LAX02LA128

NTSB accident investigation · Wilson Magnum · Woodland, CA · April 6, 2002

Accident · No injuriesLimited investigationFinal report
Date
April 6, 2002, 13:00 local (21:00 UTC)
Place
Woodland, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N229JWWilson Magnum
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
Case key
54477

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 inadequate compensation for the gusty crosswind condition, and his failure to maintain airplane control.

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.

Hard landingLanding - flare/touchdown
Weather condition - gustsFactor
Weather condition - crosswindFactor
Remedial action - delayedPilot in command
Compensation for wind conditions - inadequatePilot in commandCause
Aircraft control - not maintainedPilot in commandCause
Main gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

During landing, the pilot touched down hard in a southwesterly direction on the grass airstrip and collapsed the main landing gear and a wing. The pilot indicated that he had increased engine power to attempt to maintain control, but he was not successful. The wind was from the north at 5 knots, with gusts to 15 knots, and he may have been "behind the airplane" during the landing flare.

Factual narrative

On April 6, 2002, about 1300 Pacific standard time, a Wilson Avid Magnum, N229JW, made a hard landing in a pasture about 30 miles west of Woodland, California. The experimental, amateur-built airplane was substantially damaged, and the private pilot was not injured. The airplane was operated by the pilot/builder on a personal flight under the provisions of 14 CFR Part 91. Visual meteorological conditions prevailed, and no flight plan had been filed. The flight originated from Willows, California, about 1200.

The pilot reported to the National Transportation Safety Board investigator that he landed in a southwesterly direction on his 1,300-foot-long grass-covered airstrip. The airplane bounced upon touchdown, and he increased engine power. The pilot further reported that he lost directional control of the airplane when a main landing gear collapsed and a wing broke. No mechanical malfunctions were experienced prior to the mishap. The pilot indicated that at the time the prevailing wind was from the north, at 5 knots, with gusts to 15 knots. He stated that he may have been "behind the airplane" during the landing flare.

In the pilot's completed "Aircraft Accident Report," he indicated that after the landing flare occurred a wind gust from the north lifted the airplane's right wing. This caused a hard touchdown on the left landing gear, which subsequently collapsed.

Aircraft

Registration
N229JW
Reported as
Wilson Magnum
Category
Airplane, amateur-built
Serial number
81M
Engine
Lycoming O-320-A3A, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John W. Wilson
Airworthiness certificate
Special, Experimental (Special)
Departed
WLW · Willows, CA
Destination
Woodland, CA
Airport
Private Airstrip

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
62
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,000 total · 250 in this make and model · 1,000 as pilot in command · 30 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
185 °F

Docket · 1

The files NTSB released with the investigation on April 23, 2004, on NTSB’s docket system: statements, records, photos and specialists’ reports. 299 KB in all.