Individually Owned: 150,657
Corporate Owned: 137,281
Sheffield Strip Airport
Aircraft Accident/Incident Report
Chickaloon, Alaska 99674
Sunday, October 17, 2004 11:30 AKD
NTSB Narrative Summary Released at Completion of Accident
The private certificated pilot was landing a tundra tire and tailwheel-equipped airplane on a remote, snow-covered airstrip. The airstrip was oriented north/south, and was about 1,200 feet long and 50 feet wide. The pilot indicated that the surface of the airstrip was covered by about six inches of snow. The pilot said that during the landing roll, the left main landing gear tire dropped into a rut that was filled with snow. The airplane then ground looped to the left, and departed off the left side of the airstrip, into an area of brush. The airplane's right main landing gear collapsed, and the airplane received damage to the right wingtip, the left wingtip, and the propeller.
NTSB Probable Cause Narrative
The pilot's failure to maintain directional control of the airplane, which resulted in a collision with terrrain during the landing roll. Factors contributing to the accident were a rough/rutted and snow-covered airstrip surface, and an inadvertent ground loop.
Event Information
| Type of Event | Accident |
| Event Date | 10/17/2004 |
| Event Day of the Week | Sunday |
| Time of Event | 1130 |
| Event Time Zone | -- |
| Event City | Chickaloon |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99674 |
| Event Date Year | 2004 |
| Event Date Month | 10 |
| MidAir Collision Indicator | -- |
| On Ground Collision occurred ? | -- |
| Event Location Latitude | 622244N |
| Event Location Longitude | 1472828W |
| Event Location Airport | Sheffield Strip |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Pilot |
| 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 | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 20 |
| Air Temperature at event time (in degrees celsius) | 0 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| 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 |
| NTSB Docket Number (internal use) | 18171 |
| NTSB Notification Source | FAA Regional Operations Center |
| NTSB Notification Date | Oct 18 2004 12:00AM |
| NTSB Notification Time | 1345 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 13 2005 12:54PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FAA-AL-ANC FSDO 03 |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5057Y |
| NTSB Number | ANC05LA009 |
| 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 | Piper |
| Aircraft Model | PA-18 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18-7890 |
| Certified Max Gross Weight | 1750 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Richard A. Kinmon Sr. |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Wasilla |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99654 |
| 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 | No |
| Departure Point Same as Event | No |
| Departure Airport Code | BGQ |
| Departure City | Big Lake |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1000 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | -- |
| Destination City | Chickaloon |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | Landing - roll |
| Report sent to ICAO? | No |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 21 2005 6:42PM |
| User who most recently changed record | LABJ |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 18 |
| Runway Length | 1200 |
| Runway Width | 50 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |