# NTSB investigations: Pratt & Whitney PT6A series

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.

Page 2 of 13 · 650 cases

## Cases, newest first

- [NTSB CEN22LA371](https://openairdocs.org/ntsb/CEN22LA371.md): Ayres S2R-T65 · Wyman / Washington, IA · Accident · No injuries · Class 4 · Limited · Final report · Jul 21, 2022 · N9899 · Substantial damage
  > The pilot not maintaining sufficient altitude to clear an obstruction during the aerial application flight.
- [NTSB CEN22LA342](https://openairdocs.org/ntsb/CEN22LA342.md): Air Tractor AT-502 · East Grand Forks, MN · Accident · No injuries · Class 4 · Limited · Final report · Jul 21, 2022 · N1540S · Substantial damage
  > The pilot’s failure to maintain clearance from the power lines during a low-level application pass.
- [NTSB CEN22LA310](https://openairdocs.org/ntsb/CEN22LA310.md): Air Tractor AT-502B · Wyoming, IL · Accident · No injuries · Class 4 · Limited · Final report · Jul 10, 2022 · N205SK · Substantial damage
  > The pilot’s improper landing flare, which resulted in a hard, bounced landing.
- [NTSB ERA22LA302](https://openairdocs.org/ntsb/ERA22LA302.md): Air Tractor AT-502B · Center Cross, VA · Accident · No injuries · Class 3 · Limited · Final report · Jul 8, 2022 · N50075 · Substantial damage
  > A loss of engine power for reasons that could not be determined.
- [NTSB WPR22FA197](https://openairdocs.org/ntsb/WPR22FA197.md): Cessna 208B · Oceanside, CA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 3, 2022 · N7581F · Substantial damage
  > The right-seated pilot’s failure to correct the left-seated pilot’s mismanagement of the engine thrust, which resulted in undesired speed and thrust oscillations during the final approach and a subsequent descent into terrain.
- [NTSB WPR21LA368](https://openairdocs.org/ntsb/WPR21LA368.md): Air Tractor AT-602 · Sacramento, CA · Accident · No injuries · Class 4 · Limited · Final report · May 21, 2022 · N8521V · Substantial damage
  > The pilot's inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.
- [NTSB GAA22WA137](https://openairdocs.org/ntsb/GAA22WA137.md): Beech C90A · Temixco, Mexico · Accident · 3 fatal · Class 5 · Foreign · Mar 30, 2022 · N426EM · Substantial damage
- [NTSB CEN22LA149](https://openairdocs.org/ntsb/CEN22LA149.md): Cessna 208B · Grapevine, TX · Accident · No injuries · Class 4 · Limited · Final report · Mar 18, 2022 · N78SA · 2 aircraft · Substantial damage
  > The failure of the pilot of the second aircraft to maintain a safe distance from the lead airplane while taxiing, which resulted in a ground collision.
- [NTSB CEN22LA138](https://openairdocs.org/ntsb/CEN22LA138.md): Beech 200 · Gulfport, MS · Accident · No injuries · Class 3 · Limited · Final report · Mar 7, 2022 · N8170J · Substantial damage
  > The failure of the right main landing gear actuator, which led to a gear-up landing.
- [NTSB CEN22FA081](https://openairdocs.org/ntsb/CEN22FA081.md): Cessna 208 · Fulshear, TX · Accident · 2 fatal · Class 3 · Field · Final report · Dec 21, 2021 · N1116N · 2 aircraft · Destroyed
  > The limitations of the see-and-avoid concept as a method for self-separation of aircraft, which resulted in an inflight collision. Contributing to the accident was the absence of collision avoidance technology on both aircraft.
- [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 WPR21LA313](https://openairdocs.org/ntsb/WPR21LA313.md): Cessna 425 · Helena, MT · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N783MB · Substantial damage
  > A flameout of both engines due to fuel starvation for reasons that could not be determined due to the airplane’s damage.
- [NTSB WPR21LA310](https://openairdocs.org/ntsb/WPR21LA310.md): Air Tractor AT-802A · Fort Sumner, NM · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 30, 2021 · N9197F · Destroyed
  > The pilot's failure to maintain adequate clearance from a windmill while maneuvering during an aerial application flight.
- [NTSB ERA21LA287](https://openairdocs.org/ntsb/ERA21LA287.md): Piper PA46-500TP · Manteo, NC · Accident · No injuries · Class 3 · Limited · Final report · Jul 6, 2021 · N31062 · Substantial damage
  > The improperly secured pneumatic compressor discharge air (P3) line coupling nut on the engine, which ultimately allowed the nut to back off resulting in a partial loss of engine power.
- [NTSB CEN21LA286](https://openairdocs.org/ntsb/CEN21LA286.md): Ayres S2R-T34 · Leoti, KS · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 21, 2021 · N4328P · Substantial damage
  > The pilot’s loss of visibility in the cockpit due to foam created by the chemicals loaded in the hopper, which resulted in his inability to maintain airplane control during low-level flight and an impact with terrain. Contributing to the accident was the…
- [NTSB CEN21LA283](https://openairdocs.org/ntsb/CEN21LA283.md): Air Tractor AT-502B · Edwardsburg, MI · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 20, 2021 · N8523Z · Substantial damage
  > The pilot’s failure to identify rising terrain and to maintain terrain clearance from trees during an aerial application pass that resulted in an in-flight collision with trees and terrain.
- [NTSB CEN21FA270](https://openairdocs.org/ntsb/CEN21FA270.md): Air Tractor 502B · Paragould, AR · Accident · 1 fatal · Class 3 · Field · Final report · Jun 15, 2021 · N6088K · Destroyed
  > An 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 ANC21LA025](https://openairdocs.org/ntsb/ANC21LA025.md): Cessna 208B · Chevak, AK · Accident · No injuries · Class 4 · Limited · Final report · Mar 13, 2021 · N407GV · Substantial damage
  > The pilot’s loss of directional control during the back-taxi for departure in strong crosswind conditions which resulted in a runway excursion. Contributing to the accident was the snow-and-ice-covered runway.
- [NTSB ERA21LA021](https://openairdocs.org/ntsb/ERA21LA021.md): Beech 99 · Waterville, ME · Accident · No injuries · Class 3 · Limited · Final report · Oct 14, 2020 · N499CZ · Substantial damage
  > A failure of the right main landing gear drag leg support fitting and angle bracket as a result of multiple areas of fatigue cracking.
- [NTSB CEN21LA005](https://openairdocs.org/ntsb/CEN21LA005.md): Air Tractor AT402 · Egypt, AR · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2020 · N4540F · Substantial damage
  > The pilot’s failure to maintain clearance from a tree limb during a low-level aerial application flight.
- [NTSB CEN21LA004](https://openairdocs.org/ntsb/CEN21LA004.md): Piper PA46 · Lake Elmo, MN · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 2, 2020 · N62ZM · Substantial damage
  > A total loss of engine power for reasons that could not be determined.
- [NTSB CEN20WA423](https://openairdocs.org/ntsb/CEN20WA423.md): Cessna 208B · Beef Island, British Virgin Islands · Incident · Class 5 · Foreign · Sep 23, 2020 · N967FE
- [NTSB WPR20CA312](https://openairdocs.org/ntsb/WPR20CA312.md): Beechcraft C90A · Fortuna, CA · Accident · No injuries · Class 4 · Data collection · Final report · Aug 31, 2020 · N982SB · Substantial damage
  > A collision with a deer while landing at night.
- [NTSB WPR20LA246](https://openairdocs.org/ntsb/WPR20LA246.md): Air Tractor AT802 · Elgin, NV · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 30, 2020 · N8510M · 2 aircraft · Destroyed
  > The trailing pilot’s failure to maintain separation from the lead airplane during a fire retardant deployment flight, which resulted in the trailing airplane flying through a plume of retardant and the trailing pilot’s subsequent loss of visibility that led…
