Individually Owned: 150,657
Corporate Owned: 137,281
Cottage Grove State Airport
Aircraft Accident/Incident Report
Cottage Grove, Oregon 97424
Saturday, February 15, 1992 13:00 PST
NTSB Narrative Summary Released at Completion of Accident
DURING THE INITIAL TAKEOFF ROLL THE TERN SAILPLANE PITCHED NOSE UP AND THE PILOT WAS UNABLE TO MAINTAIN CONTROL. THE PILOT RELEASED FROM THE TOW AIRCRAFT BUT THE SAILPLANE HAD BEGUN TO SPIN AND IMPACTED THE GROUND SHORTLY THEREAFTER. THE SAILPLANE WAS FOUND TO BE EQUIPPED WITH ONLY A CG TOW ATTACH POINT WHICH IS USED FOR VEHICLE TOW LAUNCHES AND IS LOCATED AFT OF THE NOSE UNDER THE COCKPIT. THE SAILPLANE DID NOT POSSESS AN AERO TOW ATTACH POINT MOUNTED ON THE NOSE AND USED FOR AIRCRAFT LAUNCHES. THE PILOT REPORTED 557 HOURS OF FLIGHT EXPERIENCE BUT ONLY 15 HOURS WERE IN GLIDERS WITH NO TIME LOGGED IN THE MAKE/MODEL OF THE ACCIDENT AIRCRAFT.
NTSB Probable Cause Narrative
THE PILOT'S INADEQUATE PREFLIGHT OF THE SAILPLANE. FACTORS CONTRIBUTING TO THE ACCIDENT WERE IMPROPER TOW EQUIPMENT AND LACK OF TOTAL GLIDER EXPERIENCE.
Event Information
| Type of Event | Accident |
| Event Date | 2/15/1992 |
| Event Day of the Week | Saturday |
| Time of Event | 1300 |
| Event Time Zone | Pacific Standard Time |
| Event City | COTTAGE GROVE |
| Event State | OREGON |
| Event Country | -- |
| Zipcode of the event site | 97424 |
| Event Date Year | 1992 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | COTTAGE GROVE STATE |
| 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 | 640 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1250 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 318 |
| Weather Observation Facility ID | EUG |
| Elevation of weather observation facility | 365 |
| Distance of event from weather observation facility (units?) | 21 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 30000 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 40 |
| Air Temperature at event time (in degrees celsius) | 12 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 40 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 162 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 46106 |
| Date of most recent change to record | Dec 11 2000 2:45PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8000Z |
| NTSB Number | SEA92LA047 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | KNA,KEN,DAC,WEL |
| Aircraft Model | TERN SAILPLANE |
| Aircraft Series Identifier | TERN SAILP |
| Aircraft Serial Number | KKDWWTM1070 |
| Certified Max Gross Weight | 950 |
| Aircraft Category | Glider |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 1 |
| Number of Engines | 0 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jan 2 2000 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | J.MARSHALL,G.OSWALD,H.HOGLAN |
| Aircraft Owner Street Address | 78833 AIRPORT ROAD |
| Aircraft Owner City | COTTAGE GROVE |
| Aircraft Owner State | OR |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 97424 |
| Operator is an individual? | -- |
| Operator Name | J.MARSHALL,G.OSWALD,H.HOGLAN |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 78833 AIRPORT ROAD |
| Operator City | COTTAGE GROVE |
| Operator State | OR |
| Operator Country | |
| Operator Zip code | 97424 |
| Operator Code | |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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 | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1300 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 33 |
| Runway Length | 3200 |
| Runway Width | 60 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |