Aircraft Accident/Incident Report

Sparrevohn, Alaska 99657
Monday, August 18, 2003 9:15 AKD

NTSB Narrative Summary Released at Completion of Accident

According to the pilot, the takeoff area was 2,100 feet long, oriented east/west, and consisted of "firm tundra with some rougher areas near the mid point." Additionally, the takeoff area had a dogleg requiring "a right hand directional correction of about 15 feet" near the midpoint. The pilot reported that he planned to takeoff heading east, and the wind was from the south at 5 to 7 mph. He further reported that the airplane accelerated normally, and as it neared the midpoint of the takeoff area, it "wanted to drift to the left." The pilot added right rudder to make the dogleg turn and to counteract the drift. At this point, the pilot heard a loud "pop" from the fuselage and aborted the takeoff. The left main landing gear separated from the fuselage, and the airplane slid approximately 100 feet and came to a stop. The pilot stated that the accident could have been prevented by the "use of more right aileron and less rudder to correct for right-hand crosswind."

NTSB Probable Cause Narrative

The pilot's inadequate compensation for a crosswind, which resulted in collapse of the left main landing gear during the takeoff roll. A factor was the crosswind.

Event Information

Type of Event Accident
Event Date 8/18/2003
Event Day of the Week Monday
Time of Event 915
Event Time Zone --
Event City Sparrevohn
Event State ALASKA
Event Country --
Zipcode of the event site 99657
Event Date Year 2003
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 605300N
Event Location Longitude 1550000W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport --
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling --
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) --
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
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 Docket Number (internal use) 14119
NTSB Notification Source FAA
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 25 2003 11:36AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8016A
NTSB Number ANC03CA097
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 --
Aircraft Manufacturer's Full Name Cessna
Aircraft Model 170B
Aircraft Series Identifier --
Aircraft Serial Number 20868
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Ernest R. Walker
Aircraft Owner Street Address --
Aircraft Owner City Wasilla
Aircraft Owner State AK
Aircraft Owner Country USA
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 --
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Sparrevohn
Departure State AK
Departure Country USA
Departure Time --
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code AK51
Destination City Port Alsworth
Destination State AK
Destination Country USA
Specific Phase of Flight Takeoff - roll/run
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 24 2003 12:31PM
User who most recently changed record NTSB\HAMG
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --