NTSB investigations: Amateur-built UNKNOWN ENG, PA
42 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 |
|---|---|
| 1974 | 2 |
| 1979 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1990 | 2 |
| 1991 | 2 |
| 1996 | 2 |
| 1998 | 2 |
| 1999 | 3 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 1 |
| 2006 | 1 |
| 2007 | 2 |
| 2009 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
| 2026 | 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\" = 'PA' 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" = 'PA' 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 ERA26LA353Accident · No injuriesClass 4 · LimitedInvestigation openRoberts GS-2 Sportsman · Kerrtown, PANTSB ERA24LA195Accident · No injuriesClass 4 · LimitedFinal reportReddick Jonathan L Zodiac 601XLB · Dunbar, PAA total loss of engine power as a result of an improperly fabricated fuel-air mixture cable bracket. Contributing was the pilot’s decision to fly the airplane with a known mechanical engine issue, and the presence of another airplane that was back taxiing on…NTSB ERA23FA045Accident · 2 fatalClass 3 · FieldFinal reportBearhawk Patrol · Hanover Township, PAThe pilot’s decision to unlatch his seatbelt during flight, which allowed him to exit the airplane and impact the tail, resulting in a loss of control and impact with terrain.NTSB ERA22LA018Accident · Serious injuriesClass 3 · LimitedFinal reportZ-Hi-Max 1400 · Benton, PAThe pilot’s loss of control and encounter with an aerodynamic stall during a planned low-altitude turn toward the airport after takeoff.NTSB ERA20FA013Accident · 1 fatalClass 3 · FieldFinal reportSportine Aviacija LAK17B · Tamaqua, PAThe pilot's exceedance of the glider's critical angle of attack while climbing in thermal lift, which resulted in an aerodynamic stall/spin.NTSB ERA19FA275Accident · 2 fatalClass 3 · FieldFinal reportVans RV 8 · Stroudsburg, PAThe pilot's failure to maintain control of the airplane for undetermined reasons.NTSB GAA18CA540Accident · No injuriesData collectionFinal reportYakovlev YAK 52 · East Stroudsburg, PAThe pilot's failure to extend the landing gear during landing, which resulted in a runway excursion and subsequent impact with terrain.NTSB GAA18CA083Accident · No injuriesData collectionFinal reportMichael Adamczyk Zenith CH750 · Franklin, PAThe pilot’s excessive application of aft stick during takeoff, which resulted in an aerodynamic stall. Contributing to this accident was the pilot’s inexperience in the airplane.NTSB ERA16FA064Accident · 3 fatalField investigationFinal reportBeech A36 · Farmington, PAThe pilot's failure to maintain control of the airplane after a cabin door came open in flight, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's misuse of…NTSB ERA14LA358Accident · Serious injuriesLimited investigationFinal reportWinder Robert S VP1 · Grove City, PAA collision with terrain during the landing approach for reasons that could not be determined based on available information.NTSB ERA14LA351Accident · Serious injuriesLimited investigationFinal reportSiler Ronald E Ultrastar · Halifax, PAA total loss of engine power for reasons that could not be determined because the engine was not recovered. Contributing to the accident was the pilot's failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle-of-attack during…NTSB ERA13LA288Accident · Serious injuriesLimited investigationFinal reportHagerty RV-7A · Altoona, PAThe pilot's improper recovery from an encounter with a wind gust during landing, which resulted in a hard landing on, and displacement of, the nose landing gear and a subsequent runway excursion and noseover.NTSB ERA13LA263Accident · 1 fatalLimited investigationFinal reportWilson William M Cricket MC12 · Doylestown, PAThe pilot's failure to abort the takeoff after detecting the airplane’s degraded performance. Contributing to the accident were the likely loss of power from the left engine for reasons that could not be determined during the postaccident examination of the…NTSB ERA12LA373Accident · Minor injuriesLimited investigationFinal reportFaltin John R Rotorway Exec 162F · Smoketown, PAA loss of control during a post-maintenance test flight due to improper tracking of the helicopter’s main rotor blades by the pilot/aircraft builder.NTSB ERA12FA120Accident · 1 fatalField investigationFinal reportCessna 441 · Nashville, PAThe pilot's failure to maintain minimum control airspeed after a loss of power to the right engine, which resulted in an uncontrollable roll into an inadvertent stall/spin. Contributing to the accident was the failure of the airplane's right engine for…NTSB ERA09CA381Accident · Serious injuriesData collectionFinal reportThompson David Challenger · Waymart, PAThe pilot's failure to maintain adequate airspeed during approach to land resulting in a stall.NTSB NYC08FA023Accident · 1 fatalField investigationFinal reportDaniel R. Lloyd Trish's Ride Home · Greenville, PAThe pilot/builder's improper installation of the electrical system.NTSB LAX07LA220Accident · Serious injuriesLimited investigationFinal reportMurrin Frederick L Sopwith F1 · Greenville, PAa fuel starvation induced loss of engine power due to inadequate fuel system pressure. A factor in the accident was the pilot/builder's failure to adequately adjust the fuel system pressure.NTSB NYC07LA026Accident · 1 fatalLimited