NTSB investigations: Pratt & Whitney PT6A series
650 cases on aircraft whose registry engine model is Pratt & Whitney PT6A series. 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, newest first
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 ('52032', '52034'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034'))
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 WPR09CA064Accident · No injuriesData collectionFinal reportAir Tractor AT-502 · Dinuba, CAThe failure of maintenance personnel to properly install the engine's Py line correctly, which resulted in the total loss of engine power and subsequent force landing. Contributing to the accident was the lack of suitable terrain.NTSB ERA09WA037Accident · 3 fatalForeign investigationBeech 65A90 · Timehri, GuyanaNTSB ERA09WA028Accident · 1 fatalClass 5 · ForeignHawker-Beechcraft 100 · Bauru, BrazilNTSB ANC09LA004Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe failure of both pilots to maintain adequate clearance/distance from each other at the taxiway intersection to avoid a collision. Contributing to the accident was a lack of clear and concise instruction to either airplane by the ground controller to…NTSB DEN08LA151Accident · No injuriesLimited investigationFinal reportBeech 1900D · St. Louis, MOThe ground crew's failure to ensure airplane clearance from the building while parking the airplane. Contributing to the accident was the flight crew's unprofessional behavior and the lack of marshaling procedures for the ground crew.NTSB DFW08CA219Accident · No injuriesData collectionFinal reportPiper PA46-500TP · St. Louis, MOThe pilot's failure to ensure that the landing gear was placed in the down position prior to landing.NTSB CHI08CA257Accident · No injuriesData collectionFinal reportAir Tractor AT-400A · Luverne, MNThe failure of the compressor turbine blades which resulted in the loss of power. Factors associated with the accident were the low altitude and the trees.NTSB DEN08IA143Incident · No injuriesIncident investigationFinal reportRaytheon C90A · Jasper, TXThe impact with a bird during initial takeoff climb.NTSB NYC08CA279Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Tunica, MSThe pilot's failure to maintain clearance from the power lines during low-altitude maneuvers.NTSB DEN08CA136Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Dexter, NMThe pilot's failure to maintain directional control of the airplane.NTSB CHI08CA217Accident · No injuriesData collectionFinal reportGrumman G-164A · Veedersburg, INThe oil filler cap not reinstalled by the pilot prior to the aerial application flight and the total loss of engine oil during an aerial application. Additional causes were the low altitude of the operation and the unsuitable terrain encountered by the pilot…NTSB CHI08CA201Accident · Minor injuriesData collectionFinal reportGrumman G-164D · Esmond, NDThe pilot's delay in advancing the throttle during the takeoff which resulted in inadequate airspeed and the subsequent stall/mush. Factors associated with the accident were the leaking hopper, the pilot continuing to operate the airplane with the known…NTSB DEN08LA125Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-402B · Deerfield, KSThe pilot inadvertently stalling the airplane. Contributing factors in this accident were the pilot intentionally performing low altitude maneuvers (side slips), unporting and starving the engine of fuel, and his initiating a climb at low airspeed.NTSB DFW08LA167Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Bethany, MOThe pilot's decision to take off with a known deficiency.NTSB MIA08CA137Accident · No injuriesData collectionFinal reportAir Tractor AT-402B · Muscle Shoals, ALThe pilot's failure to maintain clearance from utility wires during low altitude maneuvers.NTSB DFW08LA143Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-502B · Wheatley, ARThe pilot's failure to maintain airspeed, resulting in an inadvertent low-altitude aerodynamic stall.NTSB DFW08CA116Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Carlsbad, NMThe pilot's improper decision to takeoff uphill with full fuel and fuel chemical load. A factor was the pilot's failure to calculate performance data.NTSB SEA08IA096Incident · No injuriesIncident investigationFinal reportRaytheon 1900D · Page, AZThe flight crew’s unprofessional behavior and deviation from standard operating procedures which resulted in an in-flight emergency.NTSB LAX08CA091Accident · No injuriesData collectionFinal reportBeech F90 · Idaho Falls, IDthe pilot's misjudged distance and airspeed that led to a failure to attain the proper touchdown point and a runway overrun. Contributing factors were the snow and muddy conditions off the runway.NTSB SEA08LA082Accident · Serious injuriesLimited investigationFinal reportRaytheon 1900D · Kayenta, AZThe flight crew's failure to execute a missed approach, which resulted in a runway excursion after landing. Contributing to the accident were the inoperative lights, weather conditions below published approach minimums, and the slush contaminated runway.NTSB ANC08LA031Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe pilot's selection of unsuitable terrain for landing. Contributing to the accident were snow-covered terrain, blowing snow and flat lighting conditions.NTSB MIA08WA033Accident · No injuriesClass 5 · ForeignCessna 208B · Chub Cay, BahamasOn December 20, 2007, about 1630 Atlantic standard time, a Cessna 208B, N954PA, registered to and operated by Agape Flights, Inc., was ditched in the Atlantic Ocean approximately 30 nautical miles west-northwest of Chub Cay, Bahamas. The commercial-rated…NTSB ANC08LA027Accident · Serious injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe pilot's failure to adequately remove frost contamination from the airplane, which resulted in a loss of control and subsequent collision with terrain during an emergency landing after takeoff.NTSB CHI08FA045Accident · 2 fatalField investigationFinal reportCessna 208B · Columbus, OHThe pilot's failure to maintain aircraft control and collision avoidance with terrain due to spatial disorientation. Contributing to the accident were the low cloud ceiling and night conditions.NTSB MIA08LA014Accident · No injuriesLimited investigationFinal reportCessna C208B · Opa Locka, FLFailure of the local controller to coordinate with the ground controller and the failure of the pilots to see and avoid each other.NTSB DFW08CA009Accident · No injuriesData collectionFinal reportAir Tractor AT-602 · Columbia, LAThe pilot's selection of an unsuitable landing area. Contributing factors were the tall vegetation on the sides of the airstrip and the short and confined landing area.NTSB DFW08CA014Accident · No injuriesData collectionFinal reportAir Tractor 402B · Taft, TXThe pilot's failure to maintain control during takeoff. A contributing factor was the prevailing crosswind.NTSB LAX08MA007Accident · 10 fatalMajor investigationFinal reportCessna 208B · Naches, WAThe pilot's failure to maintain an adequate airspeed to avoid an aerodynamic stall while maneuvering. Contributing to the accident were the pilot's impaired physiological state due to hypoxia, the pilot's inadequate preflight weather evaluation, and his…NTSB DEN08FA003Accident · 3 fatalField investigationFinal reportRaytheon C90A · Pagosa Springs, COThe pilot's failure to maintain clearance from mountainous terrain. Contributing to the accident was the pilot's inadequate preflight planning, improper in-flight planning and decision making, the dark night, and the controller's failure to issue a safety…NTSB LAX07TA277Accident · No injuriesFinal reportAir Tractor AT-802A · Big Bear City, CALoss of engine power while maneuvering due to the failure of the number 1 bearing that was caused by electrical discharge damage to the bearing originating from the starter-generator. Contributing to the accident was the operator's failure to follow the…NTSB DFW07LA203Accident · No injuriesLimited investigationFinal reportAir Tractor AT 602 · Floydada, TXA leak in the outer ply of the BeCu bellows. This hole appeared to be the result of pitting corrosion, but the corroding agent was not determined.NTSB SEA07CA244Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Salome, AZThe pilot's inadequate compensation for the tailwind condition and failure to maintain directional control during the takeoff roll/run, which resulted in a ground loop.NTSB SEA07LA242Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Blythe, CAThe pilot's failure to maintain adequate airspeed which resulted in a stall. A contributing factor was the high density altitude.NTSB CHI07CA259Accident · No injuriesData collectionFinal reportAir Tractor AT-502 · Creston, IAThe loss of engine power due to fuel starvation as a result of the pilot's inadequate fuel calculations.NTSB ANC07FA073Accident · 4 fatalField investigationFinal reportPiper PA-46-350P · Sitka, AKThe pilot's failure to maintain altitude/distance from obstacles during an IFR circling approach, and his failure to follow the instrument approach procedure. Contributing to the accident was clouds.NTSB CHI07LA246Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Hampton, IAThe pilot's failure to maintain directional control during landing. Contributing to the accident was a ditch.NTSB DFW07LA165Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Slaton, TXAn uncontained failure of the turbine engine's power section for undetermined reasons.NTSB CHI07LA213Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-402A · Laurel, IAThe pilot failed to maintain clearance with the upsloping terrain for undetermined reasons.NTSB DEN07WA113Accident · 2 fatalForeign investigationCessna 208B · Inverin, IrelandNTSB SEA07LA204Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502A · Chowchilla, CAThe loss of engine power as the result of the fatigue fracture and separation of two compressor turbine blades, which induced a catastrophic failure of the compressor turbine section.NTSB DEN07LA101Accident · No injuriesLimited investigationFinal reportBeech 1900D · Laramie, WYThe pilot's improper decision, his misjudgment of his speed and distance, and his failure to perform a go-around resulting in the airplane overrunning the runway and striking an electrical box. Factors contributing to the accident were the failure of the crew…NTSB CHI07LA174Accident · Serious injuriesLimited investigationFinal reportAyres S2R-T15 · Stuttgart, ARThe loss of engine power for undetermined reasons during an aerial application flight and the unsuitable landing area encountered by the pilot during the subsequent forced landing. An additional cause was the low altitude of an aerial application operation.NTSB DFW07CA123Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Banquete, TXThe pilot's failure to maintain clearance from the power transmission line(s). A contributing factor was the low altitude selected by the pilot.NTSB SEA07LA133Accident · No injuriesLimited investigationFinal reportBeech B-99 · Billings, MTThe total failure of the nose landing gear actuator and the subsequent nose gear collapse during landing.NTSB CHI07LA147Accident · 1 fatalLimited investigationFinal reportThrush S2RHG-T65 · Tyndall, SDThe pilot not maintaining altitude/clearance from a powerline while maneuvering. A factor was the low visibility associated with the thunderstorm and the powerlines.NTSB DFW07CA114Accident · Minor injuriesData collectionFinal reportAir Tractor AT-402A · Edmonson, TXThe pilot's failure to maintain clearance with the crops.NTSB MIA07WA082Incident · No injuriesForeign investigationBeech 1900D · Marsh Harbour, BahamasNTSB ATL07CA051Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Collinwood, TNThe pilots improper inflight planning which resulted in a loss of engine power due to fuel exhaustion.NTSB DEN07WA060Accident · 1 fatalForeign investigationPiper PA-31T · Rieschweiler, GermanyNTSB CHI07FA068Accident · Serious injuriesField investigationFinal reportCessna 208B · Alliance, NEThe pilot's descent below minimum descent altitude while on a nonprecision approach. A contributing factor was a low ceiling.