NTSB investigations: Amateur-built UNKNOWN ENG

48 cases on aircraft whose registry engine model is Amateur-built UNKNOWN ENG, where the first occurrence was “In flight collision with object”. 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

19822026
NTSB investigations: Amateur-built UNKNOWN ENG per year, 1982–2026: 48 cases
19822
19841
19852
19861
19872
19891
19933
19941
19953
19961
19991
20002
20013
20026
20037
20044
20052
20061
20075

Latest 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('99999')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 220))
  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.

NTSB MIA08CA025Accident · No injuriesData collectionFinal reportMessing Roy Sonex · New Smyrna Beac, FLThe pilot's failure to maintain altitude/clearance while on final approach for landing.Dec 6, 2007 · N130SX · Substantial damageNTSB CHI08LA037Accident · 2 fatalLimited investigationFinal reportPadelt PG37-1 · Hampton, IAThe pilot's inadequate in-flight planning which resulted in the failure to maintain clearance with the power lines. Contributing to the accident was the power line.Nov 16, 2007 · N4448Y · Substantial damageNTSB LAX08CA003Accident · No injuriesData collectionFinal reportLet Blanik L-13 · Hemet, CAThe pilot's failure to maintain a proper descent rate due to his failure to close the air brake and/or partially retract the flaps during an encounter with lost lift on final approach.Oct 6, 2007 · N510CS · Substantial damageNTSB DFW08LA001Accident · Serious injuriesLimited investigationFinal reportIndus T211 Thorpedo · Denton, TXThe pilot's improper preflight planning and preparation which led to his getting lost on a local area flight and his failure to maintain clearance from the trees. Contributing to the accident were the prevailing dark night illumination and the pilot's lack of…Oct 5, 2007 · N211LS · Substantial damageNTSB CHI07FA052Accident · 1 fatalField investigationFinal reportBeech 58 · Washington, INThe pilot's failure to maintain clearance from trees and terrain while attempting to return to the departure airport for undetermined reasons after takeoff. The intervening tree line was a contributing factor.Jan 2, 2007 · N678DC · DestroyedNTSB 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.Aug 15, 2006 · N232S · Substantial damageNTSB MIA05CA161Accident · Minor injuriesData collectionFinal reportVans RV-3 · Bell, FLThe pilot's failure to maintain visual lookout during a VFR approach toward the runway resulting in-flight collision with trees. Factors in this accident are no lights for the grass strip runway and attempting to land in low natural light visibility…Sep 26, 2005 · N993FL · DestroyedNTSB ATL05LA113Accident · 1 fatalLimited investigationFinal reportMize Donald Kolb MK III X · Dickson, TNThe pilot's failure to maintain adequate obstacle clearance during climb out which resulted in the in-flight collision with a tree.Jun 24, 2005 · N194DM · Substantial damageNTSB ATL05LA035Accident · No injuriesLimited investigationFinal reportBell UH-1H · Rockford, ALThe pilot's failure to maintain adequate obstacle clearance, which resulted in an in-flight collision with a tree.Dec 16, 2004 · N51AG · Substantial damageNTSB CHI04IA260Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas DC-9-82 · Chicago, ILAn in-flight collision with a flock of birds during climb out after takeoff, which damaged the left engine fan module and ruptured a fuel line to the fuel-oil cooler causing an engine fire.Sep 16, 2004 · N253AA · Minor damageNTSB FTW04LA196Accident · Minor injuriesLimited investigationFinal reportEverett Vidrine Dragonfly · Covington, LAthe pilot's inadequate preflight planning which failed to assure adequate takeoff performance for the airplane to clear obstacles. A contributing factor was the pilot's failure to abort the takeoff.Jul 23, 2004 · N89VE · Substantial damageNTSB FTW04FA167Accident · 2 fatalField investigationFinal reportBell 206B · Cushing, OKthe pilot's inadequate in-flight planning/decision and his failure to maintain obstacle clearance. Contributing factors were low altitude flight, sun glare, and the static wires.Jun 27, 2004 · N27TV · DestroyedNTSB LAX04LA055Accident · Minor injuriesLimited investigationFinal reportGoodyear GZ-20A · Gardena, CAThe pilot's delayed go-around during final approach to land, which resulted in an in-flight collision with a fence. A factor associated with the accident is the pilot's failure to maintain adequate altitude/clearance from obstructions.Dec 4, 2003 · N10A · Substantial damageNTSB NYC04LA008Accident · Minor injuriesLimited investigationFinal reportSibila VP 1 · Cincinnati, OHThe pilot's delayed decision to abort the takeoff, which resulted in a collision with trees.Oct 13, 2003 · N4087F · Substantial damageNTSB CHI03LA309Accident · Minor injuriesLimited investigationFinal reportStrother KR2 · Clarinda, IAFailure of the pilot to maintain clearance from the roadway sign. The loose gravel and the sign were contributing factors.Sep 11, 2003 · N60MS · Substantial damageNTSB NYC03LA111Accident · Serious injuriesLimited investigationFinal reportVirginia Wright Model B · Midland, VAThe pilot's failure to maintain aircraft control.May 20, 2003 · N1911K · Substantial damageNTSB MIA03LA045Accident · 1 fatalLimited investigationFinal reportBornhofen Twinjet 1500 · Melbourne, FLthe pilot-in-command failed to obtain sufficient altitude to clear obstacles at the approach end of the airport which resulted in an in-flight collision with trees.Jan 24, 2003 · N750TJ · DestroyedNTSB LAX03FA072Accident · 1 fatalField investigationFinal reportCirrus Design SR 20 · San Jose, CAThe pilot's failure to maintain the course for the published approach procedure due to his diverted attention. The distraction responsible for the pilot's diverted attention was the erroneous frequency assignment provided by ATC and the resultant task…Jan 24, 2003 · N893MK · DestroyedNTSB ATL03LA037Accident · 1 fatalLimited investigationFinal reportLong 2000 · Brewton, ALThe pilot's improper use of flight controls (cyclic and collective) and failure to maintain rotor RPM while maneuvering that resulted in the separation of the tailboom assembly.Jan 24, 2003 · N8YF · Substantial damageNTSB MIA02LA171Accident · No injuriesLimited investigationFinal reportJohnson Hornet · Archdale, NCthe pilot's failure to maintain directional control during final approach, which resulted in the airplane drifting off course and impacting with trees. Factors in this accident were the pilot's attention being diverted due to the right door not being secured.Sep 21, 2002 · N1928J · Substantial damageNTSB MIA02LA154Accident · Minor injuriesLimited investigationFinal reportBell 47-D1 · Union, SCthe pilot's failure to maintain obstacle clearance.Aug 20, 2002 · N4702S · Substantial damageNTSB 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.Jun 15, 2002 · N598HL · DestroyedNTSB MIA02FA106Accident · Minor injuriesField investigationFinal reportHelicopters & Exec 162F · Tampa, FLThe pilot's intentional operation of the helicopter while impaired by alcohol and a drug (zolpidem) resulting in the in-flight collision with a house.Jun 4, 2002 · N268MA · Substantial damageNTSB ATL02LA102Accident · No injuriesLimited investigationFinal reportBell 47G · Marion, ALThe pilot's failure to maintain visual lookout while conducting an aerial application maneuver. A factor was the transmission line.May 21, 2002 · N72MU · Substantial damageNTSB NYC02LA046Accident · No injuriesLimited investigationFinal reportLet L-23 · Sterling, MAThe student pilots inadequate compensation for wind conditions which resulted in an off-field landing, and the CFI's improper decision to allow the student to fly solo. Factors related to the accident were the gusting wind conditions, and the students lack of…Jan 1, 2002 · N117BB · Substantial damageNTSB IAD01LA087Accident · Serious injuriesLimited investigationFinal reportCharles Lancair 320 · Charleston, NYThe pilot's failure to maintain control of the airplane while maneuvering, which resulted in a collision with trees.Jul 27, 2001 · N92SB · Substantial damageNTSB CHI01LA171Accident · No injuriesLimited investigationFinal reportLarson Murphy Rebel · Stratford, WIThe pilot's failure to abort the takeoff from the farm field. Factors were the tall grass, the rising terrain, the fence, and the inadequate planning/decision by the pilot.Jun 17, 2001 · N622GL · Substantial damageNTSB IAD01LA069Accident · Serious injuriesLimited investigationFinal reportBucker Jungmann C.A.S.A. 1.131 · Plymouth, MAThe pilot's failure to maintain altitude during an approach and inadequate visual lookout, which resulted in a collision with a runway sign.Jun 15, 2001 · N131HH · Substantial damageNTSB SEA01LA009Accident · No injuriesLimited investigationFinal reportHallett HALLETT-1 · Yelm, WAThe pilot's failure to abort the takeoff when it became questionable as to whether the aircraft would be able to clear an object just off the departure end of the runway, and the pilot's failure to maintain clearance from the object as he attempted to…Oct 21, 2000 · N8331H · Substantial damageNTSB CHI00LA210Accident · No injuriesLimited investigationFinal reportGrumman G164 · Mcville, NDthe pilot's failure to maintain clearance with the power lines. A factor associated with the accident was the power line.Jul 10, 2000 · N10244 · Substantial damageNTSB NYC99LA221Accident · 1 fatalLimited investigationFinal reportValenza Volksplane VP-II · Westmore, VTThe pilot's failure to maintain adequate altitude/clearance from the trees. A related factor was the pilot's lack of familiarity with the airplane.Sep 6, 1999 · N8535B · DestroyedNTSB SEA96LA220Accident · No injuriesLimited investigationFinal reportRalph Taylor Royal T · Kent, WAin-flight collision with an unknown object.Sep 25, 1996 · N2554 · Substantial damageNTSB FTW95LA358Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Taft, TXThe pilot's diverted attention, which resulted in his failure to assure that clearance was maintained from the transmission line.Aug 22, 1995 · N9190Q · DestroyedNTSB LAX95LA244Accident · No injuriesLimited investigationFinal reportPiper PA-38-112 · Rubidoux, CAthe pilot's inadequate preflight planning/preparation in that he attempted to fly an aircraft without first verifying the aircraft's gross weight and published performance capabilities.Jul 9, 1995 · N2529A · Substantial damageNTSB CHI95LA141Accident · Minor injuriesLimited investigationFinal reportSorrel SNS-4 · Menomonee Falls, WIthe pilot's failure to maintain clearance with transmission wires. A factor in the accident was the transmission wires.May 1, 1995 · N2026 · Substantial damageNTSB FTW95FA020Accident · 1 fatalField investigationFinal reportBrantly Helicopter B-2 · Artesia, NMThe pilot's impairment of judgment and performance due to drugs, and his failure to maintain clearance from a powerline.Oct 22, 1994 · N5905X · DestroyedNTSB FTW93LA263Accident · 1 fatalLimited investigationFinal reportWsk Pzl Mielec M-18A Dromader · Frogmore, LAThe pilot's failure to maintain clearance with the powerline. A factor was the dusk light condition.Sep 23, 1993 · N452TC · DestroyedNTSB FTW93LA146Accident · Minor injuriesLimited investigationFinal reportPzl-Mielec PZL-M-18 · De Witt, ARCompensation for wind improper by pilot. Factors were tailwind and downdraftMay 1, 1993 · N28587 · DestroyedNTSB LAX93LA148Accident · 1 fatalLimited investigationFinal reportLangerud Varieze · Zenia, CAThe pilot's poor weather evaluation and continued flight into instrument meteorological conditions. The low ceiling was a factor.Mar 2, 1993 · N91CL · DestroyedNTSB ATL89FA196Accident · 1 fatalField investigationFinal reportBeech A-36 · Chapel Hill, NCThe pilot's failure to maintain control of the airplane while maneuvering for a landing. Contributing factors were: the pilot's failure to follow the emergency procedures for an autopilot malfunction, and pilot fatigue.Aug 12, 1989 · N25805 · DestroyedNTSB ATL87LA207Accident · Serious injuriesLimited investigationFinal reportAerostar RX-7 · Crestwood, KYThe balloon contacted power lines as it was beginning to climb after an aborted ldg attempt. Electrical arcing ignited the propane fuel supply on board. The sole-occupant student plt jumped from the burning balloon and fell approx 40 ft onto a fence. The…Jul 9, 1987 · N2897H · Substantial damageNTSB DEN87LA124Accident · No injuriesLimited investigationFinal reportBrantly Helicopter 305 · Golden, COThe commercial plt was performing hover tests in his experimental helicopter at his private helipad, located 60 feet from his residence. The plt reported winds as variable gusting to 40 knots. The plt's attention was diverted and a wind gust pushed the…May 14, 1987 · N5JM · Substantial damageNTSB CHI87LA032Accident · No injuriesLimited investigationFinal reportBurkhart Grob 109B · Gregory, MIWhile landing, the aircraft bounced twice, so the pilot decided to go around and make a second attempt. On climb out, the landing gear struck 65 ft tall trees at the end of the runway. The aircraft then stalled and collided with the terrain. Reportedly, the…Nov 15, 1986 · N58287 · Substantial damageNTSB CHI85LA180Accident · No injuriesLimited investigationFinal reportMitchell Monnett Moni · Athens, MIThe plt of the home-built/powered glider initiated a touch-&-go landing. However, he did not retract the spoilers when he began the takeoff portion of the touch-&-go. The acft lifted off into ground effect, but the left wing contacted a rwy light at the…Apr 27, 1985 · N5625J · Substantial damageNTSB CHI85LA175Accident · Minor injuriesLimited investigationFinal reportPiper J-3 · Richfield, OHThe plt made a short field takeoff using aprx 1700 ft of the 2200 ft airstrip. Unable to clear trees along the flt path, he turned to the right. However, the acft's wheel pants contacted a tree while the plane was still banked to the right & a slight amount…Apr 23, 1985 · N87920 · Substantial damageNTSB MIA84LA134Accident · No injuriesLimited investigationFinal reportBell 47D1 · Berlin, GAThe plt collided with power lines as he turned to fly back to reload the acft. The plt made a statement that he did not see the wires in the trees. The plt did not file an accident report.Apr 12, 1984 · N586T · DestroyedNTSB DEN82DA169Accident · Serious injuriesFinal reportQuicksilver Mxii · Broomfield, COReportedly, the pilot made an intersection takeoff from about midfield on runway 02. He stated that he took off at rotation speed plus 2 KTS. The passenger reported that they reached about 40 ft AGL, then lost lift and begun to settle. As the two-place…Aug 20, 1982 · N3149Z · Substantial damageNTSB CHI82DA147Accident · Serious injuriesFinal reportMong Sport MS-1 · Pendleton, INWhen the pilot arrived at anderson, Indiana, he was unable to find the ace airport. He saw huntzinger airport, a private strip, and decided to land to find out exactly where ace airport was located. During an approach to the sod runway, the aircraft collided…May 1, 1982 · N98L · Destroyed