NTSB investigations: Pratt & Whitney PT6A series, AR
58 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 per year
| 1989 | 1 |
|---|---|
| 1994 | 2 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 7 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 2 |
| 2010 | 2 |
| 2011 | 2 |
| 2012 | 3 |
| 2013 | 4 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 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.\"eventStateOrRegion\" = 'AR' AND c.\"eventCountry\" = 'USA'
AND 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."eventStateOrRegion" = 'AR' AND c."eventCountry" = 'USA'
AND 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 CEN25FA197Accident · 1 fatalClass 3 · FieldPreliminary reportAir Tractor AT-502 · Grady, AROn June 6, 2025, about 1830 central daylight time, an Air Tractor AT-502 airplane, N9185F, was substantially damaged when it was involved in an accident near Grady, Arkansas. The pilot was fatally injured. The airplane was operated as a Title 14 Code of…NTSB CEN24FA179Accident · 2 fatalClass 3 · FieldFinal reportPiper PA46-500TP · Marianna, ARThe pilot’s exceedance of the airplane’s design limitations, which resulted in an in-flight breakup.NTSB CEN24LA175Accident · Serious injuriesClass 4 · LimitedFinal reportAir Tractor AT-802A · England, ARThe pilot’s failure to maintain clearance from tower guy wires while maneuvering during a low-level aerial application flight.NTSB CEN22LA335Accident · 1 fatalClass 3 · LimitedFinal reportAyres S2R-T34 · Parkin, ARThe pilot’s failure to maintain clearance from tower guy wires while maneuvering.NTSB CEN21FA270Accident · 1 fatalClass 3 · FieldFinal reportAir Tractor 502B · Paragould, ARAn inflight loss of control and subsequent impact with terrain during an aerial application flight for reasons that could not be determined based on the available evidence.NTSB CEN21LA005Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT402 · Egypt, ARThe pilot’s failure to maintain clearance from a tree limb during a low-level aerial application flight.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 CEN18FA263Accident · 1 fatalField investigationFinal reportAir Tractor AT-602 · Wheatley, ARThe pilot's failure to maintain clearance from terrain for reasons that could not be determined based on the available evidence.NTSB CEN16LA312Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-502B · Hickory Ridge, ARThe pilot's failure to maintain clearance from a transmission line while maneuvering at low altitude.NTSB CEN15IA200Incident · No injuriesIncident investigationFinal reportAir Tractor AT 402A · Brickeys, ARThe in-flight separation of the attachment hardware at the elevator control pushrod due to maintenance personnel's improper reinstallation of the attachment hardware.NTSB CEN14LA299Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT 502 · Dell, ARThe pilot’s failure to establish a proper airspeed during takeoff with the airplane near its maximum gross weight in high-density altitude and gusting crosswind conditions.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 CEN13LA568Accident · No injuriesLimited investigationFinal reportAir Tractor AT 802 · Gould, ARThe failure of a bearing in the fuel control unit, which resulted in fuel starvation and a total loss of engine power.NTSB CEN13LA414Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T41 · Coy, ARThe propeller’s uncommanded reverse thrust during the landing flare due to improper rigging of the propeller’s governor linkage.NTSB CEN13LA402Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Tillar, ARThe loss of engine throttle control during takeoff due to an unsecured cockpit throttle control pin, which resulted in a runway overrun.NTSB CEN13LA168Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502 · Forrest City, ARThe in-flight separation of the left aileron's push-pull rod and hardware. Contributing to the accident was the failure of maintenance personnel to apply proper torque to the self-locking nuts.NTSB CEN12LA323Accident · No injuriesLimited investigationFinal reportThrush S2RHG-T65 · Alicia, ARThe pilot of the Thrush did not execute a go-around prior to landing, which resulted in excessive ground speed after touchdown, and his subsequent loss of directional control, which resulted in a collision with the Air Tractor.NTSB CEN12FA312Accident · 1 fatalField investigationFinal reportAir Tractor AT-802A · Sedgwick, ARThe inability of both pilots to see and avoid the other airplane, which resulted in a midair collision. Contributing to the accident was the distraction of the Air Tractor pilot by a cellular telephone conversation during the flight.NTSB CEN12LA310Accident · No injuriesLimited investigationFinal reportAir Tractor AT-602 · Humnoke, ARThe pilot’s failure to attain the proper touchdown point, which resulted in a landing undershoot.NTSB CEN11LA404Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T34 · Athleimer, ARFailure of the first stage planetary gearset in the propeller reduction gearbox, which resulted in catastrophic engine failure. Contributing to the failure was the misrepresentation of the gearset being zero-timed by the company that sold the gearset to the…NTSB CEN11CA224Accident · Minor injuriesData collectionFinal reportAyres S2R-T34 · Swan Lake, ARAn in-flight collision with power lines following an encounter with a wind gust.NTSB CEN10LA298Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Pollard, ARA loss of engine power for undetermined reasons.NTSB CEN10CA265Accident · No injuriesData collectionFinal reportAyres S2R-R1340 · Roe, ARThe pilot's decision to take off with a tailwind, resulting in a runway overrun.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 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 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 DFW06LA198Accident · No injuriesLimited investigationFinal reportAyres S2R-T34 · Parkdale, ARThe failure of a compressor turbine blade for undetermined reasons, which resulted in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW06CA182Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Marvell, ARThe pilot's failure to maintain clearance with terrain during takeoff.NTSB DFW06LA163Accident · 1 fatalLimited investigationFinal reportAyres S2R-T34 · Colt, ARThe pilot's failure to maintain clearance with the ground during an aerial application flight.NTSB DFW06CA155Accident · No injuriesData collectionFinal reportAir Tractor AT-502 · Minturn, ARThe pilot's inadequate inflight planning/decision, which resulted in a loss of engine power due to fuel exhaustion. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW06CA146Accident · No injuriesData collectionFinal reportAir Tractor AT-802 · Tuckerman, ARThe loss of engine power due to water contamination in the fuel. A contributing factor was the lack of suitable terrain for the forced landing.NTSB DFW06CA137Accident · No injuriesData collectionFinal reportAyres S2R-T34 · Winchester, ARThe pilot's failure to abort the takeoff following the partial loss of engine power for undetermined reasons. A contributing factor was the rising embankment at the end of the runway.NTSB DFW06LA130Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · DeWitt, ARThe failure by both pilots to maintain adequate visual lookout and the Grumman G-164A pilot's impairment caused by the recent use of marijuana.NTSB DFW06CA031Accident · No injuriesData collectionFinal reportAir Tractor AT-502B · Osceola, ARThe pilot's failure to maintain control of the airplane while on final approach. A contributing factor was the gusty winds.NTSB DFW05LA179Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-502B · Hickory Ridge, ARThe pilot's failure to maintain clearance with terrain during aerial application.NTSB DFW05CA131Accident · No injuriesData collectionFinal reportAir Tractor AT-402A · Cherry Valley, ARThe pilot's failure to calculate take off-distance performance data, which resulted in insufficient runway length for take off. Factors were the tailwind and high gross weight.NTSB DFW05CA079Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Dumas, ARThe pilot's failure to maintain clearance from the power lines.NTSB FTW04LA156Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-502 · Joiner, ARThe pilot's failure to maintain clearance and altitude from terrain while maneuvering during an aerial application.NTSB FTW04LA151Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Weldon, ARThe other pilot's failure to maintain an adequate visual lookout during approach to landing, which resulted in a midair collision between the two airplanes.NTSB FTW04CA139Accident · No injuriesData collectionFinal reportAir Tractor AT-402 · Beedeville, ARThe pilot's failure to maintain directional control of the airplane during landing roll-out. Contributing factors were the crosswind and condition of the the runway.NTSB CHI03LA273Accident · Minor injuriesLimited investigationFinal reportAyres S2R-T660 · Blytheville, ARThe pilot's inadequate visual lookout and altitude/clearance not being maintained from the transmission wires. A factor to the accident was the transmission wires.NTSB FTW03LA098Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502B · Holly Grove, ARThe pilot's failure to abort the takeoff.NTSB FTW03FA059Accident · 3 fatalField investigationFinal reportBeech 1900C · Eagleton, ARIn-flight collision with terrain due to the pilot's failure to maintain clearance and altitude above rapidly rising terrain while on a VFR approach. Contributing factors were the obscuration of the terrain due to clouds.NTSB FTW02LA158Accident · No injuriesLimited investigationFinal reportAir Tractor 402 · Hughes, ARthe pilot's failure to maintain directional control during the landing roll. Contributing factors were the malfunction of the tail wheel locking mechanism and the high vegetation along the sides of the airstrip.NTSB FTW02LA116Accident · No injuriesLimited investigationFinal reportAir Tractor 502B · Palestine, ARthe pilot's failure to maintain clearance with the power line while maneuvering during an aerial application flight.NTSB FTW01LA147Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Newport, ARthe loss of control during takeoff initial climb as a result of encountering wake turbulence due to the pilot's failure to recognize the hazard and delay the takeoff.NTSB FTW01LA141Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-502B · Marvell, ARthe improper decision of the driver of the vehicle(ATV) to enter an active airstrip.NTSB FTW00LA232Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502 · Helena, ARthe pilot's failure to maintain obstacle clearance. A contributing factor was the sun glare.NTSB FTW99LA196Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Marvel, ARThe pilot's failure to attain the proper takeoff airspeed.