LAX07CA018

NTSB accident investigation · Codding/Fluno Sportsman GS-2 · Hopland, CA · October 20, 2006

Accident · No injuriesData collectionFinal report
Date
October 20, 2006, 12:30 local (19:30 UTC)
Place
Hopland, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N429ADCodding/Fluno Sportsman GS-2
Weather
Visual (VMC) · Day
Status
Completed · report February 26, 2007
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20061020030379A
Case key
64759

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 excessive braking during landing roll, which resulted in the airplane nosing over. A contributing factor was the erroneous windsock indication, which prompted the pilot to land with a tailwind, and inadvertently increase his landing roll.

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.

On ground/water encounter with weatherLanding - roll
Weather condition - tailwindFactor
Airport facilities,wind direction indicator - false/incorrect indicationFactor
Wind information - incorrectFactor
Wrong runway - selectedPilot in commandFactor
Nose overLanding - roll
Brakes(normal) - excessivePilot in commandCause

Analysis

The experimental amateur-built airplane nosed over after the pilot applied firm braking during the landing roll. The pilot landed the tailwheel equipped airplane on his grass airstrip after assessing the wind direction with the aide of a windsock. During the landing roll the pilot realized that the remaining runway was decreasing and applied firm braking. The airplane nosed over and came to rest inverted. Upon exiting the airplane the pilot noticed the wind was blowing from a direction opposite than the windsock indicated. He examined the windsock and found that it was caught in a guide wire and was indicating opposite the actual wind direction.

Factual narrative

On October 20, 2006 at 1230 Pacific daylight time, an amateur-built Codding/Fluno Sportsman GS-2 airplane, N429AD, nosed over during the landing roll at a private airstrip near Hopland, California. The builder/private pilot, who was the sole occupant, operated the airplane under the provisions of 14 CFR Part 91 as a personal flight. The pilot was not injured during the accident. The airplane was substantially damaged. Visual meteorological conditions prevailed, and a flight plan was not filed for the local flight that originated from the Sonoma County Airport, Santa Rosa, California, at 1210. The flight was destined for the private airstrip near Hopland.

According to the written statement provided by the pilot, he overflew his private airstrip and noticed the windsock favoring the wind from the west. He flew the tail wheel equipped airplane in a right traffic pattern to land to the west, as the 1,400-foot-grass runway was oriented east-west. After landing the pilot realized he was running out of remaining runway and applied firm braking, which resulted in the airplane nosing over.

The pilot secured the fuel and electric systems and exited the airplane. He then noticed the wind was blowing from the east. After examining the airstrip's windsock he noted that the sock tail was caught in a guide wire and was indicating opposite the actual wind direction. The pilot has since repaired his airstrip's windsock.

Aircraft

Registration
N429AD
Reported as
Codding/Fluno Sportsman GS-2
Category
Airplane, amateur-built
Serial number
7052
Airframe hours
76
Engine
Lycoming O-360-A1F6, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 1, 2006 · 13 hours before
Departed
STS · Santa Rosa, CA
Destination
Hopland, CA
Airport
NONE · Private, runway 27, 1,400 × 60 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
51
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
April 1, 2005
Seat
Left
Flight hours
1,346 total · 46 in this make and model · 1,304 as pilot in command · 3 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
90° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.