Snow/ice

NTSB finding · Environmental issues › Physical environment › Object/animal/substance

Cases
67
In the probable cause
26 (39%)
Fatal cases
0
NTSB code
03022060

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
Cases with Snow/ice per year: 67 cases
20083
20093
20103
20112
20121
20131
201411
20152
20162
20177
20185
20199
20207
20213
20221
20232
20254
20261
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\", '03022060') 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

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\", '03022060'))
  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\", '03022060') 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 CEN26LA121Accident · No injuriesClass 4 · LimitedFinal reportCessna 140 · Antigo, WIThe pilot receiving instruction’s failure to maintain directional control during the landing. Contributing to the accident was the flight instructor’s delayed remedial action.Feb 16, 2026 · N2221V · Substantial damageNTSB ANC26LA005Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-350 · Eek, AKThe pilot’s loss of directional control when the airplane encountered snow and ice on the runway while landing at night in gusting crosswind conditions.Nov 17, 2025 · N4112D · Substantial damageNTSB WPR25LA106Accident · No injuriesClass 4 · LimitedFinal reportAviat A-1 · Heber City, UTThe pilot’s loss of directional control during landing, which resulted in a collision with a snowbank.Feb 27, 2025 · N345HU · Substantial damageNTSB WPR25LA104Accident · No injuriesClass 4 · LimitedFinal reportCessna 180A · Waterville, WAThe pilot’s failure to maintain directional control during landing roll.Feb 20, 2025 · N7792A · Substantial damageNTSB WPR25LA074Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Red Rock, MTThe pilot's failure to maintain directional control during takeoff, which resulted in an impact with deep snow and vegetation.Jan 6, 2025 · N4644Y · Substantial damageNTSB WPR23LA106Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22 · Sandpoint, IDThe pilot’s failure to maintain directional control during landing and subsequent failure to maintain clearance from a snow berm during a go around.Jan 30, 2023 · N1791P · Substantial damageNTSB WPR23LA090Accident · No injuriesClass 4 · LimitedFinal reportMaule MX-7-160 · Minidoka, IDThe pilot’s failure to maintain control during landing on a contaminated runway.Jan 16, 2023 · N30737 · Substantial damageNTSB WPR23LA070Accident · Minor injuriesClass 4 · LimitedFinal reportVans RV6 · Afton, WYThe pilot’s failure to maintain control during landing on a contaminated runway.Dec 18, 2022 · N78HJ · Substantial damageNTSB ANC21LA030Accident · No injuriesClass 4 · LimitedFinal reportBeech C-99 · Chignik Lagoon, AKThe pilot’s failure to visually inspect the runway condition before landing, which resulted in a collision with an ice chunk and main landing gear separation during landing.Apr 16, 2021 · N991AK · Substantial damageNTSB CEN21LA159Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-12 · Erie, COThe pilot’s failure to maintain directional control during a full-stop landing, resulting in a runway excursion and impact with a snow berm.Mar 17, 2021 · N2849M · 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\", '03022060'))
  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.