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NTSB finding · Aircraft › Aircraft systems › Landing gear system

All 19 cases16 in the probable cause
Cases
19
In the probable cause
16 (84%)
Fatal cases
0
NTSB code
01023245

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\", '01023245') 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\", '01023245'))
  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\", '01023245') 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 · 19

NTSB CEN26LA105Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 441 · Pflugerville, TXThe pilot’s failure to maintain airplane control during a rejected takeoff due to a flat nose wheel tire which resulted in a runway excursion and impact with terrain. Contributing to the accident was pilot fatigue which delayed the rejected takeoff.Jan 31, 2026 · N441EC · Substantial damageNTSB CEN25LA174Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-44-180 · Saint James, MNThe failure of the left main landing gear tire casing and tube due to excessive wear which resulted in a loss of directional control during the landing.May 10, 2025 · N453MK · Substantial damageNTSB WPR25LA059Accident · No injuriesClass 4 · LimitedFinal reportBoeing A75N1(PT17) · El Cajon, CAThe pilot’s inability to maintain directional control during landing with a flat tire.Dec 8, 2024 · N9199R · Substantial damageNTSB CEN24LA227Accident · Minor injuriesClass 4 · LimitedFinal reportBeech D55 · Colorado Springs, COThe deflated right main landing gear tire due to a sidewall puncture made by an unknown object, which led to the pilot’s loss of directional control and the landing gear collapse during landing roll.Jun 11, 2024 · N321N · Substantial damageNTSB CEN23LA222Accident · No injuriesClass 4 · LimitedFinal reportPitts S-2S · Garden Plain, KSThe pilot’s inability to maintain directional control during landing roll due to a flat tire.Jun 3, 2023 · N1PW · Substantial damageNTSB ERA21LA251Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24 · Monticello, NYThe pilot’s inadequate preflight inspection which resulted in a failure of the right main landing gear tire on landing rollout, a subsequent loss of directional control, and landing gear collapse.Jun 5, 2021 · N5779P · Substantial damageNTSB WPR20CA298Accident · No injuriesClass 4 · Data collectionFinal reportCessna 208 · Whitmore, AZA loss of directional control during landing due to a flat main landing gear tire, which resulted in a lateral runway excursion and impact with terrain.Sep 7, 2020 · N186GC · Substantial damageNTSB WPR15LA148Accident · No injuriesLimited investigationFinal reportCessna 206H · Honolulu, HIA blown nose landing gear tire during landing, which resulted in the pilot’s inability to maintain directional control.Apr 4, 2015 · N245RB · Substantial damageNTSB WPR15CA026Accident · No injuriesData collectionFinal reportRockwell 690B · Mesa, AZThe failure of the nose gear tire, which resulted in the vibration of the nose landing gear and subsequent fire to the tire and forward section of the fuselage structure.Oct 23, 2014 · N130TT · Substantial damageNTSB ERA14CA463Accident · No injuriesData collectionFinal reportBeech D55 · Hazleton, PAThe brake application for unknown reasons resulting in rupture of the left main landing gear tire and tube, and subsequent loss of directional control.Sep 27, 2014 · N222JJ · Substantial damage
See all 19 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\", '01023245'))
  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.