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Takeoff distance

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NTSB finding · Aircraft › Aircraft oper/perf/capability › Aircraft capability

All 67 cases54 in the probable cause
Cases
67
In the probable cause
54 (81%)
Fatal cases
7
NTSB code
01061025

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\", '01061025') 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\", '01061025'))
  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\", '01061025') 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 · 67

NTSB ANC25LA120Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · St Mary's, AKThe pilot’s improper decision to takeoff with a tailwind, from a short off-airport strip, which degraded the climb performance of the airplane and led to impact with trees at the end of the strip.Sep 14, 2025 · N3797Z · Substantial damageNTSB ANC25LA095Accident · No injuriesClass 4 · LimitedFinal reportHelio H-395 · Pilot Point, AKThe pilot's inadequate takeoff performance planning, which resulted in a runway excursion and collision with terrain.Aug 21, 2025 · N44344 · Substantial damageNTSB WPR24LA214Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Pleasant Grove, CAThe pilot’s delayed recognition of the extent of the airplane’s increased takeoff roll. Contributing to the accident was the pilot’s lack of experience operating the airplane at a high gross weight.Jun 25, 2024 · N6793K · Substantial damageNTSB ANC23LA073Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Beluga, AKThe pilot’s delayed go-around decision with insufficient runway remaining.Sep 10, 2023 · N124UA · Substantial damageNTSB WPR23LA334Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · Prescott, AZThe pilot-in-command’s inadequate preflight planning for the high density altitude and relative humidity conditions and his failure to recognize the need to reject the takeoff, allowing the student pilot to execute an abnormally long takeoff roll and apply…Sep 2, 2023 · N6834W · Substantial damageNTSB WPR23LA329Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-180 · Kanab, UTThe pilot's decision to take off in high density altitude conditions, which resulted in a loss of control and subsequent impact with terrain.Aug 30, 2023 · N33094 · Substantial damageNTSB WPR23LA282Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-28-140 · Elko, NVThe pilot’s failure to ensure adequate airplane performance before taking off from a significantly shorter runway than originally planned for.Jul 20, 2023 · N4149J · Substantial damageNTSB CEN23LA309Accident · No injuriesClass 4 · LimitedFinal reportPiper J3C-65 · Princeton, TXThe student pilot’s decision to attempt a takeoff from an unimproved field which resulted in an impact with an obstacle.Jul 16, 2023 · N41317 · Substantial damageNTSB WPR23LA266Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-12 · Judith Gap, MTThe pilot's decision to take off on a soft field that exceeded the performance capabilities of the airplane, which resulted in an impact with a pole and terrain.Jul 8, 2023 · N4135M · Substantial damageNTSB ERA23LA229Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 172 · South Bethlehem, NYThe pilot’s improper decision to attempt an intersection takeoff in a tailwind when the full runway in the opposite, headwind direction was available.May 11, 2023 · N1596E · Substantial damage
See all 67 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\", '01061025'))
  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.