Aircraft Incident/Accident Report

Port Alsworth, Alaska 99653
Saturday, August 28, 2010 18:35 AKD

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NTSB Narrative Summary Released at Completion of Accident
The pilot was on a personal cross-country flight and had landed at an off-airport site. While taxiing to park, the right wheel broke and the plane tipped on its right wing. The right wing, wing spar, and aileron were damaged when the wing struck the ground. He reported no mechanical problems with the airplane prior to the accident. A postaccident examination of the broken wheel showed the center of the wheel casting adjacent to the inner bearing race had fractured around its circumference, and the casting piece and bearing race had separated from the wheel, allowing the axle to pivot. An examination at the National Transportation Safety Board's materials laboratory revealed features indicative of overstress separation of the flange. No indications of fatigue, corrosion or other preexisting conditions were noted.
NTSB Probable Cause Narrative
The overstress fracture and failure of a main landing gear wheel during landing, resulting in the right wing striking the ground.
Event Information
Type of EventAccident 
Event Date8/28/2010 
Event Day of the WeekSaturday 
Time of Event1835 
Event Time Zone-- 
Event CityPort Alsworth 
Event StateALASKA 
Event Country-- 
Zipcode of the event site99653 
Event Date Year2010 
Event Date Month
MidAir Collision IndicatorNo 
On Ground Collision occurred ?No 
Event Location Latitude-- 
Event Location Longitude-- 
Event Location Airport-- 
Event Location Nearest Airport ID-- 
Indicates whether the acc/inc occurred off or on an airportOff Airport/Airstrip 
Distance from airport in statute miles-- 
Degrees magnetic from airport-- 
Airport Elevation-- 
Weather Briefing Completeness-- 
Investigator's weather sourceWeather Observation Facility 
Time of the weather observation1639 Atlantic Daylight Time 
Direction of event from weather observation facility (degrees)90 
Weather Observation Facility IDPALJ 
Elevation of weather observation facility288 
Distance of event from weather observation facility (units?)48 
Time Zone of the weather observationADT 
Lighting ConditionsDay 
Lowest Ceiling Height3000 
Lowest Non-Ceiling Height800 
Sky/Lowest/Cloud ConditionsScattered 
Sky Condition for Lowest CeilingBroken 
Visibility Runway Visual Range (Feet)-- 
Visibility Runway Visual Value (Statute Miles)-- 
Visibility (Statute Miles) 20 
Air Temperature at event time (in degrees celsius)11 
Dew Point at event time (in degress fahrenheit)11 
Wind Direction (degrees magnetic)230 
Variable Wind IndicatorWind direction could be determined 
Wind Speed (knots)
Wind Velocity Indicator -- 
Wind Gust IndicatorNot Gusting 
Wind Gust (knots) -- 
Altimeter Setting at event time (in. Hg) 29.86 
Density Altitude (feet)-- 
Intensity of Precipitation-- 
METAR weather report -- 
Event Highest InjuryNone 
On Ground, Fatal Injuries-- 
On Ground, Minor Injuries-- 
On Ground, Serious Injuries-- 
Injury Total Fatal-- 
Injury Total Minor-- 
Injury Total None
Injury Total Serious-- 
Injury Total All-- 
Investigating AgencyNTSB 
NTSB Docket Number (internal use)28105 
NTSB Notification SourceFAA Anchorage, ROC  
NTSB Notification Date-- 
NTSB Notification Time-- 
Fiche Number and/or location -used to find docket information-- 
Date of most recent change to recordMar 11 2011 7:35PM 
User who most recently changed recordstam 
Basic weather conditionsVisual Meteorological Cond 
FAA District Office-- 
Aircraft Involved
Aircraft #1
Aircraft Registration NumberN9569K 
NTSB NumberANC10LA081 
Missing Aircraft Indicator-- 
Federal Aviation Reg. PartPart 91: General Aviation 
Type of Flight Plan filedNone 
Flight plan Was Activated?-- 
Aircraft FireNone 
Aircraft ExplosionNone 
Aircraft Manufacturer's Full NameSTINSON 
Aircraft Model108-2 
Aircraft Series Identifier-- 
Aircraft Serial Number108-2569 
Certified Max Gross Weight2330 
Aircraft CategoryAirplane 
Aircraft Registration Class-- 
Aircraft is a homebuilt?No 
Flight Crew Seats-- 
Cabin Crew Seats-- 
Passenger Seats-- 
Total number of seats on the aircraft
Number of Engines
Fixed gear or retractable gearFixed 
Aircraft, Type of Last InspectionAnnual 
Date of Last InspectionNov 3 2009 12:00AM 
Airframe hours since last inspection-- 
Airframe Hours3106 
ELT InstalledYes 
ELT ActivatedNo 
ELT Aided Location of Event SiteNo 
ELT TypeC126 
Aircraft Owner NameMOVING UP 2 INC 
Aircraft Owner Street Address-- 
Aircraft Owner CityPORT ALSWORTH 
Aircraft Owner StateAK 
Aircraft Owner CountryUSA  
Aircraft Owner Zipcode99653 
Operator is an individual?No 
Operator NameGlen Alsworth Jr 
Operator Same as Owner?No 
Operator Is Doing Business As-- 
Operator Address Same as Owner?No 
Operator Street Address-- 
Operator CityPort Alsworth 
Operator State-- 
Operator CountryUSA  
Operator Zip code99653 
Operator Code-- 
Owner has at least one certificateNone 
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 BoardNo 
Departure Point Same as EventNo 
Departure Airport CodeAK51 
Departure CityPort Alsworth 
Departure StateAK 
Departure CountryUSA 
Departure Time-- 
Departure Time Zone-- 
Destination Same as Local Fltdest & departure same, accident can occur anywhere 
Destination Airport CodeAK51 
Destination CityPort Alsworth 
Destination StateAK 
Destination CountryUSA 
Specific Phase of Flight-- 
Report sent to ICAO?-- 
Evacuation occurred-- 
Date of most recent change to recordMar 11 2011 7:35PM 
User who most recently changed recordstam 
Since inspection or accidentTime of Accident 
Event Location Runway Number and LocationN/A 
Runway Length-- 
Runway Width-- 
Sight Seeing flightNo 
Air Medical FlightNo 
Medical Flight--