Pinedale Airport
Aircraft Accident/Incident Report

Pinedale, Wyoming 82941
Monday, August 8, 2011 12:00 MDT

NTSB Narrative Summary Released at Completion of Accident

The pilot was demonstrating landing the tailwheel-equipped airplane on a mowed grass field, which sloped from left to right. The main wheels touched the ground without incident but, as the tail dropped the airplane veered sharply to the left. The pilot applied right brake and full right rudder in an attempt to control the airplane, yet it continued to swerve until it was 90 degrees relative to the direction of travel. The right main landing gear subsequently separated and the right wing and stabilizer contacted the ground. The airplane sustained substantial damaged to the fuselage, stabilizer, and right aileron. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during the landing roll.

Event Information

Type of Event Accident
Event Date 8/8/2011
Event Day of the Week Monday
Time of Event 1200
Event Time Zone Mountain Daylight Time
Event City Pinedale
Event State WYOMING
Event Country --
Zipcode of the event site 82941
Event Date Year 2011
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 424730n
Event Location Longitude 1094853w
Event Location Airport Pinedale
Event Location Nearest Airport ID PNA
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 10
Degrees magnetic from airport --
Airport Elevation 7096
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1215 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID KPNA
Elevation of weather observation facility 7096
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.23
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KPNA 081815Z AUTO 03004KT 10SM SCT110 22/02
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29101
NTSB Notification Source FAA AMN Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 17 2011 3:50PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N117CE
NTSB Number WPR11LA389
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Glasair Aviation LLC
Aircraft Model Sportsman
Aircraft Series Identifier GS-2
Aircraft Serial Number 7326
Certified Max Gross Weight 2350
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection Jul 1 2011 12:00AM
Airframe hours since last inspection 39
Airframe Hours 169
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type C126
Aircraft Owner Name Glasair Aviation LLC
Aircraft Owner Street Address 18530 59TH DRIVE NE
Aircraft Owner City ARLINGTON
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98223
Operator is an individual? No
Operator Name Glasair Aviation LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 18530 59TH DRIVE NE
Operator City ARLINGTON
Operator State WA
Operator Country USA
Operator Zip code 98223
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code PNA
Departure City Pinedale
Departure State WY
Departure Country USA
Departure Time 1130
Departure Time Zone MDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code PNA
Destination City Pinedale
Destination State WY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 17 2011 3:47PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --