NTSB investigations: Air Tractor AT-502B

8 cases on aircraft the registry lists as Air Tractor AT-502B, where the sequence of events included Loss of engine power (total). 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

20102026
NTSB investigations: Air Tractor AT-502B per year, 2010–2026: 8 cases
20101
20131
20141
20201
20221
20231
20241
20261

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 ('0390307')
      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\" = '341' 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 CEN26LA128Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-502 · Larose, LAThe pilot’s improper fuel planning and his failure to adequately monitor the fuel level during flight, which resulted in fuel exhaustion, and a total loss of engine power. Contributing to the accident was the pilot’s lack of attention performing the task,…Mar 1, 2026 · N5063N · Substantial damageNTSB WPR25LA011Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT502 · Corcoran, CAA total loss of engine power due to the pilot's improper manipulation of the condition lever during flight, which resulted in fuel starvation and a forced landing.Oct 8, 2024 · N243LA · Substantial damageNTSB ERA23LA327Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT502 · Leipsic, OHThe incorrect assembly of the turbine engine’s reduction gear box second-stage ring gear, which resulted in an internal failure of multiple engine components and a total loss of power.Aug 4, 2023 · N5048S · Substantial damageNTSB CEN22LA312Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-502B · Decatur, ILFracture of the compressor turbine (CT) blades due to creep.Jul 11, 2022 · N5850R · Substantial damageNTSB CEN20LA279Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT502 · Dalhart, TXThe total loss of engine power due to a failed fuel control unit bearing.Jul 10, 2020 · N61315 · Substantial damageNTSB WPR14LA267Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT 502B · Sacramento, CAThe total loss of engine power for reasons that could not be determined because the airplane was not available for postaccident examination.Jun 23, 2014 · N61150 · Substantial damageNTSB CEN13LA473Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Nauvoo, ILA fatigue failure of an engine compressor turbine blade, which resulted in extensive secondary engine damage and a complete loss of engine power.Jul 15, 2013 · N6113C · Substantial damageNTSB CEN10LA298Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Pollard, ARA loss of engine power for undetermined reasons.Jun 4, 2010 · N6083G · Substantial damage