Individually Owned: 150,657
Corporate Owned: 137,281
Farrington Airpark Airport
Aircraft Accident/Incident Report
Paducah, Kentucky 42001
Tuesady, August 25, 1998 16:00 CDT
NTSB Narrative Summary Released at Completion of Accident
The gyroplane was on short final, about 15 feet above the ground, when it went into an uncommanded right turn and right roll. The heading changed 180 degrees, and the gyroplane impacted sod near the runway threshold. The gyroplane had a rotor brake mechanism which was activated by pushing the cyclic control full forward. A through-bolt which had attached the two lateral control arms to the yoke assembly, was discovered missing, and the right lateral control arm had separated from the yoke assembly. The kit manufacturer was considering implementing a clamp-type rotor brake system, much like a bicycle's, to prevent rotor brake forces from passing through the flight control system.
NTSB Probable Cause Narrative
Failure of a through-bolt that attached the lateral control arms to the yoke assembly, due to unanticipated rotor brake forces through the flight control system.
Event Information
| Type of Event | Accident |
| Event Date | 8/25/1998 |
| Event Day of the Week | Tuesday |
| Time of Event | 1600 |
| Event Time Zone | Central Daylight Time |
| Event City | PADUCAH |
| Event State | KENTUCKY |
| Event Country | -- |
| Zipcode of the event site | 42001 |
| Event Date Year | 1998 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | FARRINGTON AIRPARK |
| Event Location Nearest Airport ID | FIO |
| 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 | 338 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1356 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 310 |
| Weather Observation Facility ID | PAH |
| Elevation of weather observation facility | 410 |
| Distance of event from weather observation facility (units?) | 20 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 34 |
| Dew Point at event time (in degress fahrenheit) | 23 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 340 |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1200 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 26 1998 12:00AM |
| NTSB Notification Time | 800 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 11:43AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N72DE |
| NTSB Number | NYC98LA172 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Ekstrom-Farrington |
| Aircraft Model | TWINSTAR |
| Aircraft Series Identifier | TWINSTAR |
| Aircraft Serial Number | 001 |
| Certified Max Gross Weight | 1200 |
| Aircraft Category | Gyrocraft |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | Aug 13 1998 12:00AM |
| Airframe hours since last inspection | 20 |
| Airframe Hours | 937 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | FARRINGTON AIRCRAFT CORP. |
| Aircraft Owner Street Address | 4460 SHEMWELL LANE |
| Aircraft Owner City | PADUCAH |
| Aircraft Owner State | KY |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 42003 |
| Operator is an individual? | -- |
| 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? | 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) | Instructional |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | FIO |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1500 |
| Departure Time Zone | CDT |
| 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 | Approach |
| 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 | 22 |
| Runway Length | 2915 |
| Runway Width | 60 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |