Individually Owned: 150,657
Corporate Owned: 137,281
Private Airstrip Airport
Aircraft Accident/Incident Report
Swifton, Arkansas 72471
Thursday, June 12, 1997 10:00 CDT
NTSB Narrative Summary Released at Completion of Accident
During takeoff, after the tail wheel came up and before attaining flying speed, the right main landing gear collapsed. Subsequently, the right wheel assembly castored about 90 degrees, causing the aircraft to veer off the side of the runway, and travel about 100 yards through a plowed field. Just prior to coming to rest, the aircraft rolled inverted and a post impact fire consumed the engine compartment and hopper area. Examination of the right main landing gear assembly revealed that the right main landing gear torque link assembly attaching bolt failed. The external surface of the bolt was corroded, and the fracture surface showed evidence of overload failure. There was no evidence of lubrication residues on the bolt and adjacent torque link assembly. According to the aircraft's maintenance manual, the main landing gear torque link assembly attaching bolt should be lubricated every 50 hours. Examination of the maintenance records, did not show any entries made regarding the lubrication of the aforementioned items.
NTSB Probable Cause Narrative
Main landing gear collapse resulting from a failure of the torque link assembly attaching bolt. A factor was the lack of required maintenance (lubrication of the bolt) which resulted in the bolt becoming dry and corroded.
Event Information
| Type of Event | Accident |
| Event Date | 6/12/1997 |
| Event Day of the Week | Thursday |
| Time of Event | 1000 |
| Event Time Zone | Central Daylight Time |
| Event City | SWIFTON |
| Event State | ARKANSAS |
| Event Country | -- |
| Zipcode of the event site | 72471 |
| Event Date Year | 1997 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | PRIVATE AIRSTRIP |
| Event Location Nearest Airport ID | NONE |
| 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 | -- |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| 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) | 5 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 250 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 9 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| 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 | Minor |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1760 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jun 12 1997 12:00AM |
| NTSB Notification Time | 1615 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 12:20PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6220C |
| NTSB Number | FTW97LA216 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 137: Agricultural |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Wsk Pzl Mielec |
| Aircraft Model | M-18 |
| Aircraft Series Identifier | M-18 |
| Aircraft Serial Number | 1Z023-01 |
| Certified Max Gross Weight | 9260 |
| 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 | 1 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | May 18 1997 12:00AM |
| Airframe hours since last inspection | 90 |
| Airframe Hours | 2816 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | LEON JACOBY |
| Aircraft Owner Street Address | P.O. BOX 1066 |
| Aircraft Owner City | TUCKERMAN |
| Aircraft Owner State | AR |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 72573 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | PO BOX 1066 |
| Operator City | TUCKERMAN |
| Operator State | AR |
| Operator Country | |
| Operator Zip code | 72573 |
| 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 | Unknown |
| Indicates Domestic or International Flight | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown |
| Type of Flying (Per_Bus / Primary) | Aerial Application |
| Second Pilot on Board | No |
| Departure Point Same as Event | Yes |
| Departure Airport Code | NONE |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1000 |
| 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 | Takeoff |
| 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 | 36 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |