Individually Owned: 150,657
Corporate Owned: 137,281
Spanish Fork Airport
Aircraft Accident/Incident Report
Spanish Fork, Utah 84660
Sunday, March 9, 2008 16:20 MDT
NTSB Narrative Summary Released at Completion of Accident
During the initial climb after takeoff, the pilot heard a "loud bang" originating from the rear of the airplane, and he decided to circle around the airport and land. As the nose of the airplane settled during the landing roll, the nose wheel strut folded aft into the fuselage, resulting in structural damage to the airframe. Examination of the airplane revealed that the nose wheel fork assembly and tire had separated from the nose wheel strut during takeoff. Examination of the nose wheel fork assembly attachment stud/bolt revealed fracture features consistent with fatigue and overload. Evidence of oxidation and/or corrosion was also present on the fracture surface.
NTSB Probable Cause Narrative
The fatigue failure of the nose wheel fork assembly attachment stud/bolt during takeoff initial climb, and the collapse of the nose gear during landing.
Event Information
| Type of Event | Accident |
| Event Date | 3/9/2008 |
| Event Day of the Week | Sunday |
| Time of Event | 1620 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Spanish Fork |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84660 |
| Event Date Year | 2008 |
| Event Date Month | 3 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 400829N |
| Event Location Longitude | 1113940W |
| Event Location Airport | Spanish Fork Airport |
| Event Location Nearest Airport ID | U77 |
| 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 | 4529 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1549 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 329 |
| Weather Observation Facility ID | KPVU |
| Elevation of weather observation facility | 4497 |
| Distance of event from weather observation facility (units?) | 5 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | 9000 |
| Sky/Lowest/Cloud Conditions | Few |
| 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) | 8 |
| Dew Point at event time (in degress fahrenheit) | -4 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.26 |
| 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) | 24053 |
| NTSB Notification Source | FAA Operatoins |
| NTSB Notification Date | Mar 10 2008 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Aug 28 2008 3:01PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake City, Utah |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N765DC |
| NTSB Number | SEA08LA090 |
| 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 | Diamond Aircraft Industries |
| Aircraft Model | DA 20-C1 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | C0165 |
| Certified Max Gross Weight | 1764 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | 100 Hour |
| Date of Last Inspection | Jan 1 2008 12:00AM |
| Airframe hours since last inspection | 75 |
| Airframe Hours | 2391 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Airgyro Aviation LLC |
| Aircraft Owner Street Address | 350 West 2050 North |
| Aircraft Owner City | Spanish Fork |
| Aircraft Owner State | UT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 84660 |
| 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 | Yes |
| Departure Airport Code | U77 |
| Departure City | Spanish Fork |
| Departure State | UT |
| Departure Country | USA |
| Departure Time | 1615 |
| Departure Time Zone | MST |
| 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 | Landing - roll |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jul 30 2008 6:23PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 30 |
| Runway Length | 5700 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |