OpenAirDocs.org

Off-field or emergency landing

Open the Markdown

NTSB defining event · CICTT: Other

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

All 23 cases3,365 anywhere in the sequence
Defining event in
23 cases
In the sequence of
3,365 cases
Fatal cases
2
NTSB code
440

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\" = '440' 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
  • Enroute9
  • Maneuvering3
  • Enroute-cruise3
  • Landing2
  • Approach-VFR pattern final2
  • Emergency descent1
  • Landing-landing roll1
  • Approach-VFR pattern base1
  • Maneuvering-low-alt flying1
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\" = '440' 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 · 23

NTSB ERA26LA127Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-28-151 · Arno, TNOn February 24, 2026, about 1107 central standard time, a Piper PA-28-151, N85RW, was substantially damaged when it was involved in an accident near Arno, Tennessee. The pilot was not injured. The airplane was operated as a 14 Code of Federal Regulations Part…Feb 24, 2026 · N85RW · Substantial damageNTSB WPR25LA292Accident · Minor injuriesClass 3 · LimitedPreliminary reportCessna 182N · Fallbrook, CAOn September 23, 2025, about 1400 Pacific daylight time, N766EE, a Cessna 182N, was substantially damaged when it was involved in an accident near Fallbrook, California. The pilot received minor injuries. The airplane was operated as a Title 14 Code of…Sep 23, 2025 · N766EE · Substantial damageNTSB ERA25LA350Accident · Minor injuriesClass 3 · LimitedPreliminary reportPiper PA-28-181 · Astatula, FLOn September 17, 2025 at 1000 eastern daylight time, a Piper PA-28-181 100i, N580JA, was substantially damaged when it was involved in an accident near Astatula, Florida. The student pilot sustained minor injuries. The airplane was operated as a 14 Code of…Sep 17, 2025 · N580JA · Substantial damageNTSB WPR25LA265Accident · No injuriesClass 3 · LimitedPreliminary reportCessna 120 · Taylor, AZOn August 24, 2025, about 0711 mountain daylight time, a Cessna 120, N3151N, was substantially damaged when it was involved in an accident near Taylor, Arizona. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal…Aug 24, 2025 · N3151N · Substantial damageNTSB WPR25LA163Accident · No injuriesClass 3 · LimitedPreliminary reportRans S20 · Fairfield, UTOn May 27, 2025, about 1330 mountain daylight time, an experimental amateur-built RANS S20 Raven, N327KM, was substantially damaged when it was involved in an accident near Fairfield, Utah. The pilot was not injured. The airplane was operated as a Title 14…May 27, 2025 · N327KM · Substantial damageNTSB GAA25WA162Accident · Minor injuriesClass 5 · ForeignCessna 150 · Ucharpi, IndiaMar 31, 2025 · VT-PBANTSB GAA24WA053AccidentClass 5 · ForeignAir Tractor AT301 · Orihueca, ColombiaDec 9, 2023 · HK4952 · Substantial damageNTSB GAA24WA001Accident · No injuriesClass 3 · ForeignRobinson R44 · Vamdrup, DenmarkOct 4, 2023 · OY-HFS · Substantial damageNTSB GAA23WA251Accident · No injuriesClass 5 · ForeignRobinson R44 · Manta, EcuadorSep 8, 2023 · HC-CPV · Substantial damageNTSB GAA23WA176Accident · Minor injuriesClass 5 · ForeignCessna 182 · Jelenia Góra, PolandJun 25, 2023 · D-EDYP · Substantial damage
See all 23 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\" = '440')
  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.