NTSB investigations: Amateur-built UNKNOWN ENG, WY
18 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
| 1974 | 1 |
|---|---|
| 1986 | 1 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 2003 | 2 |
| 2005 | 1 |
| 2011 | 2 |
| 2013 | 1 |
| 2017 | 2 |
| 2018 | 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\" = 'WY' 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" = 'WY' 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 WPR25LA201Accident · Minor injuriesClass 4 · LimitedFinal reportLancair IV · Alpine, WYThe pilot’s loss of visual reference during the landing approach which resulted in a collision with water.NTSB WPR19LA029Accident · No injuriesClass 3 · LimitedFinal reportBKF Backcountry Supercub · Casper, WYThe seizure of two bearings in the reduction gearbox, resulting in the total loss of engine power. Contributing to the accident was a high descent rate which resulted in a hard landing.NTSB GAA17CA512Accident · No injuriesData collectionFinal reportAviat A 1 · Cody, WYThe pilot’s failure to maintain directional control during the landing roll.NTSB GAA17CA251Accident · No injuriesData collectionFinal reportBender Joseph KIT Rotoway · Wheatland, WYThe pilot's decision to operate the helicopter in gusting wind and high-density altitude conditions and his positioning of the helicopter such that it resulted in a right quartering tailwind, which resulted in a loss of helicopter control due to a loss of…NTSB WPR13FA405Accident · 2 fatalField investigationFinal reportKamtz RV-7A · Jackson Hole, WYA loss of engine power for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation. Also causal was the pilot’s failure to adequately compensate for the…NTSB WPR11CA399Accident · No injuriesData collectionFinal reportRichmond Jim R CCK-1865 · Dubois, WYThe pilot's failure to maintain clearance from a wire during cruise flight.NTSB WPR11LA280Accident · No injuriesLimited investigationFinal reportInhofe/ Davis Vans RV-8 · Sheridan, WYThe pilot's inadequate directional control during the landing roll.NTSB DEN05LA059Accident · 1 fatalLimited investigationFinal reportBourgeois-Avid Flyer MK IV · Kaycee, WYthe pilot's failure to maintain airspeed which resulted in a stall.NTSB DEN03FA138Accident · 1 fatalField investigationFinal reportWright Hughes 1-B · Yellowstone Nat, WYThe in-flight loss of a propeller counterweight, followed by the pilot's loss of aircraft control during a forced landing attempt and subsequent inadvertent stall/spin to the ground.NTSB DEN03FA125Accident · 2 fatalField investigationFinal reportCASA 2.111 · Cheyenne, WYA loss of engine power for reasons undetermined, and the pilot's failure to maintain aircraft control. Contributing factors were the unsuitable terrain on which to make a forced landing, low airspeed, the fence, automobile, and the school bus wash barn.NTSB FTW98FA354Accident · 1 fatalField investigationFinal reportMooney M20J · Centennial, WYThe pilot's disregard of information provided in weather briefs, and his flight into known adverse weather in mountainous terrain which resulted in an in-flight collision with a mountain. Factors were rain and low ceiling/visibility.NTSB FTW97LA337Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Saratoga, WYThe pilot's failure to consult airplane performance data based upon the weather conditions that prevailed. Factors were terrain induced turbulence and high density altitude.NTSB SEA96LA191Accident · No injuriesLimited investigationFinal reportChampion 7ECA · Lander, WYthe pilot's failure to maintain directional control of the airplane during the landing roll. Factors relating to the accident were: the variable and gusty wind conditions.NTSB SEA92LA169Accident · No injuriesLimited investigationFinal reportGreth Cirrus VK30 · Rawlins, WYThe pilot in command's failure to maintain control of the aircraft. Factors contributing to the accident were: crosswinds and gusts.NTSB SEA91LA106Accident · No injuriesLimited investigationFinal reportBeech A36 · Rawlins, WYThe pilot's lack of familiarity with the aircraft, his lack of understanding of the electrical system, and a premature precautionary landing. Contributing to the accident were an alternator failure and the resultant false readings of the powerplant…NTSB DEN89LA165Accident · Minor injuriesLimited investigationFinal reportHenry Vickers HCV-110 · Newcastle, WYThe failure to the magneto. The selection of a powerplant with a single magneto system was an improper choice and directly contributed to the cause. The pilot's misjudgement of the wind for the approach to a forced landing resulted in an improper ground…NTSB DEN86FTI01Accident · Minor injuriesFinal reportMiller Sievers Special · Gillette, WYOn March 3, 1986 at approximately 1715 MST, an experimental Miller, sievers special, struck the ground during takeoff at the Gillette-campbell county airport, Gillette, Wyoming. The pilot stated that just after takeoff on runway 34, the aircraft appeared to…NTSB DEN74DTC40Accident · Minor injuriesClosedChampion 7GCBC · Lingle, WY