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Conditions/weather/phenomena, general

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NTSB finding section · Environmental issues › Conditions/weather/phenomena

All 57 cases31 in the probable cause
Cases
57
In the probable cause
31 (54%)
Fatal cases
12
NTSB code
030300

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\", '030300') 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.

Subsections · 1

Query with SQL
duckdb -csv -c "SELECT left(f.\"findingCode\", 8) AS code, max(f.\"tier4Name\") AS name,
    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
  WHERE starts_with(f.\"findingCode\", '030300') AND f.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY 1
  ORDER BY cases DESC, code"

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\", '030300'))
  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\", '030300') 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 · 57

NTSB DCA26LA047Accident · No injuriesClass 4 · LimitedFinal reportEmbraer S A ERJ 170-200 LR · Chicago, ILUnited Airlines flight crew’s failure to maintain adequate clearance from the parked Envoy Airlines airplane while taxiing in winter weather conditions.Nov 29, 2025 · N317TB · 2 aircraft · Substantial damageNTSB CEN25LA188Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-18 · Vega, TXThe airplane’s inadvertent encounter with a localized low boundary layer, which caused a wind shift, and a gusting tailwind during final approach, that resulted in the pilot deciding to impact a wind cone and a subsequent impact with terrain. Contributing was…May 26, 2025 · N7175D · Substantial damageNTSB ANC25LA021Accident · Minor injuriesClass 3 · LimitedFinal reportGippsland GA-8 · Lihue, HIThe failure of the right landing gear leg due to a fatigue crack, which resulted in its separation from the airplane during taxi. Contributing to the accident, was the mechanic’s inadequate inspection of the landing gear leg during the last maintenance…Feb 28, 2025 · N699AV · Substantial damageNTSB DCA25LA117Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737-832 · Seattle, WAThe Japan Airlines flight crew’s failure to maintain adequate clearance from the parked Delta Air Lines aircraft while taxiing in congested ramp conditions.Feb 5, 2025 · N3737C · 2 aircraft · Substantial damageNTSB WPR25LA053Accident · No injuriesClass 3 · LimitedFinal reportGulfstream AM Corp Comm Div 690D · Spokane, WAA partial loss of engine(s) power due ice ingestion.Dec 2, 2024 · N29GA · Substantial damageNTSB WPR24LA303Accident · No injuriesClass 4 · LimitedFinal reportCessna T206H · Big Bend-Gold Bar, WAThe pilot’s improper flare, which resulted in a hard landing.Aug 30, 2024 · N379ME · Substantial damageNTSB CEN24LA162Accident · No injuriesClass 3 · LimitedFinal reportAmerican Champion 7ECA · Longview, TXThe rudder post’s failure due to corrosion fatigue. Contributing to the accident were the misalignment of the rudder hinge components, which produced mechanical binding and elevated localized stress, and a compromised the protective coating, which allowed…Apr 12, 2024 · N793L · Substantial damageNTSB ERA24FA110Accident · 2 fatalClass 3 · FieldFinal reportBombardier CL-600-2B16 · Naples, FLCorrosion of both engines’ variable geometry (VG) system components, which led to their operation in an off-schedule position and resulted in near-simultaneous sub-idle rotating compressor stalls on approach, subsequent loss of thrust in both engines, and an…Feb 9, 2024 · N823KD · DestroyedNTSB WPR24FA052Accident · Serious injuriesClass 3 · FieldFinal reportRemos Remos GX · Taylor, AZThe pilot’s decision to attempt takeoff with frost covering the airplane’s wings, which led to an exceedance of the airplane’s critical angle of attack and an aerodynamic stall.Dec 6, 2023 · N449RA · Substantial damageNTSB WPR23LA209Accident · Minor injuriesClass 4 · LimitedFinal reportPipistrel Doo Ajdovscina Virus SW · Santa Fe, NMAn encounter with a downdraft during landing that resulted in a hard landing and the pilot’s loss of control.May 30, 2023 · N69PV · Substantial damage
See all 57 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\", '030300'))
  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.