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Performance/control parameters, general

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NTSB finding · Aircraft › Aircraft oper/perf/capability › Performance/control parameters

All 1,269 cases1,227 in the probable cause
Cases
1,269
In the probable cause
1,227 (97%)
Fatal cases
591
NTSB code
01062000

NTSB has coded findings and defining events since 2008. Earlier cases used its older occurrence and cause codes, so they aren’t counted here.

When and where

In green, cases where NTSB made it part of the probable cause; in gray, a factor or other finding. Findings are coded with the final report, often a year or more after the event, so the latest years are incomplete.

Cases per year

2008In the probable causeFactor only2026

Where

Open the map
Query with SQL
duckdb -csv -c "SELECT year(c.\"eventDate\") AS year, count(DISTINCT f.case_mkey) AS cases,
    count(DISTINCT f.case_mkey) FILTER (WHERE f.\"inProbableCause\") AS in_probable_cause
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = f.case_mkey
  WHERE starts_with(f.\"findingCode\", '01062000') AND c.\"eventDate\" >= DATE '2000-01-01'
  GROUP BY 1
  ORDER BY 1"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

In the same cases

Defining events
Aircraft models

Aircraft matched to the registry by N-number and date.

Other findings
Query with SQL
duckdb -csv -c "WITH matched AS (SELECT DISTINCT case_mkey, aircrafts_position FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' WHERE starts_with(\"findingCode\", '01062000'))
  SELECT * FROM (
  SELECT 'Defining event' AS kind, e.\"tier2Number\" AS code, max(e.\"eventTier2Name\") AS name, count(DISTINCT f.case_mkey) AS cases
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_events.parquet' e ON e.case_mkey = f.case_mkey AND e.aircrafts_position = f.aircrafts_position AND e.\"isDefiningEvent\"
  WHERE e.\"tier2Number\" <> ''
  GROUP BY ALL
  UNION ALL
  SELECT 'Aircraft model', a.aircraft_model_code, any_value(concat_ws(' ', m.manufacturer, m.model)), count(DISTINCT f.case_mkey)
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = f.case_mkey AND a.position = f.aircrafts_position
  LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m ON m.code = a.aircraft_model_code
  WHERE a.aircraft_model_code IS NOT NULL
  GROUP BY ALL
  UNION ALL
  SELECT 'Other finding', left(g.\"findingCode\", 8), max(g.\"tier4Name\"), count(DISTINCT g.case_mkey)
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' g
  WHERE g.case_mkey IN (SELECT case_mkey FROM matched) AND NOT starts_with(g.\"findingCode\", '01062000') AND g.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY ALL
  )
  QUALIFY row_number() OVER (PARTITION BY kind ORDER BY cases DESC) <= 10
  ORDER BY kind, cases DESC"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Newest cases · 1,269

NTSB CEN26LA214Accident · No injuriesClass 4 · LimitedFinal reportCessna 182 · Dickinson, NDThe pilot’s failure to maintain aircraft control during landing in gusting wind conditions which resulted in a hard landing.May 28, 2026 · N2056X · Substantial damageNTSB CEN26LA203Accident · Serious injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Fort Worth, TXThe flight instructor’s delayed remedial action and the student pilot’s failure to maintain helicopter control during hover.May 27, 2026 · N5488H · Substantial damageNTSB CEN26LA177Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-602 · El Campo, TXThe pilot’s failure to maintain aircraft control during takeoff resulting in a collision with a building during takeoff.May 5, 2026 · N422TW · DestroyedNTSB WPR26LA156Accident · No injuriesClass 4 · LimitedFinal reportMarshall Daniel R L-21 · Cody, WYThe pilot's failure to maintain control of the airplane during the landing rollout, which resulted in a nose-over.Apr 10, 2026 · N453HC · Substantial damageNTSB WPR26LA112Accident · No injuriesClass 4 · LimitedFinal reportBeech 76 · Snohomish, WAThe flight instructor’s inadequate supervision of a dual student who attempted a go-around using one engine which resulted in a loss of control and impact with the ground.Mar 1, 2026 · N1850N · Substantial damageNTSB ERA26LA122Accident · Minor injuriesClass 4 · LimitedFinal reportHughes 269A · Gettysburg, PAThe flight instructor’s failure to identify the excess power required to lift off from soft and muddy ground, which resulted in a loss of control and subsequent collision with a hangar during takeoff.Feb 21, 2026 · N1020S · Substantial damageNTSB CEN26LA112Accident · Minor injuriesClass 4 · LimitedFinal reportSocata TBM 700 · Crockett, TXThe pilot’s failure to maintain airplane control during a go-around that resulted in a collision with terrain.Feb 5, 2026 · N313BP · DestroyedNTSB CEN26LA104Accident · No injuriesClass 4 · LimitedFinal reportTextron 172S · Augusta, KSThe student pilot’s failure to maintain control during the takeoff.Jan 31, 2026 · N767VK · Substantial damageNTSB CEN26LA083Accident · No injuriesClass 4 · LimitedFinal reportCessna 150 · Round Lake Park, ILThe student pilot’s failure to maintain directional control during a soft-field takeoff and the flight instructor’s delayed remedial action.Jan 5, 2026 · N101FA · Substantial damageNTSB CEN26LA067Accident · No injuriesClass 4 · LimitedFinal reportMark O Treidel American Ranger AR-1 · Denver, COThe pilot’s failure to attain rotor RPM and maintain proper rotor disc angle during takeoff which resulted in a rotor strike with the rudder.Dec 16, 2025 · N529MW · Substantial damage
See all 1,269 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '01062000'))
  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.