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NTSB defining event · CICTT: Abnormal Runway Contact

CICTT occurrence categories (PDF)CICTT phases of flight (PDF)

All 1,247 cases2,102 anywhere in the sequence
Defining event in
1,247 cases
In the sequence of
2,102 cases
Fatal cases
12
NTSB code
092

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 it was the defining event; in gray, cases where it came elsewhere in the sequence. The map shows the cases where it was the defining event. Events are coded with the final report, so the latest years are incomplete.

Cases per year

2008Defining eventElsewhere in the sequence2026

Where

Open the map
Query with SQL
duckdb -csv -c "SELECT year(c.\"eventDate\") AS year, count(DISTINCT e.case_mkey) AS cases,
    count(DISTINCT e.case_mkey) FILTER (WHERE e.\"isDefiningEvent\") AS defining
  FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = e.case_mkey
  WHERE e.\"tier2Number\" = '092' AND e.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")
  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 these cases

Phase of flight
  • Landing-flare/touchdown826
  • Landing336
  • Autorotation85
In the probable cause
Aircraft models

Aircraft matched to the registry by N-number and date.

Query with SQL
duckdb -csv -c "WITH defining AS (SELECT * FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"tier2Number\" = '092' AND \"isDefiningEvent\")
  SELECT * FROM (
  SELECT 'Phase of flight' AS kind, e.\"tier1Number\" AS code, max(e.\"eventTier1Name\") AS name, count(DISTINCT e.case_mkey) AS cases
  FROM defining e
  GROUP BY ALL
  UNION ALL
  SELECT 'Finding in the probable cause', left(f.\"findingCode\", 8), max(f.\"tier4Name\"), count(DISTINCT f.case_mkey)
  FROM defining e JOIN 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f ON f.case_mkey = e.case_mkey AND f.aircrafts_position = e.aircrafts_position AND f.\"inProbableCause\"
  WHERE f.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY ALL
  UNION ALL
  SELECT 'Aircraft model', a.aircraft_model_code, any_value(concat_ws(' ', m.manufacturer, m.model)), count(DISTINCT e.case_mkey)
  FROM defining e JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = e.case_mkey AND a.position = e.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
  )
  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 · 1,247

NTSB ERA27LA014Accident · No injuriesLimited investigationInvestigation openTextron 172S · Jacksonville, FLOct 16, 2026 · N234EPNTSB ERA27LA018Accident · No injuriesClass 4 · LimitedInvestigation openPiper J3C-65 · Limington, MEOct 10, 2026 · N6340HNTSB CEN27LA008Accident · No injuriesClass 4 · LimitedInvestigation openCessna 175A · Hastings, MIOct 8, 2026 · N6741E · Substantial damageNTSB CEN27LA007Accident · No injuriesClass 4 · LimitedInvestigation openKitfox III · Ward, AROct 7, 2026 · N940J · Substantial damageNTSB WPR26LA368Accident · No injuriesClass 4 · LimitedInvestigation openGronberger Sergio A Sportsman GS-2 · Lake Goodwin, WASep 30, 2026 · N360ET · Substantial damageNTSB ERA26LA351Accident · No injuriesClass 4 · LimitedInvestigation openCessna 182S · St. Petersburg, FLSep 25, 2026 · N9539L · Substantial damageNTSB ERA26LA353Accident · No injuriesClass 4 · LimitedInvestigation openRoberts GS-2 Sportsman · Kerrtown, PASep 24, 2026 · N390KC · Substantial damageNTSB WPR26LA365Accident · No injuriesClass 4 · LimitedInvestigation openCessna 172R · Ho'olehua, HISep 19, 2026 · N429ES · Substantial damageNTSB ERA26LA352Accident · No injuriesClass 4 · LimitedInvestigation openHart Frank RV-8A · Sanford, NCSep 19, 2026 · N900PP · Substantial damageNTSB WPR26LA339Accident · No injuriesClass 4 · LimitedInvestigation openCirrus Design SR22T · Santa Teresa, NMSep 10, 2026 · N615LT · Substantial damage
See all 1,247 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 e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.\"isDefiningEvent\" AND e.\"tier2Number\" = '092')
  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.