# NTSB investigations: Pratt & Whitney PT6A series: 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 ERA26FA011](https://openairdocs.org/ntsb/ERA26FA011.md): Socata TBM 700 · Dartmouth, MA · Accident · 2 fatal · Class 3 · Field · Preliminary report · Oct 13, 2025 · N111RF · Substantial damage
  > On 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 CEN24LA216](https://openairdocs.org/ntsb/CEN24LA216.md): Air Tractor AT-402 · Perryton, TX · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 6, 2024 · N45123 · Destroyed
  > The 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 CEN24LA165](https://openairdocs.org/ntsb/CEN24LA165.md): Air Tractor AT-502B · Olney, TX · Accident · No injuries · Class 4 · Limited · Final report · Apr 24, 2024 · N6108L · Substantial damage
  > The pilot’s failure to maintain directional control of the airplane during landing in gusty wind conditions.
- [NTSB ERA22FA350](https://openairdocs.org/ntsb/ERA22FA350.md): Air Tractor AT-502 · Cheneyville, LA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 2, 2022 · N9184Q · Substantial damage
  > The pilot’s loss of control after exceeding the airplane’s critical angle of attack for reasons that could not be determined.
- [NTSB CEN21FA376](https://openairdocs.org/ntsb/CEN21FA376.md): Socata TBM 700 · Urbana, OH · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N700DT · Destroyed
  > The 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 CEN20LA234](https://openairdocs.org/ntsb/CEN20LA234.md): Air Tractor AT402 · Pine Bluff, AR · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 17, 2020 · N1532H · Substantial damage
  > The 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 ANC20LA015](https://openairdocs.org/ntsb/ANC20LA015.md): Beech 200 · Unalaska, AK · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 16, 2020 · N547LM · Substantial damage
  > The 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 CEN20FA001](https://openairdocs.org/ntsb/CEN20FA001.md): Socata TBM 700 · Lansing, MI · Accident · 5 fatal · Class 3 · Field · Final report · Oct 3, 2019 · N700AQ · Substantial damage
  > The 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 ERA19TA278](https://openairdocs.org/ntsb/ERA19TA278.md): Cessna 208 · Pepperell, MA · Accident · No injuries · Class 3 · Final report · Sep 20, 2019 · N895SF · Substantial damage
  > The 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 ANC19LA031](https://openairdocs.org/ntsb/ANC19LA031.md): Cessna 208 · Bethel, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 8, 2019 · N9448B · Destroyed
  > The 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 GAA19CA328](https://openairdocs.org/ntsb/GAA19CA328.md): Air Tractor AT502 · Monument, KS · Accident · Minor injuries · Data collection · Final report · Jun 7, 2019 · N60642 · Substantial damage
  > The 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 ANC19FA012](https://openairdocs.org/ntsb/ANC19FA012.md): Beech 200 · Kake, AK · Accident · 3 fatal · Class 2 · Field · Final report · Jan 30, 2019 · N13LY · Destroyed
  > A loss of control for reasons that could not be determined based on the available information.
- [NTSB CEN18FA201](https://openairdocs.org/ntsb/CEN18FA201.md): Ayres S2R · El Reno, OK · Accident · 1 fatal · Field investigation · Final report · May 30, 2018 · N2249B · Destroyed
  > The pilot's failure to maintain clearance from tower guy wires while maneuvering during an aerial application flight.
- [NTSB CEN18FA101](https://openairdocs.org/ntsb/CEN18FA101.md): Socata TBM 700 · Evanston, WY · Accident · 2 fatal · Field investigation · Final report · Feb 18, 2018 · N700VX · Destroyed
  > The pilot's loss of control due to spatial disorientation.
- [NTSB GAA17CA360](https://openairdocs.org/ntsb/GAA17CA360.md): Air Tractor AT 502 · Portales, NM · Accident · No injuries · Data collection · Final report · Jun 22, 2017 · N700LA · Destroyed
  > The 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 GAA17CA303](https://openairdocs.org/ntsb/GAA17CA303.md): Dehavilland DHC 6 · Perris, CA · Accident · No injuries · Data collection · Final report · May 24, 2017 · N708PV · Substantial damage
  > The 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 GAA17CA285](https://openairdocs.org/ntsb/GAA17CA285.md): Air Tractor AT 802 · Dumas, TX · Accident · Minor injuries · Data collection · Final report · May 15, 2017 · N319BM · Substantial damage
  > The pilot’s failure to maintain lateral control while maneuvering at a low altitude.
