NTSB investigations: Amateur-built UNKNOWN ENG, MN
32 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1966 | 1 |
|---|---|
| 1977 | 1 |
| 1979 | 2 |
| 1980 | 1 |
| 1983 | 1 |
| 1984 | 2 |
| 1986 | 2 |
| 1990 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 3 |
| 2013 | 1 |
| 2014 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE c.\"eventStateOrRegion\" = 'MN' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'MN' AND c."eventCountry" = 'USA'
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN25LA258Accident · No injuriesClass 4 · LimitedFinal reportZenith Stol CH701 · Blaine, MNThe pilot’s failure to maintain directional control while landing with a crosswind.NTSB CEN23LA109Accident · No injuriesClass 4 · LimitedFinal reportCessna 150 · Montevideo, MNThe pilot’s failure to maintain directional control during the landing roll.NTSB CEN22LA191Accident · Serious injuriesClass 3 · LimitedFinal reportVans RV6A · Mankato, MNThe pilot’s failure to maintain directional control while landing with a higher airspeed.NTSB CEN18LA237Accident · No injuriesLimited investigationFinal reportZenith Stol CH701 · Maple Lake, MNThe total loss of engine power for reasons that could not be determined based on the available evidence.NTSB CEN17LA117Accident · Serious injuriesLimited investigationFinal reportJude Mike C Side Winder · Paynesville, MNThe pilot’s inadequate preflight inspection, during which he failed to ensure that there was sufficient coolant in the engine reservoir, which resulted in the engine getting too hot and the engine control module shutting down the engine.NTSB CEN14LA244Accident · Minor injuriesLimited investigationFinal reportCrawford Preceptor Ultra PUP · Mabel, MNThe loss of engine power as a result of carburetor icing.NTSB CEN14CA156Accident · No injuriesData collectionFinal reportOlson Kenneth H T Zodiac 601 HDS · Garrison, MNThe pilot's failure to maintain directional control during takeoff which resulted in the airplane striking a snow bank.NTSB CEN13LA418Accident · No injuriesLimited investigationFinal reportMarino Benoist Type XIV · Duluth, MNThe pilot's failure to maintain control of the seaplane during its initial flight test. Contributing to the accident was the pilot's overall lack of flight experience in the seaplane.NTSB CEN12CA588Accident · Minor injuriesData collectionFinal reportTrick Trikes Stss · Wanamingo, MNThe pilot's failure to maintain adequate airspeed while maneuvering at low altitude, which resulted in an aerodynamic stall.NTSB CEN12CA597Accident · No injuriesData collectionFinal reportBordelon Bruce Kitfox IV · Castlerock, MNPropeller system failure during a go-around maneuver resulting in a forced landing. Contributing to the severity of damage to the airplane was the postimpact fire.NTSB CEN12LA452Accident · Minor injuriesLimited investigationFinal reportMikoyan Gurevich MIG 21MF · Minneapolis, MNThe pilot's delayed application of wheel brakes to slow the airplane down on landing and the airplane’s failed drag chute, which resulted in a runway overrun.NTSB CEN11LA499Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Fergus Falls, MNThe total loss of engine power for reasons that could not be determined because the airplane came to rest inverted in water.NTSB CEN10CA304Accident · No injuriesData collectionFinal reportBordelon Kitfox IV · Stanton, MNThe pilot’s inadvertent propeller blade pitch change and subsequent loss of forward thrust.NTSB CEN09CA592Accident · No injuriesData collectionFinal reportBordelon Kitfox IV · Dodge Center, MNThe pilot's improper glide path during landing.NTSB CHI08LA154Accident · No injuriesLimited investigationFinal reportBeech A36 · Grand Rapids, MNA loss of engine thrust due to the propeller separating from the aircraft as a result of fatigue failure of the propeller attachment bolts caused by the insufficient torque of the bolts during installation.NTSB CHI07LA272Accident · 1 fatalLimited investigationFinal reportClifford Titan Tornado II · Henning, MNThe inadvertent stall and low airspeed while maneuvering. A contributing factor was the low altitude of the maneuver.NTSB CHI06CA233Accident · No injuriesData collectionFinal reportHoyt Kolb Mark III Clsc · Lakeville, MNThe pilot's failure to maintain clearance from the crops which resulted in the subsequent impact with the ground.NTSB CHI05CA005Accident · No injuriesData collectionFinal reportBuss Rotorway Exec · Eden Prairie, MNThe pilot's inadvertent deactivation of the battery switch leading to the helicopter's loss of engine power on base leg. A factor was the crops he encountered during the emergency landing.NTSB CHI04CA190Accident · No injuriesData collectionFinal reportSelby Dean KR-2-SS · Lake Elmo, MNThe pilot's inadequate compensation for wind conditions and his failure to maintain aircraft control. A related factor was the crosswind.NTSB CHI03LA214Accident · No injuriesLimited investigationFinal reportAyres S2R-G10 · Staples, MNThe fatigue fracture of the oil jet flange resulting in a total engine failure during the aerial application.NTSB CHI02LA165Accident · No injuriesLimited investigationFinal reportFirm Kit Fox 4-1200 · Virginia, MNAn in-flight collision with a bird that resulted in severed fuel lines and the subsequent in-flight fire and loss of engine power. A factor in the accident was the soft terrain condition.NTSB CHI90DER04Accident · Minor injuriesFinal reportBD 4- Francisco BD-4 · Rosemount, MNFailure of the manufacturer (amateur built) to design fuel system adequately to prevent vapor lock in fuel line.NTSB CHI86IA115Incident · No injuriesIncident investigationFinal reportBoeing 757-251 · Minneapolis, MNN508US was operating as nwa flt 150. The captain stated after the incident that the flt was uneventful until landing. Upon landing and spoiler deployment, the acft pitched up abruptly, to an attitude of 10 degrees. The landing was completed without incident.…NTSB CHI86FER02Accident · Minor injuriesFinal reportMonnett Moni · Winona, MNThe acft crash landed off the arpt due to a reported loss of power. The plt landed in a small field surrounded by hills. The acft sink rate during the landing was high and the acft was damaged. Inspection of the eng after the acc was not accomplished due to…NTSB CHI84LA272Accident · Minor injuriesLimited investigationFinal reportHoward E. Lee Rutan Long EZ · Minneapolis, MNThe plt claimed a loss of power during takeoff. He turned and attempted a landing on the arpt. The rwy was overrun and the acft stopped in a wheat field. Post accident examination of the engine revealed no discrepancies.NTSB CHI84LA245Accident · Serious injuriesLimited investigationFinal reportBell 47-G2 · Nimrod, MNWhile landing in an area of tall grass a skid collided with a sand ridge causing a roll over.NTSB CHI83LA197Accident · Serious injuriesLimited investigationFinal reportHolmes XTC2 · River Falls, MNThe acft pulled up steeply after takeoff and stalled. The acft crashed back on the rwy. The pilot said he reduced power after takeoff and the acft stalled. He also said if he had not reduced power the accident would not have happened.NTSB CHI80DER43Accident · No injuriesClosedHughes 269C · Willmar, MNNTSB MKC79DER74Accident · Minor injuriesClosedPietenpol Aircmp · Minneapolis, MNNTSB MKC79FER63Accident · No injuriesClosedHughes 269C · Willmar, MNNTSB MKC77DER74Accident · No injuriesClosedPietenpol-A Scout · Mankato, MNNTSB MKC67F0190Accident · No injuriesClosedVollmer VJ-22 · Waubun, MN