# Fatal NTSB investigations: Pratt & Whitney Canada PT6A-34AG NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB ANC26FA054](https://openairdocs.org/ntsb/ANC26FA054.md): Air Tractor AT-502B · Forbes, MO · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 16, 2026 · N503GK · Substantial damage > On 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 CEN24FA221](https://openairdocs.org/ntsb/CEN24FA221.md): Air Tractor AT502 · Whiteface, TX · Accident · 1 fatal · Class 3 · Field · Final report · Jun 14, 2024 · N2032K · 2 aircraft · Substantial damage > Both 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 CEN23FA412](https://openairdocs.org/ntsb/CEN23FA412.md): Air Tractor AT-502B · New Rockford, ND · Accident · 1 fatal · Class 3 · Field · Final report · Sep 19, 2023 · N502NB · Substantial damage > The 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 ERA21FA257](https://openairdocs.org/ntsb/ERA21FA257.md): Air Tractor AT-402B · Kinston, NC · Accident · 1 fatal · Class 3 · Field · Final report · Jun 18, 2021 · N402SJ · Destroyed > The 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 CEN20LA306](https://openairdocs.org/ntsb/CEN20LA306.md): Air Tractor AT502 · Grant, NE · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 25, 2020 · N502KJ · Substantial damage > The 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 ERA20LA217](https://openairdocs.org/ntsb/ERA20LA217.md): Air Tractor AT502 · Atmore, AL · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 16, 2020 · N879JA · Substantial damage > The 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 CEN18FA339](https://openairdocs.org/ntsb/CEN18FA339.md): Air Tractor AT502 · Bronson, MI · Accident · 1 fatal · Field investigation · Final report · Aug 18, 2018 · N502RL · Destroyed > The 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 CEN18FA232](https://openairdocs.org/ntsb/CEN18FA232.md): Air Tractor AT 502B · Enid, OK · Accident · 1 fatal · Class 2 · Field · Final report · Jun 19, 2018 · N2063B · Destroyed > The pilot's failure to see and avoid a known obstacle (communications tower) during agricultural spraying operations. - [NTSB ERA17WA055](https://openairdocs.org/ntsb/ERA17WA055.md): Ayres S2R · Valparaiso, Chile · Accident · 1 fatal · Foreign investigation · Nov 23, 2016 · N5532G · Substantial damage > On 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 WPR16FA148](https://openairdocs.org/ntsb/WPR16FA148.md): Air Tractor AT 502B · Zamora, CA · Accident · 1 fatal · Field investigation · Final report · Jul 23, 2016 · N502WC · 2 aircraft · Substantial damage > The 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 CEN16LA154](https://openairdocs.org/ntsb/CEN16LA154.md): Air Tractor AT 502 · Kilbourne, LA · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 18, 2016 · N301LA · Destroyed > The 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 WPR15LA176](https://openairdocs.org/ntsb/WPR15LA176.md): Ayres S2R T34 · Blythe, CA · Accident · 1 fatal · Limited investigation · Final report · Jun 2, 2015 · N4018Q · Destroyed > The 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 CEN15LA222](https://openairdocs.org/ntsb/CEN15LA222.md): Air Tractor AT 502B · Basile, LA · Accident · 1 fatal · Limited investigation · Final report · May 5, 2015 · N4221G · Destroyed > The pilot’ failure to maintain adequate clearance from trees while maneuvering during an aerial application flight. - [NTSB WPR15LA048](https://openairdocs.org/ntsb/WPR15LA048.md): Air Tractor AT 502B · Somerton, AZ · Accident · 1 fatal · Limited investigation · Final report · Nov 30, 2014 · N946TR · Destroyed > A loss of airplane control for reasons that could not be determined based on available evidence. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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."highestInjuryLevel" = 'Fatal' AND 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 ``` This list as a web page: https://openairdocs.org/ntsb?engine=52251&fatal=1 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.