Individually Owned: 150,657
Corporate Owned: 137,281
Bolinder Field Airport
Aircraft Accident/Incident Report
Tooele, Utah 84074
Wednesday, November 20, 2002 16:00 MST
NTSB Narrative Summary Released at Completion of Accident
According to the instructor, the purpose of the flight was to prepare the student for dual cross-country flights and to familiarize him with the Piper PA-28R-201. Prior to this flight, the student pilot had been flying a Diamond Alarus, a training type airplane. They flew to a nearby airport, where they made three touch and go landings. On the fourth touch and go landing, the student pilot "assertively retracted the gear without warning" instead of the flaps. The right main and nose landing gear retracted and the airplane veered off the right side of the runway. The right wing struck a taxiway light, spinning the airplane around, and the left side of the fuselage struck a taxiway sign. The right wing was wrinkled and there was a gash from the leading edge back to the spar. The prop blade was bent. The left side of the fuselage was also wrinkled and buckled. According to FAA inspectors who examined the airplane, the squat switch on the landing gear had been rigged incorrectly. The squat switch actuated at .625 inches, exceeding the airplane's service manual requirement by .375 inches, or 150 percent. There were no entries in the maintenance records entries involving the squat switch. The torque seal on the squat switch mounting screws showed no signs of being disturbed.
NTSB Probable Cause Narrative
the inadvertent retraction of the landing gear during landing roll by the dual student. Contributing factors included the dual student's lack of familiarity with the aircraft, inadequate supervision by the flight instructor, and improper rigging of the landing gear squat switch.
Event Information
| Type of Event | Accident |
| Event Date | 11/20/2002 |
| Event Day of the Week | Wednesday |
| Time of Event | 1600 |
| Event Time Zone | Mountain Standard Time |
| Event City | Tooele |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84074 |
| Event Date Year | 2002 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 403644N |
| Event Location Longitude | 1122102W |
| Event Location Airport | Bolinder Field |
| Event Location Nearest Airport ID | TVY |
| 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 | 4316 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1556 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 40 |
| Weather Observation Facility ID | SLC |
| Elevation of weather observation facility | 4227 |
| Distance of event from weather observation facility (units?) | 20 |
| Time Zone of the weather observation | MST |
| 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) | 9 |
| Dew Point at event time (in degress fahrenheit) | -1 |
| Wind Direction (degrees magnetic) | 340 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.52 |
| Density Altitude (feet) | 3767 |
| 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) | 13327 |
| NTSB Notification Source | FAA COMM CTR |
| NTSB Notification Date | Nov 20 2002 12:00AM |
| NTSB Notification Time | 1720 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | May 13 2003 12:26PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake City, Utah |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N850FS |
| NTSB Number | DEN03LA017 |
| 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 | Piper |
| Aircraft Model | PA-28R-201 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 2844080 |
| Certified Max Gross Weight | 2750 |
| 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 | Retractable |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Oct 25 2002 12:00AM |
| Airframe hours since last inspection | 38 |
| Airframe Hours | 194 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | Salt Lake Community College |
| Aircraft Owner Street Address | 4600 S. Redwood Rd. |
| Aircraft Owner City | Salt Lake City |
| Aircraft Owner State | UT |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 84123 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | SLC |
| Departure City | Salt Lake City |
| Departure State | UT |
| Departure Country | USA |
| Departure Time | 1445 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | SLC |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Apr 1 2003 2:45PM |
| User who most recently changed record | MCBM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 35 |
| Runway Length | 6100 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |