NTSB investigations: Pratt & Whitney Canada PT6A-34AG
48 cases on aircraft whose registry engine model is Pratt & Whitney Canada PT6A-34AG. 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
| 2005 | 1 |
|---|---|
| 2009 | 1 |
| 2011 | 1 |
| 2013 | 3 |
| 2014 | 4 |
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 4 |
| 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52251'))
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 ('52251'))
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 WPR26LA249Accident · No injuriesClass 3 · LimitedPreliminary reportAir Tractor AT-502B · Ogden, UTOn July 7, 2026, about 1259 mountain daylight time, an Air Tractor, Inc. AT-502B airplane, N647LA, was substantially damaged when it was involved in an accident near Ogden, Utah. The commercial pilot was not injured. The flight was conducted as a Title 14…NTSB ANC26FA054Accident · 1 fatalClass 3 · FieldPreliminary reportAir Tractor AT-502B · Forbes, MOOn June 15, 2026, about 2015 Central daylight time, an Air Tractor AT-502B airplane, N503GK, sustained substantial damage when it was involved in an accident near Forbes, Missouri. The pilot was fatally injured. The airplane was operated as a Title 14 Code of…NTSB CEN25LA274Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT502 · Hastings, NEThe pilot’s failure to maintain clearance from powerlines while maneuvering at low altitude.NTSB CEN25LA267Accident · Minor injuriesClass 4 · LimitedFinal reportAir Tractor AT-402B · Wyoming, ILThe pilot’s failure to attain a positive climb rate due to airplane’s improper takeoff configuration.NTSB CEN25LA221Accident · Serious injuriesClass 4 · LimitedFinal reportAir Tractor AT-402B · Pierre, SDThe pilot’s failure to maintain clearance with the power lines while maneuvering that resulted in an in-flight collision with the power lines and impact with terrain.NTSB CEN25LA219Accident · Minor injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Charleston, MOThe pilot’s loss of control during the spray pass, which resulted in impact with vegetation and terrain.NTSB GAA25WA281Accident · Serious injuriesClass 4 · ForeignAir Tractor AT-504 · Gizan, Saudi ArabiaNTSB WPR25LA011Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT502 · Corcoran, CAA total loss of engine power due to the pilot's improper manipulation of the condition lever during flight, which resulted in fuel starvation and a forced landing.NTSB CEN24FA221Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT502 · Whiteface, TXBoth pilot’s failure to see and avoid the other airplane during simultaneous aerial application operations over the same area. Contributing to the accident was the operator’s poor decision to assign the pilots to conduct separate aerial application operations…NTSB CEN23FA412Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-502B · New Rockford, NDThe pilot’s failure to maintain clearance from overhead power lines during an aerial application flight. Contributing to the accident was the pilot’s decision to fly under the power lines with a small area of clearance available for the airplane.NTSB CEN23LA223Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-502B · Lake Village, ARA reported loss of thrust for reasons that could not be determined.NTSB CEN22LA312Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-502B · Decatur, ILFracture of the compressor turbine (CT) blades due to creep.NTSB CEN21LA362Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-502B · Topeka, KSThe pilot’s decision to continue low-level aerial application flight maneuvers after the low fuel warning light illuminated, which resulted in a partial loss of engine power due to fuel exhaustion.NTSB CEN21LA322Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT502 · Edcouch, TXThe pilot’s inadequate compensation for a gusting wind during takeoff.NTSB ERA21FA257Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor AT-402B · Kinston, NCThe pilot’s decision to conduct low-level aerobatic maneuvers in an airplane not approved for aerobatic flight, which resulted in an aerodynamic stall and spin, a loss of control, and an impact with terrain.NTSB CEN20LA306Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT502 · Grant, NEThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering during an agricultural flight, which resulted in an aerodynamic stall and a loss of control at too low of an altitude to recover. Contributing to the accident was the pilot’s…NTSB ERA20CA253Accident · No injuriesClass 4 · Data collectionFinal reportAir Tractor AT502 · Washington, NCThe pilot's failure to maintain directional during landing on a wet grass runway.NTSB ERA20CA231Accident · No injuriesClass 4 · Data collectionFinal reportAir Tractor AT502 · South Bay, FLThe pilot's loss of airplane control during the approach, which resulted in an aerodynamic stall and impact with vegetation and terrain.NTSB ERA20LA217Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT502 · Atmore, ALThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall, spin, and loss of control.NTSB CEN20CA079Accident · No injuriesData collectionFinal reportAir Tractor AT-504 · Fort Morgan, COThe pilot's improper landing flare, which resulted in a bounced landing, and his subsequent failure to maintain directional control, which resulted in the left main landing gear tire bursting and the tailwheel assembly failing.NTSB GAA19CA502Accident · No injuriesData collectionFinal reportAir Tractor AT502 · Onida, SDThe pilot's failure to maintain clearance from power wires during agricultural application operations.NTSB GAA19CA480Accident · No injuriesData collectionFinal reportAir Tractor AT502 · Waco, NEThe pilot's failure to maintain clearance from wires during an agricultural application flight.NTSB GAA19CA339Accident · No injuriesData collectionFinal reportAir Tractor AT502 · San Benito, TXThe pilot's improper decision to take off with the airplane near its maximum allowable gross takeoff weight and his subsequent exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall.NTSB CEN18FA339Accident · 1 fatalField investigationFinal reportAir Tractor AT502 · Bronson, MIThe pilot's failure to maintain airspeed while maneuvering, which resulted in exceedance of the airplane's critical angle of attack, an aerodynamic stall, and loss of control at an altitude too low for recovery.NTSB CEN18FA232Accident · 1 fatalClass 2 · FieldFinal reportAir Tractor AT 502B · Enid, OKThe pilot's failure to see and avoid a known obstacle (communications tower) during agricultural spraying operations.NTSB GAA18CA010Accident · No injuriesData collectionFinal reportAir Tractor AT 402B · Brawley, CAThe pilot’s failure to maintain directional control during landing in gusting crosswind conditions.NTSB CEN17CA294Accident · Minor injuriesData collectionFinal reportAir Tractor AT 502B · Harrold, SDThe pilot’s improper attempt at a low-pass maneuver, which resulted in a collision with a tractor.NTSB CEN17LA176Accident · No injuriesLimited investigationFinal reportThrush S2R-H80 · Gypsum, KSA total loss of engine power during a low-altitude agricultural application flight for reasons that could not be determined during detailed examinations. Contributing to the accident was the pilot’s failure to follow the airplane manufacturer's emergency…NTSB ERA17WA055Accident · 1 fatalForeign investigationAyres S2R · Valparaiso, ChileOn November 23, 2016, about 1410 universal coordinated time, an Ayres S2-R, United States registration N5532G, was destroyed when it impacted mountainous terrain near Paso Internacional Los Libertadores, Chile. The pilot was fatally injured. The flight…NTSB GAA17CA030Accident · Minor injuriesData collectionFinal reportAir Tractor AT 502 · Paragould, ARThe pilot's failure to avoid electrical wires during low-altitude maneuvering, which resulted in a wire strike.NTSB WPR16FA148Accident · 1 fatalField investigationFinal reportAir Tractor AT 502B · Zamora, CAThe failure of both pilots to maintain an adequate visual lookout, which resulted in a midair collision. Also causal was the other pilot's use of two sedating antihistamines and two impairing medication and the effect of sun glare on his visual lookout, which…NTSB CEN16LA154Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT 502 · Kilbourne, LAThe failure of the operator to comply with the terminating action of the airworthiness directive, which resulted in the subsequent failure and separation of the vertical stabilizer due to fatigue.NTSB CEN15LA335Accident · No injuriesLimited investigationFinal reportAir Tractor AT 502B · Virden, ILThe pilot’s failure to establish a proper airspeed during takeoff with the airplane near its maximum gross weight and with a quartering tailwind.NTSB GAA15CA152Accident · No injuriesData collectionFinal reportAir Tractor AT 502B · Edna, TXThe pilot's failure to maintain directional control during the takeoff roll, resulting in a runway excursion, and collision with a fence.NTSB WPR15LA176Accident · 1 fatalLimited investigationFinal reportAyres S2R T34 · Blythe, CAThe pilot's failure to maintain adequate airspeed while maneuvering, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall.NTSB GAA15LA101Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT 502B · Archer City, TXThe pilot’s failure to maintain adequate clearance from power transmission lines during an aerial application flight.NTSB CEN15LA226Accident · No injuriesLimited investigationFinal reportAir Tractor AT 502B · Dighton, KSThe pilot's failure to follow the Preflight checklist and his inadequate preflight inspection, during which he failed to detect the water contamination of the fuel, which resulted in a partial loss of engine power during initial climb.NTSB CEN15LA222Accident · 1 fatalLimited investigationFinal reportAir Tractor AT 502B · Basile, LAThe pilot’ failure to maintain adequate clearance from trees while maneuvering during an aerial application flight.NTSB WPR15LA048Accident · 1 fatalLimited investigationFinal reportAir Tractor AT 502B · Somerton, AZA loss of airplane control for reasons that could not be determined based on available evidence.NTSB CEN14CA464Accident · No injuriesData collectionFinal reportAir Tractor AT 502B · Colusa, ILThe pilot did not maintain control of the airplane during takeoff from a grass strip. Contributing was the airplane being loaded beyond its capability for the runway.NTSB CEN14CA429Accident · No injuriesData collectionFinal reportAir Tractor AT 502B · Minden, NEThe pilot's inadequate survey of the aerial application field which resulted in a collision with a windmill.NTSB CEN14CA341Accident · Minor injuriesData collectionFinal reportAir Tractor AT 402B · Sudan, TXThe pilot's lapse in monitoring the airplane's speed during a low level aerial application maneuver and its subsequent stall during the maneuver.NTSB WPR14CA003Accident · No injuriesData collectionFinal reportAir Tractor AT 402B · Wellton, AZThe pilot’s distracted attention and failure to maintain sufficient altitude to clear terrain while maneuvering in dark night conditions.NTSB CEN13LA391Accident · No injuriesLimited investigationFinal reportAir Tractor AT-402B · Ipswich, SDThe pilot’s failure to obtain adequate airspeed during the takeoff roll, which resulted in an aerodynamic stall.NTSB CEN13LA384Accident · No injuriesLimited investigationFinal reportAyres S2R-T34 · Heth, ARThe partial collapse of the right main landing gear during landing due to an improper previous weld repair to the right main landing gear and subsequent corrosion, which resulted in a loss of directional control and impact with terrain.NTSB CEN11LA487Accident · No injuriesLimited investigationFinal reportAyres S2R · Burlington, COA loss of engine power for undetermined reasons.NTSB CEN09CA194Accident · Minor injuriesData collectionFinal reportAir Tractor AT-502B · Harrold, SDThe pilot's failure to maintain clearance from the power lines during his turn to reverse course due to weather. Contributing to the accident was the reduced visibility at the time of the accident.NTSB DFW05LA182Accident · No injuriesLimited investigationFinal reportAyres S2R-T34 · Bonita, LAThe failure of the pilot to maintain adequate visual lookout, which resulted in a midair collision.