# NTSB investigations: Pratt & Whitney Canada PT6A-60A: Loss of control in flight 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 WPR25FA240](https://openairdocs.org/ntsb/WPR25FA240.md): Beech 300 · Chinle, AZ · Accident · 4 fatal · Class 3 · Field · Preliminary report · Aug 5, 2025 · N534AW · Destroyed > On August 5, 2025, about 1245 mountain daylight time, a Beech 300, N534AW, was destroyed when it was involved in an accident near Chinle, Arizona. The pilot, co-pilot and two medical crew members were fatally injured. The airplane was operated as a Title 14… - [NTSB CEN25LA200](https://openairdocs.org/ntsb/CEN25LA200.md): Air Tractor AT-502 · Gibson, AR · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 5, 2025 · N45113 · Substantial damage > The pilot’s loss of control during takeoff due to an encounter with a sudden wind shift. - [NTSB ERA24FA097](https://openairdocs.org/ntsb/ERA24FA097.md): Beech C99 · Londonderry, NH · Accident · Serious injuries · Class 3 · Field · Final report · Jan 26, 2024 · N53RP · Substantial damage > The pilot’s failure to ensure that the cockpit door was secured before flight, which resulted in its separation during initial climb and a subsequent loss of control. - [NTSB CEN23LA363](https://openairdocs.org/ntsb/CEN23LA363.md): Beech C-99 · Lansing, MI · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 15, 2023 · N261SW · Substantial damage > The pilot’s failure to properly set the rudder trim position which resulted in a loss of directional control during takeoff. Contributing was the pilot’s inadequate checklist procedures prior to takeoff. - [NTSB CEN23FA113](https://openairdocs.org/ntsb/CEN23FA113.md): Beech B200 · Little Rock, AR · Accident · 5 fatal · Class 3 · Field · Final report · Feb 22, 2023 · N55PC · Destroyed > The loss of control during initial climb for undetermined reasons. Contributing to the accident were the sudden wind shifts during the initial climb. - [NTSB ANC21LA073](https://openairdocs.org/ntsb/ANC21LA073.md): Cessna 208 · Fairbanks, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 16, 2021 · N97HA · Substantial damage > The pilot’s unexpected encounter with supercooled liquid droplets (SLD), which resulted in a loss of control due to ice accumulation. Contributing to the accident were: (1) the pilot’s failure to maintain the minimum airspeed for flight in icing conditions,… - [NTSB CEN18LA270](https://openairdocs.org/ntsb/CEN18LA270.md): Air Tractor AT 602 · Bismarck, IL · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 13, 2018 · N629LA · Substantial damage > A loss of control for reasons that could not be determined based on the available information. - [NTSB WPR18FA045](https://openairdocs.org/ntsb/WPR18FA045.md): Beech C90 · Geneva, FL · Accident · 3 fatal · Field investigation · Final report · Dec 8, 2017 · N19LW · Destroyed > The pilot's loss of airplane control due to spatial disorientation during an instrument approach in instrument meteorological conditions, and the flight instructor's delayed remedial action. Contributing to the accident was the flight instructor's impairment… - [NTSB WPR17FA057](https://openairdocs.org/ntsb/WPR17FA057.md): Beech 300 · Tucson, AZ · Accident · 2 fatal · Field investigation · Final report · Jan 23, 2017 · N385KA · Destroyed > The pilot's exceedance of the airplane's critical angle of attack during takeoff, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's impairment by the effects of a combination of psychoactive substances. - [NTSB CEN16LA208](https://openairdocs.org/ntsb/CEN16LA208.md): Air Tractor AT-502 · Ropesville, TX · Accident · Serious injuries · Limited investigation · Final report · Jun 6, 2016 · N10325 · Destroyed > The pilot's failure to maintain airspeed and his exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall while maneuvering. - [NTSB ERA14FA322](https://openairdocs.org/ntsb/ERA14FA322.md): Air Tractor AT-602 · Clarksdale, MS · Accident · 1 fatal · Field investigation · Final report · Jul 1, 2014 · N91331 · Destroyed > The pilot's failure to maintain adequate airspeed during a low-level, high angle-of-bank turn, which resulted in an exceedance of the critical angle of attack and a subsequent accelerated stall. - [NTSB WPR13FA115](https://openairdocs.org/ntsb/WPR13FA115.md): Beech E90 · Casa Grande, AZ · Accident · 2 fatal · Field investigation · Final report · Feb 6, 2013 · N555FV · Destroyed > The pilot’s loss of control of the airplane after pitching it excessively nose up during a go-around, which resulted in a subsequent aerodynamic stall/spin. - [NTSB CEN12LA095](https://openairdocs.org/ntsb/CEN12LA095.md): Beech F90 · Midland, TX · Accident · Serious injuries · Limited investigation · Final report · Dec 2, 2011 · N90QL · Destroyed > The pilot's failure to maintain the recommended airspeed for icing conditions and his subsequent loss of airplane control while flying the airplane under autopilot control in severe icing conditions, contrary to the airplane's handbook. Contributing to the… - [NTSB CEN10FA063](https://openairdocs.org/ntsb/CEN10FA063.md): Piper PA-31T2 · Harrison, MI · Accident · 1 fatal · Field investigation · Final report · Dec 4, 2009 · N85EM · Destroyed > A loss of aircraft control for undetermined reasons. ## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52043', '51999') 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 ``` This list as a web page: https://openairdocs.org/ntsb-events/240/cases?engine=52043 --- 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.