NTSB investigations: Pratt & Whitney R1340 series
12 cases on aircraft whose registry engine model is Pratt & Whitney R1340 series, where the defining event was Aerodynamic stall/spin. 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
| 2009 | 2 |
|---|---|
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2023 | 1 |
| 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016')
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\" = '241'))
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016')
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" = '241'))
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 ERA25LA342Accident · Minor injuriesClass 4 · LimitedFinal reportSchweizer G-164B · Dover, DEThe pilot’s exceedance of the critical angle of attack which resulted in an aerodynamic stall at an altitude too low to recover.NTSB CEN23FA332Accident · 2 fatalClass 3 · FieldFinal reportNorth American AT-6D · Oshkosh, WIThe 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 GAA19CA283Accident · No injuriesData collectionFinal reportRockwell S2R · Grangeville, IDThe pilot's exceedance of the airplane's critical angle of attack while turning at low altitude, which resulted in an aerodynamic stall.NTSB GAA19CA271Accident · No injuriesData collectionFinal reportAyres S 2R · Stuttgart, ARThe pilot's exceedance of the airplane's critical angle of attack while maneuvering during an agricultural application flight, which resulted in an aerodynamic stall.NTSB CEN18FA147Accident · 2 fatalField investigationFinal reportNorth American SNJ 5 · Kingsville, TXThe pilot's failure to maintain airspeed during a steep turn after takeoff, resulting in an exceedance of the airplane's critical angle of attack and a subsequent accelerated stall at an altitude too low for recovery.NTSB CEN16FA328Accident · 1 fatalField investigationFinal reportAero Commander S2R · Center, COThe pilot's failure to maintain airplane control during a low-level maneuver, which resulted in an aerodynamic stall.NTSB CEN15LA345Accident · No injuriesLimited investigationFinal reportAir Tractor AT 401 · Nekoosa, WIThe pilot’s inadequate preflight planning, which resulted in his attempt to take off for the agricultural application flight with the airplane over its maximum gross weight in high-density altitude conditions and led to the airplane’s degraded climb…NTSB CEN15LA259Accident · Minor injuriesLimited investigationFinal reportGulfstream-Schweizer A/C Gulfstream AM G 164B · Delaplaine, ARThe pilot’s failure to establish a proper airspeed and angle-of attack during takeoff in elevated density altitude and light tailwind conditions, which resulted in an aerodynamic stall.NTSB CEN14LA284Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Winner, SDThe pilot's improper decision to attempt a takeoff with a tailwind and his failure to achieve the proper airspeed for liftoff, which resulted in the airplane exceeding its critical angle of attack and entering an aerodynamic stall shortly after liftoff.NTSB CEN13LA504Accident · No injuriesLimited investigationFinal reportGulfstream-Schweizer A/C Gulfstream AM G-164B · Walnut Ridge, ARThe pilot's failure to properly set the engine power for takeoff, which resulted in the airplane subsequently settling into terrain.NTSB CEN09FA425Accident · 1 fatalField investigationFinal reportNorth American SNJ-5 · Simla, COThe pilot’s failure to maintain control of the airplane while practicing aerobatic maneuvers and his subsequent failure to recover from an inadvertent spin.NTSB ERA09LA385Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Brinson, GAThe pilot's failure to maintain adequate airspeed while maneuvering, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's lack of experience in the make and model airplane.