NTSB investigations: Pratt & Whitney PT6A series
37 cases on aircraft whose registry engine model is Pratt & Whitney PT6A series, where the defining event was Loss of control in flight. 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
| 2008 | 2 |
|---|---|
| 2009 | 5 |
| 2010 | 1 |
| 2011 | 1 |
| 2013 | 2 |
| 2014 | 5 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 2 |
| 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52032', '52034')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '240'))
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')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '240'))
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 ERA26FA011Accident · 2 fatalClass 3 · FieldPreliminary reportSocata TBM 700 · Dartmouth, MAOn October 13, 2025, at about 0815 eastern daylight time, a Socata TBM 700C2, N111RF, was substantially damaged when it was involved in an accident near Dartmouth, Massachusetts. The private pilot and the passenger were fatally injured and an automobile…NTSB CEN24LA216Accident · Serious injuriesClass 4 · LimitedFinal reportAir Tractor AT-402 · Perryton, TXThe pilot’s exceedance of the airplane’s critical angle of attack during a low-level turn, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover.NTSB CEN24LA165Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Olney, TXThe pilot’s failure to maintain directional control of the airplane during landing in gusty wind conditions.NTSB ERA22FA350Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-502 · Cheneyville, LAThe pilot’s loss of control after exceeding the airplane’s critical angle of attack for reasons that could not be determined.NTSB CEN21FA376Accident · 1 fatalClass 3 · FieldFinal reportSocata TBM 700 · Urbana, OHThe pilot’s failure to arrest the airplane’s left roll and rapid descent for reasons that could not be determined based on the available evidence.NTSB CEN20LA234Accident · Serious injuriesClass 3 · LimitedFinal reportAir Tractor AT402 · Pine Bluff, ARThe pilot’s exceedance of the airplane’s critical angle of attack, which led to an aerodynamic stall and a loss of airplane control. Contributing was a partial loss of engine power for undetermined reasons.NTSB ANC20LA015Accident · Serious injuriesClass 3 · LimitedFinal reportBeech 200 · Unalaska, AKThe pilot’s improper decision to takeoff downwind and to load the airplane beyond its allowable gross weight and center of gravity limits, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the inadequacy of the…NTSB CEN20FA001Accident · 5 fatalClass 3 · FieldFinal reportSocata TBM 700 · Lansing, MIThe pilot’s failure to maintain airspeed during final approach, which resulted in a loss of control and an aerodynamic stall at a low altitude, and his decision to operate the airplane outside of the approved weight and balance envelope.NTSB ERA19TA278Accident · No injuriesClass 3Final reportCessna 208 · Pepperell, MAThe pilot's loss of control when the airplane encountered a downdraft during landing approach, which resulted in a subsequent hard landing and gear collapse.NTSB ANC19LA031Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 208 · Bethel, AKThe pilot’s failure to maintain adequate airspeed while maneuvering during an attempted go-around, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall at low altitude. Contributing to the accident, was the…NTSB GAA19CA328Accident · Minor injuriesData collectionFinal reportAir Tractor AT502 · Monument, KSThe pilot's failure to maintain altitude due to distraction by ground equipment in the airplane’s path, which resulted in his failure to maintain clearance from crops during an agricultural application flight and resulted in a loss of airplane control.NTSB ANC19FA012Accident · 3 fatalClass 2 · FieldFinal reportBeech 200 · Kake, AKA loss of control for reasons that could not be determined based on the available information.NTSB CEN18FA201Accident · 1 fatalField investigationFinal reportAyres S2R · El Reno, OKThe pilot's failure to maintain clearance from tower guy wires while maneuvering during an aerial application flight.NTSB CEN18FA101Accident · 2 fatalField investigationFinal reportSocata TBM 700 · Evanston, WYThe pilot's loss of control due to spatial disorientation.NTSB GAA17CA360Accident · No injuriesData collectionFinal reportAir Tractor AT 502 · Portales, NMThe pilot's decision to fly the airplane under transmission lines while maneuvering at low altitude in high-density altitude conditions, which resulted in subsequent collision with terrain.NTSB GAA17CA303Accident · No injuriesData collectionFinal reportDehavilland DHC 6 · Perris, CAThe prospective pilot’s improper landing flare and the pilot’s delayed remedial action to initiate a go-around, which resulted in a runway excursion.NTSB GAA17CA285Accident · Minor injuriesData collectionFinal reportAir Tractor AT 802 · Dumas, TXThe pilot’s failure to maintain lateral control while maneuvering at a low altitude.NTSB GAA17CA191Accident · Minor injuriesClass 4 · Data collectionFinal reportCessna 208 · Kalaupapa, HIThe pilot's attempted aborted landing late in the landing sequence because she saw another airplane on the runway facing her with its propeller turning, which resulted in a hard landing, a subsequent loss of directional control, and ground loop.NTSB CEN16FA158Accident · 2 fatalField investigationFinal reportBeech 65 A90 1 · Slidell, LAThe unstable approach in black-hole conditions, resulting in the airplane overshooting the runway extended centerline and descending well below a safe glidepath for the runway. Contributing to the accident was the lack of monitoring by the copilot allowing…NTSB CEN16LA139Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-402 · Beyersville, TXThe pilot's failure to maintain visual separation from the power line due to a lack of identifiable and contrasting features, which led to an inflight collision with the line while maneuvering in gray, hazy conditions.NTSB CEN15FA135Accident · 1 fatalField investigationFinal reportPiper PA46 500TP · Lubbock, TXThe pilot's loss of airplane control due to spatial disorientation and light ice accumulation while operating in night, instrument meteorological conditions with gusting wind.NTSB ERA14FA399Accident · 1 fatalField investigationFinal reportAir Tractor AT-802A · Parsons, TNThe pilot’s failure to see and avoid trees during a low-level aerial application operation.NTSB ERA14FA288Accident · 1 fatalField investigationFinal reportPiper PA-46-500TP · White Plains, NYThe pilot's failure to maintain a positive climb rate after takeoff due to spatial disorientation (somatogravic illusion). Contributing to the accident was the pilot's self-induced pressure to depart and his decision to depart in low-ceiling and…NTSB CEN14CA283Accident · No injuriesData collectionFinal reportAyres S2R T34 · Wilmont, ARPilot's failure to verify the amount of chemical load on the airplane prior to takeoff which resulted in the airplane being heavier than expected. Contributing to the accident was loading crew not following the pilot's instructions.NTSB ANC14FA022Accident · 2 fatalField investigationFinal reportCessna 208B · Kwethluk, AKThe check airman's delayed remedial action and initiation of a recovery procedure after a simulated pitch trim excursion, which resulted in a loss of airplane control.NTSB CEN14FA167Accident · 5 fatalField investigationFinal reportSocata TBM 700 · Ridgway, COThe pilot's loss of airplane control during an instrument approach procedure, which resulted in the airplane exceeding its critical angle of attack and entering an inadvertent aerodynamic stall and spin.NTSB ERA13FA168Accident · 3 fatalField investigationFinal reportPiper PA-31T · Fort Lauderdale, FLThe pilot's failure to maintain airplane control following an emergency, the nature of which could not be determined because of crash and fire damage, which resulted in an aerodynamic stall.NTSB CEN13FA131Accident · 3 fatalField investigationFinal reportPiper PA46-500TP · Paris, TXThe pilot's encounter with convective weather, which resulted in a loss of airplane control.NTSB ERA11FA183Accident · 2 fatalField investigationFinal reportDehavilland DHC-6-100 · Hampton, GAThe pilot did not maintain airspeed while maneuvering, which resulted in an aerodynamic stall.NTSB CEN10FA119Accident · 1 fatalField investigationFinal reportPiper PA-31T · Forest City, IAThe pilot's failure to maintain airplane control during final approach.NTSB WPR09LA451Accident · No injuriesLimited investigationFinal reportRaytheon B200 · Hayward, CAThe pilot's failure to maintain directional control after takeoff. Contributing to the accident was the pilot's inadequate preflight and failure to follow the airplane manufacturer's checklist to ensure that the rudder trim control and right propeller control…NTSB CEN09CA533Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Whittemore, IAThe pilot's lack of preflight planning and remedial action with resulted in the airplane's inability to climb out of ground effect.NTSB CEN09CA428Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Reydell, ARThe pilot's inability to maintain control of the airplane when it unexpectedly encountered a whirlwind shortly after takeoff.NTSB CEN09CA361Accident · No injuriesData collectionFinal reportAir Tractor AT-402A · Trumann, ARThe pilot's failure to maintain aircraft control in flight. Contributing to the accident was his decision to fly with known hazardous weather conditions in the vicinity.NTSB CEN09FA126Accident · 2 fatalField investigationFinal reportPilatus PC-12/45 · Hayden, COThe pilot's loss of control due to snow/ice contamination on the airplane's lifting surfaces as a result of his decision not to deice the airplane before departure.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 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.