Individually Owned: 150,657
Corporate Owned: 137,281
Joslin Field-Magic Valley Reg. Airport
Aircraft Accident/Incident Report
Twin Falls, Idaho 83301
Monday, March 15, 2010 11:20 MDT
NTSB Narrative Summary Released at Completion of Accident
In near calm wind conditions, the pilot reported that after he made a normal traffic pattern approach and touchdown his airplane veered "sharply left," and he was unable to redirect the airplane's course back toward the runway using right rudder and right brake. The airplane departed the left side of the runway while rolling between 25 and 30 miles per hour. Thereafter, it rolled onto an open soft dirt field adjacent to the runway's edge, the nose gear dug into the dirt, and the airplane came to rest upside down. The pilot had recent flying experience in the airplane and was current. A Federal Aviation Administration inspector examined the accident site and airplane. He reported observing evidence on the runway of nose gear shimmy. Also, he reported observing evidence that the nose gear created a furrow in the soft dirt consistent with the nose gear wheel being canted sideways before breaking in an aft direction. No mechanical malfunction or anomalies were found with the airplane's flight controls, landing gear system, or brakes. Physical evidence related to the pilot’s loss of directional/steering control was not found. The pilot indicated that he does not know why the airplane's nose gear canted/twisted sideways and precluded him from maintaining directional control during rollout.
NTSB Probable Cause Narrative
The pilot's loss of directional control during landing roll for an undetermined reason.
Event Information
| Type of Event | Accident |
| Event Date | 3/15/2010 |
| Event Day of the Week | Monday |
| Time of Event | 1120 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Twin Falls |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83301 |
| Event Date Year | 2010 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 422855N |
| Event Location Longitude | 1142916W |
| Event Location Airport | Joslin Field-Magic Valley Reg. |
| Event Location Nearest Airport ID | TWF |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 4154 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1053 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | TWF |
| Elevation of weather observation facility | 4154 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MDT |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 6 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| Wind Direction (degrees magnetic) | 20 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.45 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KTWF 151653Z 02004KT 10SM CLR 06/M04 A3045 |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 1 |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 27528 |
| NTSB Notification Source | NW FAA ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Oct 1 2010 3:37PM |
| User who most recently changed record | coos |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N951DM |
| NTSB Number | WPR10LA160 |
| 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 | MIGAS |
| Aircraft Model | RV9-A |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 90558 |
| Certified Max Gross Weight | 1750 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | Conditional |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | 20 |
| Airframe Hours | 142 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | Unknown |
| Aircraft Owner Name | MIGAS RICHARD M |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | ENUMCLAW |
| Aircraft Owner State | WA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 98022-6812 |
| Operator is an individual? | Yes |
| Operator Name | MIGAS RICHARD M |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | ENUMCLAW |
| Operator State | WA |
| Operator Country | USA |
| Operator Zip code | 98022-6812 |
| Operator Code | -- |
| Owner has at least one certificate | None |
| 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 Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | S98 |
| Departure City | Kennewick |
| Departure State | WA |
| Departure Country | USA |
| Departure Time | 930 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | TWF |
| Destination City | Twin Falls |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 1 2010 3:37PM |
| User who most recently changed record | coos |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 25 |
| Runway Length | 8703 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |