# Final NTSB investigations: Pratt & Whitney R1340 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 1 of 33 · 1,649 cases

## Latest cases

- [NTSB ERA26LA334](https://openairdocs.org/ntsb/ERA26LA334.md): North American Harvard III · Sanatoga, PA · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 9, 2026 · N407EZ · Substantial damage
  > The pilot’s failure to maintain control of the airplane while landing in a crosswind.
- [NTSB ERA25LA371](https://openairdocs.org/ntsb/ERA25LA371.md): North American T-6G · Rossville, TN · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 28, 2025 · N888WV · Substantial damage
  > The pilot’s failure to adequately monitor the airplane’s path during takeoff toward the setting sun. Contributing was the undetected worn and fractured tailwheel locking pin.
- [NTSB ERA25LA342](https://openairdocs.org/ntsb/ERA25LA342.md): Schweizer G-164B · Dover, DE · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 9, 2025 · N8483K · Substantial damage
  > The pilot’s exceedance of the critical angle of attack which resulted in an aerodynamic stall at an altitude too low to recover.
- [NTSB CEN25LA283](https://openairdocs.org/ntsb/CEN25LA283.md): Air Tractor AT-301 · Hartsburg, IL · Accident · No injuries · Class 4 · Limited · Final report · Jul 23, 2025 · N2371V · Substantial damage
  > The pilot’s failure to maintain control of the airplane during takeoff with a tailwind from a wet turf airstrip.
- [NTSB CEN25LA254](https://openairdocs.org/ntsb/CEN25LA254.md): Schweizer G-164B · Russellville, IN · Accident · No injuries · Class 4 · Limited · Final report · Jul 15, 2025 · N7501A · Substantial damage
  > The pilot’s failure to establish and maintain the airstrip centerline during takeoff, which resulted in the airplane’s right wingtips contacting the corn that bordered the airstrip.
- [NTSB CEN25LA191](https://openairdocs.org/ntsb/CEN25LA191.md): Air Tractor AT-401 · Hamlet, NE · Accident · No injuries · Class 4 · Limited · Final report · Jun 2, 2025 · N60057 · Substantial damage
  > The pilot's failure to maintain clearance from the power lines during low altitude maneuvering.
- [NTSB WPR25LA158](https://openairdocs.org/ntsb/WPR25LA158.md): Schweizer G-164B · Butte City, CA · Accident · Minor injuries · Class 4 · Limited · Final report · May 9, 2025 · N7503L · Substantial damage
  > The pilot’s use of engine beta prior to ensuring the tailwheel was on the ground during landing roll.
- [NTSB CEN24LA364](https://openairdocs.org/ntsb/CEN24LA364.md): Grumman G-164A · LaPlace, LA · Accident · No injuries · Class 4 · Limited · Final report · Sep 21, 2024 · N6565 · Substantial damage
  > Total loss of engine power during the agricultural application flight for reasons that could not be determined.
- [NTSB WPR24LA282](https://openairdocs.org/ntsb/WPR24LA282.md): Grumman Acft ENG Cor-Schweizer G-164B · Durham, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 13, 2024 · N6633K · Substantial damage
  > The pilot’s failure to maintain clearance from powerlines, which resulted in a wire strike.
- [NTSB CEN24LA313](https://openairdocs.org/ntsb/CEN24LA313.md): Grumman G164 · Dyess, AR · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2024 · N6569 · Substantial damage
  > The improper overhaul of the carburetor and the malfunction of left magneto which resulted in a partial loss of engine power.
- [NTSB WPR24LA253](https://openairdocs.org/ntsb/WPR24LA253.md): Canadian Car & Foundry Harvard MK IV · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 25, 2024 · N52494 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.
- [NTSB ERA24LA286](https://openairdocs.org/ntsb/ERA24LA286.md): Grumman G-164A · Toccoa, GA · Accident · No injuries · Class 3 · Limited · Final report · Jun 29, 2024 · N7849 · Substantial damage
  > The pilot’s failure to set the engine speed control fully forward during takeoff, resulting in an engine surge and subsequent loss of control during landing.
- [NTSB CEN24LA241](https://openairdocs.org/ntsb/CEN24LA241.md): Air Tractor AT-301 · Andover, MO · Accident · No injuries · Class 4 · Limited · Final report · Jun 27, 2024 · N3165C · Substantial damage
  > The pilot’s inability to maintain altitude and airspeed during cruise flight likely due to a decrease in engine performance associated with the unauthorized use of automobile fuel, which led to an inflight collision with a tree and hard landing.
- [NTSB WPR24LA214](https://openairdocs.org/ntsb/WPR24LA214.md): Grumman Acft ENG Cor-Schweizer G-164B · Pleasant Grove, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 25, 2024 · N6793K · Substantial damage
  > The pilot’s delayed recognition of the extent of the airplane’s increased takeoff roll. Contributing to the accident was the pilot’s lack of experience operating the airplane at a high gross weight.
- [NTSB WPR24FA213](https://openairdocs.org/ntsb/WPR24FA213.md): Grumman Acft ENG Cor-Schweizer G-164A · Chamberino, NM · Accident · 1 fatal · Class 3 · Field · Final report · Jun 25, 2024 · N9709 · Destroyed
  > An aerodynamic stall and loss of control for reasons that could not be determined based on the available information.
- [NTSB CEN24LA229](https://openairdocs.org/ntsb/CEN24LA229.md): Aero Commander S2R · White, SD · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 13, 2024 · N1746S · Substantial damage
  > A low-level collision and engine ingestion with ducks, which resulted in a total loss of engine power, a forced landing, and a subsequent nose over.
- [NTSB WPR24LA167](https://openairdocs.org/ntsb/WPR24LA167.md): Canadian Car & Foundry Harvard MK IV · Modesto, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 2, 2024 · N7522U · Substantial damage
  > The pilot’s improper fuel tank selection, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was a malfunctioning fuel selector at low fuel levels.
- [NTSB ANC24FA038](https://openairdocs.org/ntsb/ANC24FA038.md): Schweizer G-164B · Richvale, CA · Accident · 1 fatal · Class 3 · Field · Final report · May 28, 2024 · N3629Y · Substantial damage
  > The pilot’s failure to maintain clearance from a trailer located on the edge of the runway during takeoff. Contributing to the accident was the location of the trailer on the side of the runway.
- [NTSB CEN24LA146](https://openairdocs.org/ntsb/CEN24LA146.md): Schweizer G-164B · Kaplan, LA · Accident · No injuries · Class 3 · Limited · Final report · Apr 2, 2024 · N75099 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined.
- [NTSB CEN24LA029](https://openairdocs.org/ntsb/CEN24LA029.md): Ag-Cat G-164B · Abbeville, LA · Accident · No injuries · Class 4 · Limited · Final report · Oct 28, 2023 · N910MG · Substantial damage
  > The pilot’s failure to maintain clearance from a power line during an aerial application flight.
- [NTSB WPR23FA345](https://openairdocs.org/ntsb/WPR23FA345.md): North American T-6G · Reno, NV · Accident · 2 fatal · Class 3 · Field · Final report · Sep 17, 2023 · N2897G · 2 aircraft · Substantial damage
  > The failure of both the Race 14 and Race 6 pilots to see and avoid each other while in the airport traffic pattern. Contributing to the accident was both pilots’ failure to fly the standard downwind and base legs.
- [NTSB CEN23LA375](https://openairdocs.org/ntsb/CEN23LA375.md): Schweizer G-164B · Rice, MN · Accident · No injuries · Class 4 · Limited · Final report · Aug 21, 2023 · N943QC · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a left crosswind.
- [NTSB WPR23LA305](https://openairdocs.org/ntsb/WPR23LA305.md): Grumman Acft ENG Cor-Schweizer G-164A · Davis, CA · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 6, 2023 · N5450 · Substantial damage
  > An inflight loss of control during a low altitude operation for undetermined reasons.
- [NTSB CEN23LA347](https://openairdocs.org/ntsb/CEN23LA347.md): Air Tractor AT-401 · Jamestown, ND · Accident · No injuries · Class 4 · Limited · Final report · Aug 3, 2023 · N6015W · Substantial damage
  > The pilot’s failure to maintain proper airspeed after liftoff, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall.
- [NTSB CEN23FA332](https://openairdocs.org/ntsb/CEN23FA332.md): North American AT-6D · Oshkosh, WI · Accident · 2 fatal · Class 3 · Field · Final report · Jul 29, 2023 · N49961 · Destroyed
  > The pilot’s failure to maintain airspeed while maneuvering, which resulted in the exceedance of the airplane’s critical angle of attack and an aerodynamic stall/spin.
- [NTSB WPR23LA261](https://openairdocs.org/ntsb/WPR23LA261.md): North American AT-6G · La Grande, OR · Accident · No injuries · Class 4 · Limited · Final report · Jul 8, 2023 · N92761 · Substantial damage
  > The pilot's failure to maintain clearance from trees during an airstrip overfly, which resulted in impact damage to the left wing.
- [NTSB CEN23FA269](https://openairdocs.org/ntsb/CEN23FA269.md): Schweizer G-164B · Beltrami, MN · Accident · 1 fatal · Class 3 · Field · Final report · Jun 27, 2023 · N7503H · Substantial damage
  > A collision with terrain and subsequent nose over for undetermined reasons.
- [NTSB CEN23LA241](https://openairdocs.org/ntsb/CEN23LA241.md): Air Tractor AT-401B · Holyoke, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 15, 2023 · N6106U · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB CEN23LA235](https://openairdocs.org/ntsb/CEN23LA235.md): North American T-6G · Colorado Springs, CO · Accident · No injuries · Class 4 · Limited · Final report · Jun 9, 2023 · N16JV · Substantial damage
  > The pilot’s failure to maintain directional control during landing.
- [NTSB WPR23LA211](https://openairdocs.org/ntsb/WPR23LA211.md): Rockwell International S-2R · Paul, ID · Accident · No injuries · Class 4 · Limited · Final report · Jun 3, 2023 · N4894X · Substantial damage
  > The pilot’s failure to maintain directional control on the takeoff roll, resulting in a runway excursion.
- [NTSB CEN23LA228](https://openairdocs.org/ntsb/CEN23LA228.md): Grumman Acft ENG Cor-Schweizer G-164 · Saffell, AR · Accident · No injuries · Class 4 · Limited · Final report · May 31, 2023 · N8405K · Substantial damage
  > The airplane’s encounter with a dust devil after takeoff, which resulted in a loss of lift, and a subsequent loss of control. Contributing to the accident was the presence of a dust devil in the airplane’s flight path.
- [NTSB ERA23LA170](https://openairdocs.org/ntsb/ERA23LA170.md): North American T-6G · Lakeland, FL · Accident · No injuries · Class 4 · Limited · Final report · Mar 29, 2023 · N791MH · Substantial damage
  > A loss of control on the ground as a result of left tailwheel steering cable separation.
- [NTSB WPR23FA122](https://openairdocs.org/ntsb/WPR23FA122.md): Rockwell International S-2R · Willows, CA · Accident · 1 fatal · Class 3 · Field · Final report · Mar 8, 2023 · N8424V · Substantial damage
  > The pilot’s failure to maintain clearance from powerlines while flying under multiple conductors during a low-altitude aerial application flight, which resulted in propeller contact with a powerline and a subsequent loss of control.
- [NTSB CEN23LA063](https://openairdocs.org/ntsb/CEN23LA063.md): Rockwell International S2R-G6 · Mission, TX · Accident · No injuries · Class 4 · Limited · Final report · Dec 6, 2022 · N4205X · Substantial damage
  > The pilot's failure to maintain clearance from an electrical box.
- [NTSB WPR22LA293](https://openairdocs.org/ntsb/WPR22LA293.md): Air Tractor AT-301 · Circle, MT · Accident · No injuries · Class 4 · Limited · Final report · Aug 7, 2022 · N36542 · Substantial damage
  > The loss of engine power due to carburetor ice. Contributing to the accident was the pilot’s failure to use carburetor heat.
- [NTSB CEN22LA349](https://openairdocs.org/ntsb/CEN22LA349.md): Schweizer G-164B · Knox, IN · Accident · No injuries · Class 3 · Limited · Final report · Jul 26, 2022 · N629EH · Substantial damage
  > A partial loss of engine power for undetermined reasons.
- [NTSB ERA22LA297](https://openairdocs.org/ntsb/ERA22LA297.md): Grumman G-164A · Hopewell Township, NJ · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 2, 2022 · N8923H · Substantial damage
  > A partial loss of engine power while maneuvering at low altitude due to a failure of the airplane’s supercharger.
- [NTSB ERA22LA224](https://openairdocs.org/ntsb/ERA22LA224.md): Air Tractor AT-301 · Somerville, TN · Accident · Minor injuries · Class 3 · Limited · Final report · May 11, 2022 · N31580 · Substantial damage
  > The inadequate inspection and maintenance of the engine exhaust system, which resulted in an in-flight fire.
- [NTSB CEN22LA193](https://openairdocs.org/ntsb/CEN22LA193.md): North American AT-6D · Huntington, IN · Accident · No injuries · Class 4 · Limited · Final report · May 2, 2022 · N515SA · Substantial damage
  > Loss of directional control during landing that resulted in an impact with terrain.
- [NTSB ERA22LA214](https://openairdocs.org/ntsb/ERA22LA214.md): North American SNJ-6 · Greenwood, SC · Accident · No injuries · Class 4 · Limited · Final report · May 1, 2022 · N451WA · Substantial damage
  > The loss of directional control due to a fractured tailwheel steering linkage assembly.
- [NTSB CEN22LA187](https://openairdocs.org/ntsb/CEN22LA187.md): North American AT-6D · Fredericksburg, TX · Accident · No injuries · Class 3 · Limited · Final report · Apr 30, 2022 · N29947 · Substantial damage
  > A total loss of engine power due to a failure of the No. 1 cylinder.
- [NTSB CEN22LA157](https://openairdocs.org/ntsb/CEN22LA157.md): Air Tractor AT-401 · Rayville, LA · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 26, 2022 · N9192E · Substantial damage
  > A loss of engine power for a reason that could not be determined based on available information.
- [NTSB CEN22LA101](https://openairdocs.org/ntsb/CEN22LA101.md): North American AT-6C · San Antonio, TX · Accident · No injuries · Class 4 · Limited · Final report · Jan 16, 2022 · N16JG · Substantial damage
  > The pilot’s loss of directional control during landing.
- [NTSB WPR22FA026](https://openairdocs.org/ntsb/WPR22FA026.md): Ayres S-2R · Shafter, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 3, 2021 · N8960Q · Substantial damage
  > The pilot’s decision to depart into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of airplane control.
- [NTSB ERA22LA032](https://openairdocs.org/ntsb/ERA22LA032.md): North American AT-6D · Pickens, SC · Accident · No injuries · Class 4 · Limited · Final report · Oct 24, 2021 · N3771M · Substantial damage
  > The pilot’s failure to maintain directional control during landing, resulting in a runway excursion and collision with rocky terrain.
- [NTSB CEN21LA393](https://openairdocs.org/ntsb/CEN21LA393.md): Air Tractor AT-401B · Storm Lake, IA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2021 · N5081W · Substantial damage
  > The pilot’s failure to maintain adequate airspeed during a landing approach with a tailwind that resulted in a landing overrun and impact with terrain.
- [NTSB ERA21FA334](https://openairdocs.org/ntsb/ERA21FA334.md): North American SNJ-2 · Wilkes-Barre, PA · Accident · 1 fatal · Class 3 · Field · Final report · Aug 20, 2021 · N52900 · Destroyed
  > A partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…
- [NTSB CEN21FA355](https://openairdocs.org/ntsb/CEN21FA355.md): North American T-6G · Starkville, MS · Accident · 2 fatal · Class 3 · Field · Final report · Aug 4, 2021 · N7197C · Destroyed
  > The pilot’s failure to maintain clearance from trees while maneuvering at low altitude.
- [NTSB WPR21LA299](https://openairdocs.org/ntsb/WPR21LA299.md): Schweizer G-164B · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2021 · N3629F · Substantial damage
  > A loss of thrust during a low-level agricultural application flight, which resulted in a descent and impact with terrain. The reason for the loss of thrust could not be determined based on available information.
- [NTSB CEN21LA352](https://openairdocs.org/ntsb/CEN21LA352.md): North American AT-6F · Adrian, MI · Accident · No injuries · Class 4 · Limited · Final report · Jul 28, 2021 · N6601C · Substantial damage
  > The loss of control during landing due to the out of rig condition of the tailwheel which resulted in a ground loop and impact with the runway.

Next page: https://openairdocs.org/ntsb.md?engine=52016&status=final&page=2

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=52016&status=final

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