wet turf landing surface.

Findings · 3

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.

Action: incorrect action performancePersonnel issues › Action/decision · PilotDart GW: 1 caseAll aircraft: 1,386 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedDart GW: 1 caseAll aircraft: 3,958 casesProbable cause
Runway/land/takeoff/taxi surface: wet surfaceEnvironmental issues › Physical environment · Contributed to outcomeDart GW: 1 caseAll aircraft: 141 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

The certificated private pilot performed a "normal" landing at 60 miles per hour and the tail-wheel-equipped airplane continued for approximately 600 to 700 feet on the 2,215 foot-long by 70-foot-wide turf runway, before it drifted to the right. The pilot was unable to correct the drift with left rudder and left brake before the airplane departed the runway, and struck trees at approximately "30 miles per hour." When asked how the accident could have been prevented, the pilot stated he should have kept the control stick fully back during the landing roll, and that the wet grass condition significantly decreased surface friction available for braking and steering effectiveness. Calm winds were reported 5 nautical miles southeast of the airport. Examination of the airplane by a Federal Aviation Administration inspector did not reveal any evidence of preimpact mechanical malfunctions.

Factual narrative

The certificated private pilot performed a "normal" landing at 60 miles per hour and the tail-wheel-equipped airplane continued for approximately 600 to 700 feet on the 2,215 foot-long by 70-foot-wide turf runway, before it drifted to the right. The pilot was unable to correct the drift with left rudder and left brake before the airplane departed the runway, and struck trees at approximately "30 miles per hour." When asked how the accident could have been prevented, the pilot stated he should have kept the control stick fully back during the landing roll, and that the wet grass condition significantly decreased surface friction available for braking and steering effectiveness. Calm winds were reported 5 nautical miles southeast of the airport. Examination of the airplane by a Federal Aviation Administration inspector did not reveal any evidence of preimpact mechanical malfunctions.

Aircraft

Registration
N20930
Reported as
Dart GW
Category
Airplane
Serial number
GK-38
Airframe hours
986
Engine
Lycoming O-290-DTC #22, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Justin Currier
Registered owner
Ronald C. Smith
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 5, 2008
Departed
HWY · Midland, VA
Destination
7VG0 · Warrenton, VA
Airport
7VG0 · Warrenton Air Park, runway 04, 2,215 × 70 ft, grass/turf

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
40
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
April 10, 2009
Seat
Left
Flight hours
131 total · 50 in this make and model · 88 as pilot in command · 61 in the last 90 days · 25 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Temperature
70 °F, dew point 64 °F
Altimeter
29.96 inHg
Observed at
HWY, 5 nm away

Docket · 4

The files NTSB released with the investigation on September 15, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 MB in all.