- [NTSB CEN20LA279](https://openairdocs.org/ntsb/CEN20LA279.md): Air Tractor AT502 · Dalhart, TX · Accident · No injuries · Class 3 · Limited · Final report · Jul 10, 2020 · N61315 · Substantial damage
  > The total loss of engine power due to a failed fuel control unit bearing.
- [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 CEN20CA221](https://openairdocs.org/ntsb/CEN20CA221.md): Air Tractor AT502 · Hiawatha, KS · Accident · No injuries · Class 4 · Data collection · Final report · Jun 8, 2020 · N5092J · Substantial damage
  > The pilot’s decision to attempt the takeoff with a tailwind in high density altitude conditions.
- [NTSB CEN20CA190](https://openairdocs.org/ntsb/CEN20CA190.md): Air Tractor AT502 · Bunkie, LA · Accident · Minor injuries · Class 4 · Data collection · Final report · May 23, 2020 · N571LA · Substantial damage
  > The pilot's failure to maintain directional control during takeoff.
- [NTSB CEN20CA153](https://openairdocs.org/ntsb/CEN20CA153.md): Air Tractor AT 602 · Mamou, LA · Accident · No injuries · Data collection · Final report · Apr 21, 2020 · N653LA · Substantial damage
  > The airplane's encounter with a sunken area during takeoff from a turf runway, which resulted in the airplane becoming prematurely airborne and impacting a tree and then terrain.
- [NTSB WPR20LA128](https://openairdocs.org/ntsb/WPR20LA128.md): Piper PA31T · Billings, MT · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 20, 2020 · N926K · Destroyed
  > The degraded airplane performance after takeoff for reasons that could not be determined from available evidence.
- [NTSB CEN20LA143](https://openairdocs.org/ntsb/CEN20LA143.md): Air Tractor AT 502 · Pecan Gap, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Apr 8, 2020 · N9185D · Destroyed
  > The pilot did not maintain adequate clearance from tree, which resulted in a collision with a tree and subsequent impact with terrain.
- [NTSB CEN20LA122](https://openairdocs.org/ntsb/CEN20LA122.md): Cessna 208 · LaCrosse, KS · Accident · 1 fatal · Class 3 · Limited · Final report · Mar 17, 2020 · N274PM · Destroyed
  > An infight loss of control as a result of pilot impairment, the cause of which could not be determined.
- [NTSB CEN20CA103](https://openairdocs.org/ntsb/CEN20CA103.md): Air Tractor AT 602 · Bunkie, LA · Accident · No injuries · Data collection · Final report · Feb 22, 2020 · N602BK · Substantial damage
  > The pilot's failure to lock the tailwheel before landing, which resulted in his loss of directional control during the landing roll, a runway excursion onto soft ground, and a subsequent ground loop.
- [NTSB CEN20LA083](https://openairdocs.org/ntsb/CEN20LA083.md): Piaggio P180 · Broomfield, CO · Accident · No injuries · Class 3 · Limited · Final report · Feb 13, 2020 · N677P · Substantial damage
  > The pilot’s loss of directional control on the snow-covered runway, which resulted in a runway excursion.
- [NTSB CEN20LA084](https://openairdocs.org/ntsb/CEN20LA084.md): Beech 200 · St Louis, MO · Accident · No injuries · Class 3 · Limited · Final report · Feb 6, 2020 · N405PT · Substantial damage
  > The pilot’s loss of directional control and the subsequent nose landing gear collapse of for undetermined reasons.
- [NTSB ANC20LA020](https://openairdocs.org/ntsb/ANC20LA020.md): Cessna 208 · Hooper Bay, AK · Accident · No injuries · Class 3 · Limited · Final report · Feb 5, 2020 · N454SF · Substantial damage
  > The pilot’s decision to depart from a contaminated runway, and his failure to make a timely decision to abort the takeoff when the airplane was not accelerating as expected. Contributing to the accident was the pilot’s decision to depart in limited visibility…
- [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 WPR20CA046](https://openairdocs.org/ntsb/WPR20CA046.md): Beech 350 · Visalia, CA · Accident · No injuries · Data collection · Final report · Dec 17, 2019 · N160RW · 2 aircraft · Substantial damage
  > The single-engine pilot's failure to yield to traffic established on the taxiway, which resulted in a ground collision.
- [NTSB ANC20LA003](https://openairdocs.org/ntsb/ANC20LA003.md): Cessna 208 · Honolulu, HI · Accident · No injuries · Class 3 · Limited · Final report · Oct 31, 2019 · N926FE · 2 aircraft · Minor damage
  > The pilot of the Cessna's failure to set the parking brake before diverting his attention inside the airplane, which resulted in his airplane colliding with the airplane ahead of it on the taxiway.
- [NTSB CEN20LA013](https://openairdocs.org/ntsb/CEN20LA013.md): Air Tractor AT 502 · Lamesa, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 22, 2019 · N9143F · Minor damage
  > The pilot's improper decision to maneuver at a low altitude and in close proximity to a wind turbine undergoing maintenance, which resulted in a collision with a tagline rope being held by a worker on the ground and serious injury to the worker.
- [NTSB GAA20CA021](https://openairdocs.org/ntsb/GAA20CA021.md): Wingtip To Wingtip Panzl S-330 · Cedartown, GA · Accident · No injuries · Data collection · Final report · Oct 11, 2019 · N540ML · 2 aircraft · Substantial damage
  > ***This report was modified on June 4, 2020. Please see the docket for this accident to view the original report.*** The departing pilot's failure to see and avoid the arriving airplane as it was turning off the runway from which the departing pilot was…
- [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 CEN19FA259](https://openairdocs.org/ntsb/CEN19FA259.md): Air Tractor AT502 · Sumner, IA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 8, 2019 · N6113C · Destroyed
  > The pilot’s impairment by medical conditions and/or medications, which resulted in the airplane’s impact with power lines and terrain.
- [NTSB GAA19CA453](https://openairdocs.org/ntsb/GAA19CA453.md): Air Tractor AT 502 · Stanton, TX · Accident · No injuries · Data collection · Final report · Jul 24, 2019 · N15400 · Substantial damage
  > The pilot's failure to maintain clearance from wires during an agricultural application flight.
- [NTSB GAA19CA452](https://openairdocs.org/ntsb/GAA19CA452.md): Air Tractor AT 502 · Welsh, LA · Accident · Minor injuries · Data collection · Final report · Jul 24, 2019 · N1509E · Substantial damage
  > The pilot's failure to maintain clearance from a telephone pole during an agricultural application flight.
- [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 WPR19MA177](https://openairdocs.org/ntsb/WPR19MA177.md): Beech 65-A90 · Mokuleia, HI · Accident · 11 fatal · Class 2 · Major · Final report · Jun 22, 2019 · N256TA · Destroyed
  > The pilot’s aggressive takeoff maneuver, which resulted in an accelerated stall and subsequent loss of control at an altitude that was too low for recovery. Contributing to the accident were (1) the operation of the airplane near its aft center of gravity…
- [NTSB GAA19CA352](https://openairdocs.org/ntsb/GAA19CA352.md): Air Tractor AT402 · Liberal, KS · Accident · No injuries · Data collection · Final report · Jun 17, 2019 · N5044Y · Substantial damage
  > The pilot's failure to see and avoid a windmill tower while maneuvering at low altitude.
- [NTSB GAA19CA354](https://openairdocs.org/ntsb/GAA19CA354.md): Air Tractor AT 602 · La Ward, TX · Accident · No injuries · Data collection · Final report · Jun 9, 2019 · N2602M · Substantial damage
  > The pilot's failure to maintain clearance from a wire during an aerial application flight in sun glare conditions.

Next page: https://openairdocs.org/ntsb.md?engine=52032&page=3

## 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'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52032&page=2

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