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NTSB investigations: Pratt & Whitney R1340 series, SD

20 cases on aircraft whose registry engine model is Pratt & Whitney R1340 series. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19792026

Where

Latest cases

Query with 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."eventStateOrRegion" = 'SD' AND c."eventCountry" = 'USA' 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

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.\"eventStateOrRegion\" = 'SD' AND c.\"eventCountry\" = 'USA'
    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"

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."eventStateOrRegion" = 'SD' AND c."eventCountry" = 'USA'
  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

Run 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 CEN24LA229Accident · Minor injuriesClass 4 · LimitedFinal reportAero Commander S2R · White, SDA 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.Jun 13, 2024 · N1746S · Substantial damage NTSB GAA15CA117Accident · No injuriesData collectionFinal reportAir Tractor AT 401 · Wall, SDThe pilot's failure to adjust the airplane's useful load to compensate for the high temperature, which resulted in an insufficient climb rate to clear surrounding terrain, and a runway excursion.Jun 9, 2015 · N4549E · Substantial damage 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.Jun 11, 2014 · N8564S · Substantial damage NTSB CEN13LA375Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Colome, SDThe loss of engine power for reasons that could not be determined because a postaccident engine run revealed no anomalies that would have precluded normal operation.Jun 26, 2013 · N3168X · Substantial damage NTSB CEN12LA357Accident · No injuriesLimited investigationFinal reportRockwell International S-2R · Howard, SDA fractured fabricated aluminum oil line, which resulted in oil exhaustion followed by a forced landing.May 23, 2012 · N8421V · Substantial damage NTSB CEN12CA313Accident · Serious injuriesData collectionFinal reportAyres S2R-R1340 · Clear Lake, SDThe pilot's failure to perform a detailed observation of the power lines before beginning the aerial application work, which resulted in an inadvertent collision with the two lower wires.May 23, 2012 · N30951 · Substantial damage NTSB CEN11CA301Accident · No injuriesData collectionFinal reportAyres S2R-R1340 · Estelline, SDThe pilot's failure to maintain directional control of the airplane during takeoff.Apr 25, 2011 · N3104S · Substantial damage NTSB CHI08CA245Accident · No injuriesData collectionFinal reportAir Tractor 301 · Herreid, SDFailure of one of the tailwheel bolts on landing and the pilot's subsequent inability to maintain directional control.Aug 5, 2008 · N3161A · Substantial damage NTSB CHI03LA249Accident · No injuriesLimited investigationFinal reportNorth American AT-6D · Brookings, SDThe inadequate fuel supply for the flight, and the inadequate preflight by the pilot resulting in exhaustion of the fuel supply and subsequent loss of engine power. The tree was a contributing factor.Aug 7, 2003 · N9272K · Substantial damage NTSB CHI03LA243Accident · Minor injuriesLimited investigationFinal reportRockwell International S-2R · Mitchell, SDThe pilot's inadequate visual lookout and not maintaining clearance from the power line during the low level aerial application maneuver. A related factor was the power line.Aug 2, 2003 · N4923X · Substantial damage NTSB CHI01LA251Accident · Serious injuriesLimited investigationFinal reportAero Commander S2R · Pierre, SDclearance not obtained by the pilot. A contributing factor was the transmission line.Jul 31, 2001 · N5551X · Destroyed NTSB CHI98LA217Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Ipswich, SDthe pilot's inadequate evaluation of the weather conditions and his failure to maintain aircraft control which resulted in a stall/mush. Factors associated with the accident were the tailwind condition and the soft terrain.Jun 25, 1998 · N31677 · Substantial damage NTSB CHI98LA118Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Highmore, SDthe pilot failed to abort the takeoff in a timely manner and could not stop on the runway.Apr 3, 1998 · N1008T · Substantial damage NTSB CHI97LA106Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-401 · Highmore, SDa premature lift-off of the airplane by the pilot in command.Apr 18, 1997 · N1008P · Substantial damage NTSB CHI96LA167Accident · No injuriesLimited investigationFinal reportAir Tractor AT401 · Letcher, SDthe pilot's inadequate evaluation of the severe weather condition. A factor was the weather conditions.May 20, 1996 · N1019X · Substantial damage NTSB CHI95LA158Accident · No injuriesLimited investigationFinal reportAir Tractor AT301 · Clark, SDthe failure of the pilot to refuel prior to fuel exhaustion. A factor in the accident was the pilot's excessive braking.May 24, 1995 · N4353S · Substantial damage NTSB DEN85LA177Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Platte, SDWhile the plt was spraying a field, the landing gear of the acft struck the center pivot of an irrigation structure. Later, when the acft was landed, the gear collapsed.Jul 1, 1985 · N6674K · Substantial damage NTSB DEN84LA192Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Murdo, SDThe pilot reported the engine failed while he was in a procedure turn. The pilot made a forced landing in an open field and the acft nosed over. Examination of the engine after the accident revealed the engine 'swallowed an exhaust valve' that caused the…Jun 23, 1984 · N8974H · Substantial damage NTSB DEN81DTK21Accident · No injuriesClosedGrumman G-164C · Platte, SDAug 14, 1981 · N6674K · Substantial damage NTSB MKC79FTK15Accident · No injuriesClosedNa Rockwell S-2R · Blunt, SDMay 26, 1979 · N8501V · Minor damage