investigationFinal reportVogel Glastar 41 · Snow Shoe, PAThe builder's improper installation of an additional alternator. Contributing to the accident were the night lighting conditions.NTSB NYC02FA159Accident · 1 fatalField investigationFinal reportSchempp-Hirth Standard Cirrus · Hilltown, PAThe pilot's improper pre-flight, and failure to follow procedures in the flight manual to determine that the stabilator was properly connected prior to flight, and which resulted in a loss of control while under tow, and uncontrolled impact with the ground.NTSB NYC01LA221Accident · No injuriesLimited investigationFinal reportde Havilland DHC-94 Moth Minor · Farmington, PAThe in-flight separation of a propeller blade, which resulted in a forced landing to unsuitable terrain. A factor related to the accident was the plowed field.NTSB NYC00LA156Accident · Minor injuriesLimited investigationFinal reportStewart S-51 · Forty Fort, PAThe owner/builder's inadequate design, resulting in total failure of the reduction gear assembly accessory drive shaft.NTSB IAD00LA039Accident · Minor injuriesLimited investigationFinal reportRotorway Rotorway 162F Exec · Mcmurray, PAThe pilot's improper in-flight planning and decision to hover out of ground effect which resulted in a loss of tail rotor effectiveness.NTSB IAD00LA005Accident · No injuriesLimited investigationFinal reportAnkenbruck SEA Hawk · Somerset, PAThe pilot's improper preflight which resulted in a loss of power due to contaminated fuel, and the pilot's failure to maintain aircraft control after the loss of power. A factor in the accident was fuel contamination.NTSB NYC99LA072Accident · Minor injuriesLimited investigationFinal reportMiner Rotorway Exec 162F · Mechanicsburg, PAThe pilot's inadvertent induced dynamic rollover. A factor in the accident was the pilot's lack of helicopter experience.NTSB IAD99LA030Accident · Minor injuriesLimited investigationFinal reportWSK PZL Krosno KR-03A · Kutztown, PAwas the in-flight encounter with thermal sink over unsuitable terrain for landing.NTSB NYC99LA008Accident · No injuriesLimited investigationFinal reportWSK PZL Krosno KR-03A · Hilltown, PAThe pilot's misjudgment of altitude/distance which resulted in an in-flight collision which trees.NTSB IAD98LA074Accident · No injuriesLimited investigationFinal reportAmerican Blimp ABC-A-60 · Lock Haven, PAthe pilot's encounter with unforecasted downdrafts.NTSB NYC96LA114Accident · Minor injuriesLimited investigationFinal reportWaco UPF-7 · East Canton, PAthe pilot's inadequate compensation for wind conditions, and his failure to maintain directional control, which resulted in a loss of control and subsequent collision with obstacles. The gusty crosswind condition was a related factor.NTSB IAD96LA077Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Hellam, PAthe pilot's loss of directional control during aerial application for undetermined reasons.NTSB NYC91LA143Accident · No injuriesLimited investigationFinal reportCessna 120 · Wellsville, PAA power loss due to a fuel system blockage which resulted in a forced landing.NTSB NYC91DGT04Accident · No injuriesFinal reportGeorge E Heide, JR. Moni Motorglider · Annville, PAThe pilot's intentional landing on unsuitable terrain due to a loss of altitude precipitated by a downdraft.NTSB NYC91LA032Accident · Serious injuriesLimited investigationFinal reportBurkhart Grob G103A · Erwinna, PAThe student pilot's improper landing technique and the instructor's inadequate supervision.NTSB NYC91LA007Accident · No injuriesLimited investigationFinal reportWaco UPF-7 · Erwinna, PAThe pilot's failure to maintain directional control during the take off roll.NTSB NYC87LA238Accident · Serious injuriesLimited investigationFinal reportBoeing B-17G · Beaver Falls, PADrg an apch in gusty winds, the plt noted a rgt x-wind. He stated that after touchdown, the roll-out was stabilized for a short distance, then the rgt wing began to lift. He applied full aileron & rudder to maint control, but was unable to stop on the…NTSB NYC86LA160Accident · No injuriesLimited investigationFinal reportHiller 12C · Lehighton, PAThe pilot of the Hiller 12C reported an overheated engine followed by an engine failure. During the forced landing the main rotor flexed and cut the tail boom off the the aircraft. The aircraft was examined. 10 oz. Of a liquid was found in the fuel system. 7…NTSB NYC83LA135Accident · Serious injuriesLimited investigationFinal reportBurkhart Grob 109 · Finleyville, PAThe motorized glider collided with trees and the terrain during an emergency landing after the prop had struck the ground during takeoff. During the takeoff roll the propeller 1st collided with high grass and then a bump in the ground after the pilot lost…NTSB NYC82DA178Accident · No injuriesFinal reportPiper PA-28-181 · Dubois, PAAfter power interruption during cruise the pilot returned to the airport for landing. Turning base leg the engine ouit. The pilot cut short the base leg and landed on the grass beside runway 25. No reasons for engine malfunction was found.NTSB NYC79FA023Accident · Serious injuriesClosedBeech C45 · Reading, PANTSB NYC75FHD10Accident · No injuriesClosedEnstrom F-28A · Media, PANTSB NYC75FGT03Accident · Minor injuriesClosedBensen B-8-VW · Harrisburg, PANTSB NYC67D0179Accident · No injuriesClosedNavion A · Blairsville, PA