LAX01LA206

NTSB accident investigation · Piper PA-20 · Winnemucca, NV · June 9, 2001

Accident · No injuriesLimited investigationFinal report
Date
June 8, 2001, 22:15 local (Jun 9, 2001, 05:15 UTC)
Place
Winnemucca, NV
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7783KPiper PA-20
Weather
Visual (VMC) · Night
Status
Completed · report February 25, 2003
Report
Approved by Office Director
Parties
FAA - Flt Standards Dist Office
FAA report
20010608011129A
Case key
52457

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 obtain weather information or an in-flight advisory that would have described current wind information at the destination airport and his subsequent failure to maintain directional control during landing.

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.

Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Weather condition - high wind
Ground loop/swerve - encounteredPilot in commandCause
Weather condition - crosswind
Wind information - not obtainedPilot in commandCause
On ground/water encounter with terrain/waterLanding - roll
Wing - bent
Remedial action - not successful
Landing gear,main gear - collapsed

Analysis

After touchdown and under a crosswind condition, the airplane became partially airborne again over the runway (runway 32). The right wing struck the ground. The right main landing gear had also collapsed when the airplane "hit hard." The pilot lost directional control and the airplane swerved off the runway. Winds at the airport were reported by the ASOS (Automated Surface Observation Station) as 270 degrees at 13 knots. Peak wind speeds of 26 knots were also recorded. The Winnemucca weather station service records were obtained and did not indicate any operational downtime. The pilot reported a wind gust and the direction as calm on the Accident Report form 6120.1/2. He did not report that he had received an in-flight advisory or had observed the windsock before landing. A weather briefing was received by the pilot 7 hours 45 minutes prior to the accident.

Factual narrative

On June 8, 2001, about 2215 Pacific daylight time, a Piper PA-20, N7783K, sustained substantial damage during a ground loop while landing at the Winnemucca, Nevada, airport. The private pilot/owner was operating the airplane under the provisions of 14 CFR Part 91. The pilot sustained no injuries. The cross-country night flight departed Mandril, Idaho, at an unknown time. Visual meteorological conditions prevailed, and a flight plan had not been filed.

According to the pilot's statements to the Safety Board investigator, he made a normal landing and was rolling out when a gust of wind lifted the left wing. The airplane became partially airborne and landed hard, collapsing the right main landing gear. Structural damage also resulted when the right wing was bent after it struck the ground. In his written report, the pilot stated that he had received a weather briefing 7 hours 45 minutes prior to the accident. Additionally, he reported a wind gust and the direction as calm at the Winnemucca Airport. He did not report having observed the windsock or having monitored the Winnemucca Automated Surface Observation System located on the field prior to the approach.

The Winnemucca METAR reported the wind information; 270 degrees at 13 knots with peak winds at 280 degrees and 26 knots, respectively. The National Weather Service station record for Winnemucca was requested for June 08, 2001, and the information obtained did not indicate any maintenance or operation downtime. The record displayed only one entry in the service logs for the following day. The entry read that the staff had "dialed into the site and saved 12 hours of 5-minute data after receiving notification of an aircraft incident."

Aircraft

Registration
N7783K
Reported as
Piper PA-20
Category
Airplane
Serial number
20-610
Airframe hours
2,160
Engine
Lycoming O-290-D, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Gregory S. McAdams
Registered owner
Wesly Harju
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 20, 2000 · 34 hours before
Departed
S33 · Madras, OR
Destination
WMC · Winnemucca, NV
Airport
WMC · Winnemucca Muni, runway 32, 7,000 × 100 ft, asphalt

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
50
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
March 28, 2000
Seat
Left
Flight hours
356 as pilot in command

Weather

Conditions
Visual (VMC) · Night
Wind
270° at 13 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 28 °F
Altimeter
29.95 inHg
Observed at
KWMC

FAA reports on this event · 1

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

Other investigations on N7783K · 2

Matched to the same aircraft by N-number and date.