- [NTSB GAA17CA191](https://openairdocs.org/ntsb/GAA17CA191.md): Cessna 208 · Kalaupapa, HI · Accident · Minor injuries · Class 4 · Data collection · Final report · Mar 11, 2017 · N865MA · Substantial damage
  > The 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 CEN16FA158](https://openairdocs.org/ntsb/CEN16FA158.md): Beech 65 A90 1 · Slidell, LA · Accident · 2 fatal · Field investigation · Final report · Apr 20, 2016 · N7MC · Destroyed
  > The 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 CEN16LA139](https://openairdocs.org/ntsb/CEN16LA139.md): Air Tractor AT-402 · Beyersville, TX · Accident · Serious injuries · Limited investigation · Final report · Mar 29, 2016 · N4555E · Substantial damage
  > The 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 CEN15FA135](https://openairdocs.org/ntsb/CEN15FA135.md): Piper PA46 500TP · Lubbock, TX · Accident · 1 fatal · Field investigation · Final report · Feb 5, 2015 · N301D · Destroyed
  > The 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 ERA14FA399](https://openairdocs.org/ntsb/ERA14FA399.md): Air Tractor AT-802A · Parsons, TN · Accident · 1 fatal · Field investigation · Final report · Aug 20, 2014 · N802BB · Substantial damage
  > The pilot’s failure to see and avoid trees during a low-level aerial application operation.
- [NTSB ERA14FA288](https://openairdocs.org/ntsb/ERA14FA288.md): Piper PA-46-500TP · White Plains, NY · Accident · 1 fatal · Field investigation · Final report · Jun 13, 2014 · N5335R · Destroyed
  > The 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 CEN14CA283](https://openairdocs.org/ntsb/CEN14CA283.md): Ayres S2R T34 · Wilmont, AR · Accident · No injuries · Data collection · Final report · Jun 7, 2014 · N23034 · Substantial damage
  > Pilot'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 ANC14FA022](https://openairdocs.org/ntsb/ANC14FA022.md): Cessna 208B · Kwethluk, AK · Accident · 2 fatal · Field investigation · Final report · Apr 8, 2014 · N126AR · Destroyed
  > The 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 CEN14FA167](https://openairdocs.org/ntsb/CEN14FA167.md): Socata TBM 700 · Ridgway, CO · Accident · 5 fatal · Field investigation · Final report · Mar 22, 2014 · N702H · Substantial damage
  > The 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 ERA13FA168](https://openairdocs.org/ntsb/ERA13FA168.md): Piper PA-31T · Fort Lauderdale, FL · Accident · 3 fatal · Field investigation · Final report · Mar 15, 2013 · N63CA · Destroyed
  > The 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 CEN13FA131](https://openairdocs.org/ntsb/CEN13FA131.md): Piper PA46-500TP · Paris, TX · Accident · 3 fatal · Field investigation · Final report · Jan 12, 2013 · N5339V · Destroyed
  > The pilot's encounter with convective weather, which resulted in a loss of airplane control.
- [NTSB ERA11FA183](https://openairdocs.org/ntsb/ERA11FA183.md): Dehavilland DHC-6-100 · Hampton, GA · Accident · 2 fatal · Field investigation · Final report · Mar 8, 2011 · N157KM · Substantial damage
  > The pilot did not maintain airspeed while maneuvering, which resulted in an aerodynamic stall.
- [NTSB CEN10FA119](https://openairdocs.org/ntsb/CEN10FA119.md): Piper PA-31T · Forest City, IA · Accident · 1 fatal · Field investigation · Final report · Feb 12, 2010 · N250TT · Substantial damage
  > The pilot's failure to maintain airplane control during final approach.
- [NTSB WPR09LA451](https://openairdocs.org/ntsb/WPR09LA451.md): Raytheon B200 · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Sep 16, 2009 · N726CB · Substantial damage
  > The 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 CEN09CA533](https://openairdocs.org/ntsb/CEN09CA533.md): Air Tractor AT-502B · Whittemore, IA · Accident · No injuries · Data collection · Final report · Aug 17, 2009 · N5003C · Substantial damage
  > The pilot's lack of preflight planning and remedial action with resulted in the airplane's inability to climb out of ground effect.
- [NTSB CEN09CA428](https://openairdocs.org/ntsb/CEN09CA428.md): Air Tractor AT-502B · Reydell, AR · Accident · No injuries · Data collection · Final report · Jul 10, 2009 · N60023 · Substantial damage
  > The pilot's inability to maintain control of the airplane when it unexpectedly encountered a whirlwind shortly after takeoff.
- [NTSB CEN09CA361](https://openairdocs.org/ntsb/CEN09CA361.md): Air Tractor AT-402A · Trumann, AR · Accident · No injuries · Data collection · Final report · Jun 12, 2009 · N50956 · Substantial damage
  > The 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 CEN09FA126](https://openairdocs.org/ntsb/CEN09FA126.md): Pilatus PC-12/45 · Hayden, CO · Accident · 2 fatal · Field investigation · Final report · Jan 11, 2009 · N604WP · Destroyed
  > The 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 CHI08CA201](https://openairdocs.org/ntsb/CHI08CA201.md): Grumman G-164D · Esmond, ND · Accident · Minor injuries · Data collection · Final report · Jul 21, 2008 · N996QC · Substantial damage
  > The 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 DFW08CA116](https://openairdocs.org/ntsb/DFW08CA116.md): Air Tractor AT-402 · Carlsbad, NM · Accident · No injuries · Data collection · Final report · Apr 25, 2008 · N402SK · Substantial damage
  > The 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.

## 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 ('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
```

This list as a web page: https://openairdocs.org/ntsb-events/240/cases?engine=52032

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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.