Individually Owned: 150,657
Corporate Owned: 137,281
Grand Forks-Mark Andrews Airport
Aircraft Accident/Incident Report
Grand Forks, North Dakota 58201
Tuesady, August 26, 1986 15:35 CDT
NTSB Narrative Summary Released at Completion of Accident
THE ACFT WAS EN ROUTE FROM FLIN FLON AIRPORT, MANITOBA, CD, TO MASON CITY, IA, AND HAD STOPPED AT GRAND FORKS, ND, FOR FUEL AND TO CLEAR CUSTOMS. DURING TAXI FOR TAKEOFF, THE ACFT STRUCK A 1-INCH CONCRETE LIP ON THE RAMP AND THE RIGHT MAIN LANDING GEAR COLLAPSED. POST ACCIDENT EXAMINATION REVEALED THE ACTUATOR ROD END WAS BENT AND ONE OF FOUR SPRINGS ON THE OVERCENTER CAM DEVICE WAS DETACHED FROM ITS PROPER ATTACH POINT AND WAS EXCESSIVELY STRETCHED. WITH THE ACFT ON JACKS THE SPRING WAS REATTACHED AND THE GEAR WAS EXTENDED, TRAPPING THE SPRING BETWEEN THE DOWNLOCK SWITCH AND THE DOWNLOCK OVERCENTER MECHANISM. WITH SOME WEIGHT APPLIED TO THE LANDING GEAR, A FIRM UPWARD PRESSURE WAS APPLIED TO THE OVERCENTER DEVICE AND THE RIGHT MAIN LANDING GEAR RETRACTED. FURTHER TESTS REVEALED THAT THE LANDING GEAR SELECTOR HANDLE DID NOT ALWAYS CATCH THE SAFETY LATCH WHEN PLACED IN THE NEUTRAL POSITION, AND THAT IT WAS POSSIBLE FOR THE SELECTOR TO GO FROM DOWN TO UP WITHOUT TRIGGERING THE LATCH.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 8/26/1986 |
| Event Day of the Week | Tuesday |
| Time of Event | 1535 |
| Event Time Zone | Central Daylight Time |
| Event City | GRAND FORKS |
| Event State | NORTH DAKOTA |
| Event Country | -- |
| Zipcode of the event site | 58201 |
| Event Date Year | 1986 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | GRAND FORKS-MARK ANDREWS |
| Event Location Nearest Airport ID | GFK |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 844 |
| 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) | 15 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 360 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 10 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| 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 | 6 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1018 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 26 1986 12:00AM |
| NTSB Notification Time | 1750 |
| Fiche Number and/or location -used to find docket information | 31369 |
| Date of most recent change to record | Jan 2 2001 9:14AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N900TS |
| NTSB Number | DEN86LA239 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | PIPER |
| Aircraft Model | PA-23E-250 |
| Aircraft Series Identifier | PA-23E-250 |
| Aircraft Serial Number | 27-7405429 |
| Certified Max Gross Weight | 5200 |
| 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 | 6 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Unknown |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | |
| Aircraft Owner Street Address | |
| Aircraft Owner City | |
| Aircraft Owner State | |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | |
| Operator is an individual? | -- |
| Operator Name | JAMES KENNEY |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | HAROLD DAVIDSON FIELD |
| Operator City | VERMILLION |
| Operator State | SD |
| Operator Country | |
| Operator Zip code | 57069 |
| Operator Code | |
| Owner has at least one certificate | Yes - certificate holder |
| 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 | Yes |
| Departure Airport Code | GFK |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1355 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | MCW |
| Destination City | MASON CITY |
| Destination State | IA |
| Destination Country | |
| Specific Phase of Flight | Taxi |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |