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

All 152 cases122 in the probable cause
Cases
152
In the probable cause
122 (80%)
Fatal cases
67
NTSB code
01061035

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\", '01061035') 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\", '01061035'))
  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\", '01061035') 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 · 152

NTSB WPR25LA308Accident · Serious injuriesClass 4 · LimitedFinal reportThomas Graham Teenie Two · Chehalis, WAThe pilot's improper decision to take off with the airplane over its maximum allowable gross weight, which degraded its climb performance and led to a subsequent off airport landing.Sep 11, 2025 · N311TS · Substantial damageNTSB CEN25LA231Accident · No injuriesClass 3 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Lockport, LAThe pilot’s inadequate planning for the high density altitude conditions which resulted in reduced airplane performance, climb capability, and subsequent forced landing.Jul 1, 2025 · N8834H · Substantial damageNTSB ANC25MA018Accident · 10 fatalClass 1 · MajorFinal reportTextron 208B · Nome, AKThe National Transportation Safety Board determines that the probable cause of this accident was the pilot’s inadequate airspeed management due to workload and degraded situation awareness and his improper inputs leading up to and during the aerodynamic…Feb 6, 2025 · N321BA · DestroyedNTSB CEN25LA074Accident · No injuriesClass 3 · LimitedFinal reportCessna 560 · Pagosa Springs, COThe pilot’s inadequate preflight planning and poor preflight inspection and decision-making, which led to a takeoff attempt above the airplane’s certified maximum takeoff weight with snow-contaminated wings, resulting in a rejected takeoff at an airspeed…Dec 27, 2024 · N753MB · Substantial damageNTSB WPR25LA034Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Durkee, ORThe pilot's inadequate performance planning, which resulted in insufficient engine power to transition into an out-of-ground-effect hover at a high gross weight.Nov 7, 2024 · N4361R · Substantial damageNTSB CEN24LA194Accident · Serious injuriesClass 4 · LimitedFinal reportLanni Charles T Skyranger II · Breaux Bridge, LAThe pilot’s decision to depart with the airplane over maximum gross weight, which reduced the climb performance and resulted in a collision with a tree.May 11, 2024 · N122LF · Substantial damageNTSB CEN24FA028Accident · 1 fatalClass 3 · FieldFinal reportPiper PA46 · McCook, NEThe pilot exceeded the airplane’s critical angle of attack during the initial climb, resulting in an aerodynamic stall from which he could not recover. Contributing to the accident was the pilot’s decision to take off with the airplane well above its maximum…Oct 30, 2023 · N510KC · Substantial damageNTSB ANC23FA074Accident · 1 fatalClass 2 · FieldFinal reportPiper PA-18-150 · St. Mary's, AKThe pilot’s decision to operate the airplane above its maximum certificated gross weight, and his installation of an unapproved external load that degraded takeoff performance and flight characteristics resulting in a loss of airplane control during takeoff…Sep 13, 2023 · N109T · Substantial damageNTSB CEN23LA326Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Charles City, IAThe pilot’s improper preflight of the helicopter to ensure that it was within the loading and performance limitations that resulted in settling and impact with terrain during initial climb.Jul 26, 2023 · N4174L · Substantial damageNTSB ERA23FA280Accident · 5 fatalClass 3 · FieldFinal reportPiper PA-32R-300 · North Myrtle Beach, SCThe pilot’s loss of control during initial climb, which resulted in an aerodynamic stall and impact with terrain. Contributing to the accident was the pilot’s operation of the airplane above its maximum gross weight and near its aft center of gravity limit,…Jul 2, 2023 · N5524F · Destroyed
See all 152 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\", '01061035'))
  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.