NTSB investigations: Air Tractor AT-301

9 cases on aircraft the registry lists as Air Tractor AT-301, where the sequence of events included Loss of engine power (partial). 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

20082026
NTSB investigations: Air Tractor AT-301 per year, 2008–2026: 9 cases
20081
20091
20101
20111
20131
20142
20161
20221

Latest 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.aircraft_model_code IN ('0390103', '0390105')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '342' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
  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.

NTSB CEN22LA354Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-301 · Lamoni, IAA loss of airplane performance for reasons that could not be determined.Aug 1, 2022 · N4326S · DestroyedNTSB WPR16LA159Accident · No injuriesLimited investigationFinal reportAir Tractor AT 301 · Weiser, IDA partial loss of engine power due to an internal catastrophic failure of the master rod crankpin bearing.Aug 2, 2016 · N23923 · Substantial damageNTSB CEN14LA287Accident · No injuriesLimited investigationFinal reportAir Tractor AT 301 · Pearsall, TXThe failure of the No. 1 cylinder rod at the link pin. Contributing to the accident was oil starvation to the rod bearing due to the improper flushing of the oil cooler, which allowed metal and other debris in the oil to clog the drain and the led to the…Jun 12, 2014 · N8593S · Substantial damageNTSB CEN14LA229Accident · No injuriesLimited investigationFinal reportAir Tractor AT 301 · Hessmer, LAA partial loss of engine power for reasons that could not be determined because a full examination of the engine could not be performed.May 5, 2014 · N7309Z · Substantial damageNTSB CEN13LA341Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Farnsworth, TXThe partial loss of engine power for reasons that could not be determined because the postaccident engine examination revealed no anomalies.Jun 9, 2013 · N4421S · Substantial damageNTSB CEN11LA598Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Edgeley, NDThe loss of engine power for reasons that could not be determined because postaccident examination of the airplane and engine did not reveal any anomalies that would have precluded normal operation.Aug 13, 2011 · N73071 · Substantial damageNTSB CEN10CA582Accident · No injuriesData collectionFinal reportAir Tractor AT-301 · Atkins, ARA partial loss of engine power during low-altitude flight for undetermined reasons.Sep 17, 2010 · N2309F · Substantial damageNTSB WPR09LA085Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Beaver, UTA loss of engine power while maneuvering due to a sheared propeller blade's pitch change link. Contributing to the accident was lack of suitable terrain for the forced landing.Jan 15, 2009 · N3170C · Substantial damageNTSB DEN08LA105Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301A · Garwood, TXA loss of engine power due to the total failure of the number 2 cylinder.Jun 19, 2008 · N3166H · Destroyed