Individually Owned: 150,657
Corporate Owned: 137,281
Johnson Creek Airport
Aircraft Accident/Incident Report
Yellow Pine, Idaho 83677
Sunday, July 2, 2000 12:00 MDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that he set-up for a soft field landing on a grass airstrip. The airplane touched down on the main landing gear, and immediately after the nose wheel touched down, grass and dirt started to come over the windshield and the airplane rapidly decelerated, subsequently nosing over. After the accident, it was noted that the nose wheel had separated from the nose wheel fork. The axle bolt, both buckets, and a locknut were found on the grass airstrip along the aircraft's ground track. Inspection of the parts and a review of the maintenance records disclosed evidence that the nose gear and tire installation were for a Piper PA32. The accident aircraft was a Cessna U206B. Although the two installations are similar, the Piper installation used an axle bolt that is secured with a lock nut (on the aircraft at the time of the accident). The Cessna installation used an axle bolt that is drilled for a castle nut and cotter key installation. An inspection of the nut and bolt threads was conducted at the NTSB Materials Lab. The specialist reported that the threads on both the bolt and nut showed no evidence of excessive loading or stripping damage. Due to the lack of damage to the axle bolt and nut, it appeared that the bolt was not locked down at the last maintenance inspection and backed off.
NTSB Probable Cause Narrative
The locknut was not secured and backed off the bolt. An improper maintenance installation was a factor.
Event Information
| Type of Event | Accident |
| Event Date | 7/2/2000 |
| Event Day of the Week | Sunday |
| Time of Event | 1200 |
| Event Time Zone | Mountain Daylight Time |
| Event City | YELLOW PINE |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83677 |
| Event Date Year | 2000 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | JOHNSON CREEK |
| Event Location Nearest Airport ID | 3U2 |
| 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 | 4933 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1150 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 248 |
| Weather Observation Facility ID | MYL |
| Elevation of weather observation facility | 5020 |
| Distance of event from weather observation facility (units?) | 26 |
| Time Zone of the weather observation | MDT |
| 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) | 18 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | 290 |
| 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 | 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 | 4 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 997 |
| NTSB Notification Source | FAA REGIONAL OPERATIONS CENTER |
| NTSB Notification Date | Jul 2 2000 12:00AM |
| NTSB Notification Time | 1135 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | May 16 2003 3:17PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N3488L |
| NTSB Number | SEA00LA120 |
| 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 | Cessna |
| Aircraft Model | U206B |
| Aircraft Series Identifier | U206B |
| Aircraft Serial Number | U206-0788 |
| Certified Max Gross Weight | 3600 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 8 1999 12:00AM |
| Airframe hours since last inspection | 100 |
| Airframe Hours | 4878 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | NEIL M. SALMI |
| Aircraft Owner Street Address | P.O. BOX 1389 |
| Aircraft Owner City | COLUMBUS |
| Aircraft Owner State | MT |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 59019 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | MYL |
| Departure City | MCCALL |
| Departure State | ID |
| Departure Country | |
| Departure Time | 1140 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 2 2001 4:09AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 17 |
| Runway Length | 3400 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |