NTSB investigations: Amateur-built UNKNOWN ENG, AZ
96 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
| 1964 | 1 |
|---|---|
| 1967 | 1 |
| 1969 | 1 |
| 1972 | 1 |
| 1974 | 1 |
| 1979 | 1 |
| 1981 | 1 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 2 |
| 1990 | 1 |
| 1991 | 2 |
| 1993 | 1 |
| 1994 | 1 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 4 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 7 |
| 2003 | 2 |
| 2004 | 5 |
| 2005 | 6 |
| 2006 | 2 |
| 2007 | 3 |
| 2008 | 2 |
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 5 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 2 |
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2026 | 2 |
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\" = 'AZ' 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" = 'AZ' 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 WPR26LA331Accident · Serious injuriesClass 4 · LimitedInvestigation openFilip Richard/Fakowee Avia Indus Thrp T211 SP E · Benson, AZNTSB WPR26LA134Accident · No injuriesClass 4 · LimitedFinal reportZlin Aviation Sro Savage CUB-S · Young, AZThe pilot’s failure to maintain adequate clearance from trees during landing.NTSB WPR24FA185Accident · 1 fatalClass 3 · FieldFinal reportRans S-12XL Airaile · Picacho Peak, AZThe pilot’s decision to conduct a low-altitude flight in mountainous terrain and his subsequent loss of airplane control after encountering mechanical turbulence, which resulted in an impact with the terrain.NTSB WPR24LA162Accident · No injuriesClass 4 · LimitedFinal reportNelson Lawrence K 601 HDS · Somerton, AZThe pilot’s inadequate fuel management which resulted in a total loss of engine power due to fuel starvation.NTSB WPR24LA159Accident · No injuriesClass 3 · LimitedFinal reportNanchang China CJ-6A · Peoria, AZThe partial loss of engine power during cruise flight due to the improper installation of the master connecting rod main bushing set screws, which backed off and allowed the main bushing to shift, resulting in scoring damage on the crankshaft that led to the…NTSB WPR24FA053Accident · 1 fatalClass 3 · FieldFinal reportBeauchamp Norm Kitfox · Eloy, AZThe separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects that prevented the propeller from achieving adequate grip…NTSB WPR24LA015Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1(PT17) · Mesa, AZThe flight instructor’s failure to maintain directional control during the landing roll, which resulted in a ground loop.NTSB WPR23LA132Accident · No injuriesClass 4 · LimitedFinal reportFay David Velocity Elite · Bullhead City, AZThe student pilot’s improper landing during crosswind conditions and the flight instructor’s failure to take remedial action, which resulted in a loss of control.NTSB WPR23LA064Accident · No injuriesClass 4 · LimitedFinal reportArado-Flugzeugwerke FW190 A-5 · Casa Grande, AZThe pilot’s failure to maintain directional control during the landing roll.NTSB WPR22LA318Accident · No injuriesClass 4 · LimitedFinal reportLeon E Everett Carbon CUB EX · Maricopa, AZThe pilot's failure to maintain airplane control during landing with a crosswind and the use of excessive braking application, which resulted in a nose over.NTSB WPR22LA108Accident · No injuriesClass 4 · LimitedFinal reportKitfox S7 · Phoenix, AZThe pilot’s improper landing flare and subsequent failure to maintain directional control of the airplane during landing, which resulted in a runway excursion.NTSB WPR22LA066Accident · Serious injuriesClass 4 · LimitedFinal reportCameron Balloons U S A-315 · Phoenix, AZThe pilot’s inability to maintain balloon control during a high wind landing, which resulted in a serious passenger injury.NTSB WPR22LA035Accident · Minor injuriesClass 3 · LimitedFinal reportSonex Waiex B · Laveen Village, AZFailure of the rocker swivel assembly due to either wear or corrosion, which resulted in a loss of engine power.NTSB WPR20CA293Accident · No injuriesClass 4 · Data collectionFinal reportCessna 172 · Phoenix, AZThe pilot's improper pitch attitude and landing flare, which resulted in a hard landing. Contributing to the accident was the flight instructors delayed remedial action.NTSB WPR20LA177Accident · 1 fatalClass 3 · LimitedFinal reportZenair CH601 · Maricopa, AZThe pilot’s loss of situational awareness and descent below pattern altitude during the landing approach, which resulted in collision with terrain at night.NTSB WPR20LA040Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV 6 · Pima, AZA total loss of engine power for reasons that could not be determined based on the available evidence.NTSB GAA19CA483Accident · Serious injuriesData collectionFinal reportSchleicher ASW 24 · Paulden, AZThe pilot's distraction due to the environment, his failure to lower the landing gear, and his subsequent failure to maintain directional control while landing the glider, which resulted in impact with a utility box.NTSB WPR18LA030Accident · No injuriesLimited investigationFinal reportVanderark RV-10 · Sun Lakes, AZThe fatigue fractures of the upper and lower alternator attachment bolts, which decreased the common drive belt tension and resulted in the subsequent in-flight separation of an alternator drive belt, the overheating of the engine, and the subsequent total…NTSB WPR18LA006Accident · Serious injuriesClass 3 · LimitedFinal reportNanchang China CJ 6 · Buckeye, AZThe failure of the fuel pump’s diaphragm which resulted in fuel system contamination from air and or oil and caused the engine to lose power.NTSB WPR17LA141Accident · No injuriesLimited investigationFinal reportVickers Supermaine Ltd · Marana, AZThe pilot’s failure to maintain directional control of the airplane during the landing roll.NTSB WPR17LA121Accident · No injuriesLimited investigationFinal reportBob Frederick Titan T-51 · Goodyear, AZFailure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.NTSB WPR16LA088Accident · No injuriesLimited investigationFinal reportThomas D. Parkes Lancair ES · Prescott, AZA partial loss of engine power due to an over-temperature event, which thermally damaged the blade tips of the turbocharger wheel and resulted in a slowing or stoppage in the rotation of the turbocharger.NTSB GAA15LA225Accident · Serious injuriesLimited investigationFinal reportUltramagic N250 - NO Series · Peoria, AZThe pilot's failure to ensure that the passengers remained secure in the basket during deflation after landing, which resulted in a passenger falling out of the basket and sustaining a serious injury when a wind gust caught the envelope and tipped the basket…NTSB WPR15LA131Accident · Serious injuriesLimited investigationFinal reportMccurry Charles P F 1 Rocket · Sedona, AZThe partial loss of engine power during final approach for reasons that could not be determined during postaccident examination of the engine.NTSB WPR15LA130Accident · Minor injuriesLimited investigationFinal reportVans RV6A · Green Valley, AZThe total loss of engine power during initial climb due to the disconnection of both fuel pump power wires.NTSB WPR15LA052Accident · Minor injuriesLimited investigationFinal reportNanchang CJ-6 · Mesa, AZThe total loss of engine power during takeoff following a touch-and-go landing for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation.NTSB WPR14LA242Accident · No injuriesLimited investigationFinal reportAdams Dragonfly · Mesa, AZA partial loss of engine power due to a reduction in the No. 3 cylinder’s compression as a result of the exhaust valve not having consistent uniform contact with the cylinder head valve seat.NTSB WPR13LA134Accident · No injuriesLimited investigationFinal reportBlumer Challenger II Spec · Peoria, AZA cracked cooling fan housing, which led to a malfunction of the ignition system and a loss of engine power during the landing approach.NTSB WPR13LA099Accident · No injuriesLimited investigationFinal reportGoetz Helicycle · Mesa, AZThe pilot's failure to properly install and secure the wire connecting the electronic speed controller unit to the fuel controller actuator motor, which resulted in the wire’s disconnection in flight and the resultant partial loss of engine power.NTSB WPR12CA150Accident · No injuriesData collectionFinal reportArado-Flugzeugwerke FW190 A-5 · Casa Grande, AZThe pilot did not maintain directional control of the airplane during the landing roll.NTSB WPR12FA059Accident · 1 fatalField investigationFinal reportVans RV7 - A · Surprise, AZAn electrical or engine electronic problem, which resulted in a loss of engine power, followed by a low-altitude stall.NTSB WPR12CA033Accident · No injuriesData collectionFinal reportCasler Scott CX-4 · San Carlos, AZThe pilot's inadequate directional control during takeoff.NTSB WPR11FA258Accident · No injuriesField investigationFinal reportBowley Murphy · Aguila, AZA fire that originated from a fuel leak at an undetermined location in the engine compartment. Contributing to the accident was the builder's use of non-aviation hardware for engine fluid fittings and lines.NTSB WPR11CA208Accident · No injuriesData collectionFinal reportDoktor Fiberglas H101 Salto · Peoria, AZThe glider's encounter with turbulence and loss of lift, which resulted in a ditching in a lake.NTSB WPR11CA124Accident · No injuriesData collectionFinal reportCessna 182D · Quartzsite, AZThe pilot's inadequate compensation for the wind and subsequent loss of directional control, which resulted in a runway excursion and collision with a parked aircraft.NTSB WPR11LA080Accident · Serious injuriesLimited investigationFinal reportSchaefer Kitfox 4 · Glendale, AZThe pilot's failure to recognize the onset of and to prevent an aerodynamic stall at low altitude. Contributing to the accident were the manufacturer’s conflicting guidance about the power setting for takeoff and the pilot’s decision to conduct a…NTSB WPR10LA317Accident · Serious injuriesLimited investigationFinal reportWorgull Hornet · Camp Verde, AZThe in-flight separation of the exhaust clamps for an undetermined reason, which resulted in the exhaust system striking the wooden propeller.NTSB WPR10LA130Accident · Minor injuriesLimited investigationFinal reportNanchang China CJ-6A · Mesa, AZSeparation of the cylinder from the engine during cruise flight due to fatigue in the studs attaching it to the engine casing.NTSB WPR10LA039Accident · Minor injuriesLimited investigationFinal reportSauer KR-2S · Glendale, AZA loss of engine power due to fuel starvation as a result of a reduced fuel flow to the engine resulting from a misrouted fuel tank vent line, during initial climb.NTSB WPR09LA308Accident · 2 fatalLimited investigationFinal reportMayo RV-6A · Cottonwood, AZThe partial loss of engine power for undetermined reasons, and the pilot's failure to maintain an adequate airspeed, which resulted in an inadvertent stall/spin.NTSB WPR09LA263Accident · 2 fatalLimited investigationFinal reportLanham Lancair IV · Seligman, AZThe pilot's loss of airplane control during en route descent while operating in known icing conditions.NTSB WPR09CA198Accident · Minor injuriesData collectionFinal reportBetter Burn LLC/Startube Div Exec 162F · Chandler, AZThe flight instructor's inadequate supervision of the flight and delay in taking remedial action to prevent the helicopter from touching down while drifting. Contributing to the accident was the design of the skid shoes.NTSB LAX08FA122Accident · 3 fatalField investigationFinal reportCarlton M. Cadwell Lancair IV-P · Mesa, AZThe pilot's failure to maintain an adequate airspeed during climb out resulting in an aerodynamic stall/spin.NTSB LAX08LA078Accident · 1 fatalLimited investigationFinal reportJenkins RV-7A · Winslow, AZThe pilot's failure to maintain an adequate airspeed that resulted in a stall/spin.NTSB LAX08CA033Accident · Minor injuriesData collectionFinal reportSenft/Anderson/salmon C-5 · Tucson, AZa total loss of engine power due to the failure of the number 3 articulating rod.NTSB LAX07CA205Accident · Minor injuriesData collectionFinal reportSaunders Stiletto · Quartzsite, AZFuel exhaustion due to the pilot's inadequate preflight inspection during which he failed to insure security of the fuel tank's cap.NTSB LAX07LA197Accident · Minor injuriesLimited investigationFinal reportEvenson Roger J Vans RV-9A · Tucson, AZthe loss of engine power during takeoff-initial climb, which resulted from the owner/builder's improper adjustment of the supercharger waste gate valve, that resulted in the failure of the waste gate servo motor.NTSB LAX06LA270Accident · No injuriesLimited investigationFinal reportBurkhart Grob Flugzeugbau G109 · Glendale, AZThe failure and separation of one propeller blade for undetermined reasons.NTSB LAX06LA185Accident · No injuriesLimited investigationFinal reportDiamond Aircraft Industries HK 36 TTC · Payson, AZpartial loss of engine power for undetermined reasons.NTSB LAX06CA037Accident · Serious injuriesData collectionFinal reportHopkins Rutan VariViggen · Aguila, AZthe pilot's failure to maintain an adequate airspeed during landing approach, which resulted in an inadvertent stall. A contributing factor was the pilot's lack of experience in the accident airplane.