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NTSB investigations: Air Tractor AT-301, CA

21 cases on aircraft the registry lists as Air Tractor AT-301. 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.

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19792026

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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" = 'CA' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0390103', '0390105')) 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\" = 'CA' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0390103', '0390105'))
  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" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0390103', '0390105'))
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 WPR09LA374Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Firebaugh, CAA total loss of engine power due to fuel exhaustion that was due to the failure of company ground personnel to refuel the airplane. Contributing to the accident was unsuitable terrain for a forced landing.Jul 29, 2009 · N23189 · Substantial damage NTSB LAX02LA257Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Dos Palos, CAthe failure of the propeller blade due to fatigue. Factors in the accident were the inadequate maintenance-repair of the blade, and, inadequate pilot preflight inspections.Aug 22, 2002 · N8793S · Substantial damage NTSB LAX02LA203Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Westmorland, CAThe pilot's failure to maintain clearance with the power lines while maneuvering during an aerial application flight. A factor was the dark night condition.Jun 20, 2002 · N8719S · Destroyed NTSB LAX00LA087Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-301 · Brawley, CAFailure of the engine due to improper installation of the intake and exhaust push rods (components were switched) by unknown maintenance personnel.Feb 2, 2000 · N23043 · Destroyed NTSB LAX98LA128Accident · No injuriesLimited investigationFinal reportAir Tractor AT301 · Imperial, CAThe pilot's selection of the wrong runway, which resulted in a downwind takeoff attempt, and, his failure to obtain/maintain a proper airspeed during the takeoff sequence. The aircraft's gross weight and the prevailing density altitude were factors in the…Mar 24, 1998 · N7301P · Substantial damage NTSB LAX98LA090Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Wasco, CAThe pilot overboosting the engine on takeoff which resulted in a cracked cylinder and subsequent loss of engine power.Feb 18, 1998 · N3656C · Substantial damage NTSB LAX93LA327Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Dos Palos, CAThe failure of the master rod which resulted in a complete loss of engine power and subsequent forced landing. The irrigation ditch was a factor in this accident.Aug 18, 1993 · N2330V · Substantial damage NTSB LAX89DUG09Accident · No injuriesFinal reportAir Tractor AT-301A · Blythe, CAThe pilot's failure to verify the fuel supply prior to takeoff.Sep 22, 1989 · N3654N · Substantial damage NTSB LAX89DVA10Accident · No injuriesFinal reportAir Tractor AT-301 · Mendota, CAA loss of aircraft control by the pilot when he slowed the aircraft to begin a spray run. Contributing to the loss of control was the inoperative stall warning system.Sep 13, 1989 · N8578S · Substantial damage NTSB LAX88DUM05Accident · No injuriesFinal reportAir Tractor AT-301 · Niland, CAJust after takeoff, the pilot made a right turn to locate the ground flaggers and to avoid transmission wires. The pilot, unable to locate the flaggers, initiated a climb to avoid wires and rising terrain. However, the airplane did not gain sufficient…Jul 22, 1988 · N8719S · Substantial damage NTSB LAX88DVG07Accident · No injuriesFinal reportSnow AT-301 · Davis, CAAt the end of an aerial application flight, en route to home base, the engine quit. The pilot made an emergency landing in a field, where during the landing roll the airplane collided with a bale of hay and nosed over. Inspection of the engine revealed that…Jul 2, 1988 · N5224S · Substantial damage NTSB LAX84LA445Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · San Joaquin, CAThe Air Tractor was on takeoff initial climb and was about 20 ft high when the engine began to backfire. The aircraft settled into the cotton field and rotated about 90 degrees after ground contact. The plt reported that the number one cylinder was found to…Aug 19, 1984 · N8636S · Substantial damage NTSB LAX82DA265Accident · No injuriesFinal reportAir Tractor AT-301 · San Joaquin, CAThe aircraft engine started running rough on a ferry flight and the pilot decided to make a precautionary landing in a cotton field. During the landing the aircraft nosed over.Jul 18, 1982 · N4326S · Substantial damage NTSB LAX82DA046Accident · No injuriesFinal reportAir Tractor 301 · Dos Palos, CADuring the takeoff roll the pilot decided that he was not going to clear an 8 foot chain-link fence at the end of the runway. He stated that he pulled the dump-gate, chopped the throttle, and put on the brake but the aircraft went into soft dirt and the right…Jan 21, 1982 · N8793S · Substantial damage NTSB LAX81DVA02Accident · Minor injuriesClosedAir Tractor AT-301 · San Joaquin, CAOct 5, 1981 · N4341S · Substantial damage NTSB LAX81DVA53Accident · No injuriesClosedAir Tractor AT-301 · San Joaquin, CAJul 15, 1981 · N4341S · Substantial damage NTSB LAX81DUM13Accident · Minor injuriesClosedAir Tractor AT-301 · Brawley, CAMar 3, 1981 · N4399S · Substantial damage NTSB LAX80FUM30Accident · Serious injuriesClosedAir Tractor AT-301 · Brawley, CASep 7, 1980 · N8629S · Destroyed NTSB LAX80FUM26Accident · 1 fatalClosedAir Tractor AT-301 · Brawley, CAAug 26, 1980 · N8544S · Destroyed NTSB LAX80DVM02Accident · No injuriesClosedAir Tractor AT-301 · Greenfield, CAOct 17, 1979 · N4438S · Destroyed NTSB LAX79DVA48Accident · No injuriesClosedAir Tractor AT-301 · Mendota, CAJul 16, 1979 · N8578S · Substantial damage