# 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 3 of 13 · 650 cases

## Cases, newest first

- [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 WPR19LA112](https://openairdocs.org/ntsb/WPR19LA112.md): Air Tractor AT502 · Morganza, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 16, 2019 · N599LA · Substantial damage
  > A loss of aircraft control due to the separation of the elevator pushrod attachment bolt.
- [NTSB GAA19WA342](https://openairdocs.org/ntsb/GAA19WA342.md): Raytheon B200 · Lausanne-Switzerland, Switzerland · Incident · No injuries · Foreign investigation · Feb 2, 2019 · N7779V · No damage
  > The government of Switzerland has notified the NTSB of an accident involving a RAYTHEON B200 airplane that occurred on February 02, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Switzerland's investigation under the…
- [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 GAA19CA078](https://openairdocs.org/ntsb/GAA19CA078.md): Air Tractor AT 502 · Americus, GA · Accident · No injuries · Data collection · Final report · Nov 28, 2018 · N843WA · Substantial damage
  > The pilot's failure to see and avoid a power line during an agricultural application flight.
- [NTSB WPR19IA030](https://openairdocs.org/ntsb/WPR19IA030.md): Cessna 208 · Bakersfield, CA · Incident · Minor injuries · Class 3 · Incident · Final report · Nov 24, 2018 · N781FE · No damage
  > The pilot's loss of consciousness while taxiing due to an accumulation of toxic levels of carbon dioxide gas inside the airplane as a result of dry ice sublimation. Also causal was the pilot's decision to fly the airplane in an unventilated configuration, the…
- [NTSB CEN19FA003](https://openairdocs.org/ntsb/CEN19FA003.md): Air Tractor AT502 · Placedo, TX · Accident · 1 fatal · Field investigation · Final report · Oct 12, 2018 · N6135P · Destroyed
  > The pilot's failure to maintain clearance from the antenna tower, a known obstruction, during the agricultural application flight. Contributing to the accident was glare from the sun which hindered the pilot's ability to see and avoid the antenna tower.
- [NTSB GAA19CA010](https://openairdocs.org/ntsb/GAA19CA010.md): Air Tractor AT 402 · Crowley, LA · Accident · No injuries · Data collection · Final report · Oct 8, 2018 · N1500E · Substantial damage
  > The pilot's selection of unsuitable terrain for takeoff, which resulted in a collision with vegetation and a subsequent loss of directional control.
- [NTSB GAA18CA528](https://openairdocs.org/ntsb/GAA18CA528.md): Beech 200 · Burbank, CA · Accident · No injuries · Data collection · Final report · Sep 3, 2018 · N97WC · Substantial damage
  > The flight instructor's and pilot receiving instruction's failure to maintain clearance from a tree while taxiing.
- [NTSB WPR18LA234](https://openairdocs.org/ntsb/WPR18LA234.md): Air Tractor AT 400 · Grand Forks, ND · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 21, 2018 · N7300M · Substantial damage
  > The loss of engine power while maneuvering due to the failure of the power turbine blade assembly for reasons that could not be determined based on available evidence.
- [NTSB GAA18CA476](https://openairdocs.org/ntsb/GAA18CA476.md): Air Tractor AT502 · Louise, MS · Accident · No injuries · Data collection · Final report · Jul 30, 2018 · N205SK · Substantial damage
  > The pilot's improper landing flare, which resulted in a hard, bounced landing and a subsequent loss of directional control.
- [NTSB CEN18FA263](https://openairdocs.org/ntsb/CEN18FA263.md): Air Tractor AT-602 · Wheatley, AR · Accident · 1 fatal · Field investigation · Final report · Jul 11, 2018 · N8508P · Destroyed
  > The pilot's failure to maintain clearance from terrain for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA249](https://openairdocs.org/ntsb/CEN18LA249.md): Air Tractor AT502 · Tappen, ND · Accident · No injuries · Limited investigation · Final report · Jun 28, 2018 · N502S · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on the available evidence.
- [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 CEN18LA194](https://openairdocs.org/ntsb/CEN18LA194.md): Air Tractor AT 502B · Qulin, MO · Accident · No injuries · Limited investigation · Final report · May 27, 2018 · N6180J · Substantial damage
  > The pilot’s improper weight-and-balance calculations and his decision to take off with the airplane at a high gross weight in high density altitude conditions, which resulted in an attempted takeoff that exceeded the airplane’s performance capability. Also…
- [NTSB GAA18CA309](https://openairdocs.org/ntsb/GAA18CA309.md): Air Tractor AT 402 · Nicolaus, CA · Accident · No injuries · Data collection · Final report · May 19, 2018 · N5128N · Substantial damage
  > The pilot’s failure to maintain adequate clearance from a power transmission wire.
- [NTSB GAA18CA187](https://openairdocs.org/ntsb/GAA18CA187.md): Beech 99 · King Salmon, AK · Accident · No injuries · Data collection · Final report · Mar 29, 2018 · N31TN · Substantial damage
  > The pilot’s failure to maintain an adequate approach path and runway centerline during the initial landing, which resulted in a hard landing to the left of the runway and damage to the landing gear and wing.
- [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 GAA18CA137](https://openairdocs.org/ntsb/GAA18CA137.md): Beech C90 · Montague, CA · Accident · No injuries · Data collection · Final report · Feb 12, 2018 · N118MF · Substantial damage
  > The failure of pilot to extend the landing gear during landing.
- [NTSB ERA18LA031](https://openairdocs.org/ntsb/ERA18LA031.md): Piper PA46 · Clearwater, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 25, 2017 · N863RB · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available information.
- [NTSB CEN18LA019](https://openairdocs.org/ntsb/CEN18LA019.md): Air Tractor AT 502B · Olton, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 24, 2017 · N502G · Destroyed
  > The pilot's exceedance of the airplane’s critical angle of attack while maneuvering during the aerial application flight, which resulted in an aerodynamic stall and loss of control at an altitude too low to recover.
- [NTSB ANC18LA005](https://openairdocs.org/ntsb/ANC18LA005.md): Raytheon B200 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Oct 21, 2017 · N363JH · Substantial damage
  > The pilot's failure to extend the landing gear before landing, which resulted in a gear-up landing. Contributing to the accident was the pilot's fatigue and complacency.
- [NTSB WPR17LA207](https://openairdocs.org/ntsb/WPR17LA207.md): Cessna 208B · Sedona, AZ · Accident · No injuries · Limited investigation · Final report · Sep 16, 2017 · N786WW · Substantial damage
  > The pilot's failure to maintain clearance from a light pole while taxiing.
- [NTSB ERA17FA279](https://openairdocs.org/ntsb/ERA17FA279.md): Air Tractor AT502 · Philipp, MS · Accident · 1 fatal · Field investigation · Final report · Aug 16, 2017 · N6082B · Substantial damage
  > The pilot's improper decision to attempt a visual flight rules flight in instrument meteorological conditions, below a low overcast ceiling, which resulted in controlled flight into terrain.
- [NTSB GAA17CA490](https://openairdocs.org/ntsb/GAA17CA490.md): Cessna 208 · Mulino, OR · Accident · No injuries · Data collection · Final report · Aug 4, 2017 · N9829B · Substantial damage
  > The pilot's improper landing flare, which resulted in a bounced landing.
- [NTSB WPR17LA177](https://openairdocs.org/ntsb/WPR17LA177.md): Air Tractor AT 802A · Wells, NV · Accident · No injuries · Limited investigation · Final report · Jul 31, 2017 · N70LA · Substantial damage
  > The pilot's failure to maintain directional control during a period of thermal activity, which led to a runway excursion and impact with terrain.
- [NTSB GAA17CA574](https://openairdocs.org/ntsb/GAA17CA574.md): Cessna 208 · New York, NY · Accident · No injuries · Data collection · Final report · Jul 21, 2017 · N802TW · Substantial damage
  > The airplane’s encounter with boat wake and multiple swells during a water takeoff.
- [NTSB GAA17CA385](https://openairdocs.org/ntsb/GAA17CA385.md): Air Tractor AT 502 · Edna, TX · Accident · No injuries · Data collection · Final report · Jul 2, 2017 · N6135P · Substantial damage
  > The pilot’s failure to see and avoid a tower during an agricultural application flight.
- [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 DCA17FA109](https://openairdocs.org/ntsb/DCA17FA109.md): Short Bros. & Harland SD3 30 · Charleston, WV · Accident · 2 fatal · Field investigation · Final report · May 5, 2017 · N334AC · Substantial damage
  > the flight crew's improper decision to conduct a circling approach contrary to the operator's standard operating procedures (SOP) and the captain's excessive descent rate and maneuvering during the approach, which led to inadvertent, uncontrolled contact with…
- [NTSB ANC17FA021](https://openairdocs.org/ntsb/ANC17FA021.md): Cessna 208B · Chignik Lake, AK · Accident · 1 fatal · Field investigation · Final report · May 1, 2017 · N803TH · Substantial damage
  > The pilot's continued visual flight rules flight into an area of mountainous terrain and instrument meteorological conditions, which resulted in controlled flight into terrain (CFIT). Contributing to the accident was the company's failure to provide the pilot…
- [NTSB CEN17LA165](https://openairdocs.org/ntsb/CEN17LA165.md): Air Tractor AT 602 · Vidrine, LA · Accident · No injuries · Limited investigation · Final report · Apr 21, 2017 · N653LA · Substantial damage
  > The total loss of engine power for reasons that could not be determined because an examination of the engine and a test run did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [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 CEN17LA121](https://openairdocs.org/ntsb/CEN17LA121.md): Beech C90A · Rattan, OK · Accident · No injuries · Limited investigation · Final report · Feb 14, 2017 · N1551C · Substantial damage
  > The loss of electrical power due to the pilot’s inadvertent selection of the engine start switches and the subsequent fuel exhaustion to the left engine as the pilot attempted to locate visual meteorological conditions. Contributing to the accident were the…
- [NTSB CEN17LA123](https://openairdocs.org/ntsb/CEN17LA123.md): Beech C 99 · Durango, CO · Accident · No injuries · Limited investigation · Final report · Jan 24, 2017 · N216CS · Substantial damage
  > The pilot's inability to maintain directional control during takeoff in crosswind conditions on a contaminated runway, which resulted in a runway excursion.
- [NTSB WPR17LA056](https://openairdocs.org/ntsb/WPR17LA056.md): Beech 99 · Billings, MT · Accident · No injuries · Limited investigation · Final report · Jan 19, 2017 · N326CA · Substantial damage
  > The fatigue failure of the left main landing gear (MLG) actuator piston rod, which prevented the hydraulic system from producing pressure to control the MLG’s position and led to the right MLG collapsing during landing.
- [NTSB WPR17LA031](https://openairdocs.org/ntsb/WPR17LA031.md): Piper PA 31T · Missoula, MT · Accident · No injuries · Limited investigation · Final report · Dec 5, 2016 · N909PW · Substantial damage
  > Failure of the left windshield due to moisture ingression into the windshield laminate, which deteriorated the strength of the windshield.
- [NTSB CEN17LA027](https://openairdocs.org/ntsb/CEN17LA027.md): Air Tractor AT 502B · Hereford, TX · Accident · Serious injuries · Limited investigation · Final report · Oct 27, 2016 · N8525G · Substantial damage
  > The pilot's failure to maintain clearance from a cotton crop while maneuvering during agricultural application operations, which resulted in a loss of airplane control.
- [NTSB ANC17MA001](https://openairdocs.org/ntsb/ANC17MA001.md): Cessna 208B · Togiak, AK · Accident · 3 fatal · Class 1 · Major · Final report · Oct 2, 2016 · N208SD · Destroyed
  > The flight crew's decision to continue the visual flight rules flight into deteriorating visibility and their failure to perform an immediate escape maneuver after entry into instrument meteorological conditions, which resulted in controlled flight into…
- [NTSB DCA16WA242](https://openairdocs.org/ntsb/DCA16WA242.md): Beech 1900C · Long Key, Bahamas · Incident · No injuries · Foreign investigation · Sep 30, 2016 · N376SA
  > The Bahamas Air Accident Investigation Unit (AAIU) has notified the NTSB of an accident involving a Beech 1900 on September 30, 2016. The NTSB has appointed a U.S. Accredited Representative to assist the AAIU investigation under the provisions of ICAO Annex…
- [NTSB GAA16CA477](https://openairdocs.org/ntsb/GAA16CA477.md): Pacific Aerospace 750XL · Warrenton, VA · Accident · No injuries · Data collection · Final report · Sep 9, 2016 · N750SS · Substantial damage
  > The pilot's failure to set the wing flaps for takeoff, which resulted in an aerodynamic stall, an aborted takeoff, and a runway overrun.
- [NTSB CEN16LA326](https://openairdocs.org/ntsb/CEN16LA326.md): Thrush S2R T660 · Ruthton, MN · Accident · 1 fatal · Limited investigation · Final report · Aug 19, 2016 · N40499 · Destroyed
  > The pilot's failure to see and avoid the tower guy-wire during an agricultural spraying operation.
- [NTSB CEN16LA312](https://openairdocs.org/ntsb/CEN16LA312.md): Air Tractor AT-502B · Hickory Ridge, AR · Accident · 1 fatal · Limited investigation · Final report · Aug 8, 2016 · N634LA · Substantial damage
  > The pilot's failure to maintain clearance from a transmission line while maneuvering at low altitude.
- [NTSB ANC16FA052](https://openairdocs.org/ntsb/ANC16FA052.md): Cessna 210-5 · Wasilla, AK · Accident · Minor injuries · Field investigation · Final report · Aug 5, 2016 · N1839Z · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid each other while landing at a non-tower-controlled airport, which resulted in a midair collision. Contributing to the accident was the absence of radio calls from the Cessna during the traffic pattern preceding the…
- [NTSB WPR16FA153](https://openairdocs.org/ntsb/WPR16FA153.md): Piper PA-31T · McKinleyville, CA · Accident · 4 fatal · Field investigation · Final report · Jul 29, 2016 · N661TC · Destroyed
  > An inflight fire in the floor area near the main bus tie circuit breaker panel that resulted from chafing between an electrical wire and a hydraulic line and/or airplane structure.
- [NTSB CEN16LA292](https://openairdocs.org/ntsb/CEN16LA292.md): Air Tractor AT 402 · Sac City, IA · Accident · 1 fatal · Limited investigation · Final report · Jul 29, 2016 · N1016G · Destroyed
  > The pilot's failure to maintain adequate clearance from power lines. Contributing to the accident was the pilot's failure to circle over the field to identify hazards before beginning the aerial application.
- [NTSB WPR16LA150](https://openairdocs.org/ntsb/WPR16LA150.md): Beech 65 A90 · Byron, CA · Accident · No injuries · Limited investigation · Final report · Jul 24, 2016 · N256TA · Substantial damage
  > The pilot’s failure to maintain an adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall and subsequent spin. Also causal to the accident was the pilot’s failure to follow prescribed spin…
- [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…

Next page: https://openairdocs.org/ntsb.md?engine=52032&page=4

## 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=3

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