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Wet surface

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NTSB finding · Environmental issues › Physical environment › Runway/land/takeoff/taxi surface

All 141 cases62 in the probable cause
Cases
141
In the probable cause
62 (44%)
Fatal cases
1
NTSB code
03023010

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\", '03023010') 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\", '03023010'))
  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\", '03023010') 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 · 141

NTSB CEN26LA170Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA 31P 350 · Ardmore, OKThe pilot’s failure to maintain control of the airplane while landing on a wet runway with a tailwind.Apr 17, 2026 · N9262Y · Substantial damageNTSB ERA26LA021Accident · No injuriesClass 4 · LimitedFinal reportCessna 140 · Plymouth, CTThe plot’s failure to account sufficiently for the decrease in the airplane’s takeoff performance due to the wet turf runway, which resulted in a collision with a log barrier and subsequent nose over after aborting the takeoff.Oct 11, 2025 · N2812N · Substantial damageNTSB CEN25LA351Accident · No injuriesClass 4 · LimitedFinal reportCirrus Design SR22 · Nora Springs, IAThe pilot’s improper decision-making for the attempted landing, which resulted in a runway overrun due to inadequate runway landing distance with a quartering tailwind. Contributing to the accident was the wet condition of the runway.Aug 28, 2025 · N45JN · Substantial damageNTSB ERA25LA251Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-22-135 · Elberta, ALPilot’s decision to take off from a wet and unmaintained field that was unsuitable for airplane operations, resulting in a loss of control and subsequent nose over. Contributing was the pilot’s self-induced pressure to complete the flight.Jun 27, 2025 · N3228B · Substantial damageNTSB 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 CEN25LA045Accident · No injuriesClass 4 · LimitedFinal reportCessna R182 · Crowley, LAThe pilot’s un-stabilized landing approach and high airspeed during the approach, that resulted in touchdown with insufficient runway remaining to stop the airplane.Nov 18, 2024 · N738PG · Substantial damageNTSB WPR25LA035Accident · No injuriesClass 4 · LimitedFinal reportCessna 182E · Priest River, IDThe pilot's failure to attain a proper touchdown point and his inability to stop the landing roll on a wet gras runway, which resulted in a collision with a tree.Nov 6, 2024 · N9207X · Substantial damageNTSB ERA24LA353Accident · No injuriesClass 4 · LimitedFinal reportGulfstream American AA-5B · Mohawk, NYThe pilot’s failure to maintain directional control during the landing roll in wet conditions, which resulted in a runway excursion and collision with a fence.Aug 20, 2024 · N4533F · Substantial damageNTSB CEN24LA265Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 180 · Le Roy, MIThe pilot’s failure to maintain control of the airplane while performing a go-around, which resulted in an inflight collision with trees.Jul 14, 2024 · N7827K · Substantial damageNTSB ANC24LA065Accident · No injuriesClass 4 · LimitedFinal reportBeech 65-B80 · Woleai Atoll, MicronesiaThe pilot's selection of an unsuitable takeoff area, resulting in a loss of directional control. Contributing to the accident was a flooded runway.Jul 12, 2024 · N44MA · Substantial damage
See all 141 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\", '03023010'))
  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.