OpenAirDocs.org

Document/info production

Open the Markdown

NTSB finding · Organizational issues › Development › Manufacture/production

All 15 cases10 in the probable cause
Cases
15
In the probable cause
10 (67%)
Fatal cases
2
NTSB code
04013020

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\", '04013020') 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\", '04013020'))
  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\", '04013020') 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 · 15

NTSB ERA24LA099Accident · No injuriesClass 3 · LimitedFinal reportSwissdrones Operating SDO 50 V2 · Antioch, GAA partial loss of engine power due to a reduction of fuel flow for undetermined reasons. Contributing to the accident was the UAS manufacturer’s lack of instructions for a partial loss of engine power landing.Jan 18, 2024 · N780PA · Substantial damageNTSB DCA22MA193Accident · 10 fatalClass 1 · MajorFinal reportDehavilland DHC-3 · Freeland, WAThe in-flight unthreading of the clamp nut from the horizontal stabilizer trim actuator barrel due to a missing lock ring, which resulted in the horizontal stabilizer moving to an extreme trailing-edge-down position rendering the airplane’s pitch…Sep 4, 2022 · N725TH · DestroyedNTSB ENG21LA011Incident · No injuriesClass 3 · LimitedFinal reportCessna 501 · Opa Locka, FLAn uncontained left engine failure caused by a low cycle fatigue crack that originated from a manufacturing machining groove on the high pressure compressor impeller aft face. Contributing to the incident was service bulletin borescope inspection criteria…Dec 31, 2020 · N75TL · Minor damageNTSB DCA18LA163Accident · No injuriesClass 3 · LimitedFinal reportAirbus A330 323 · Atlanta, GAThe flight crew’s delayed landing after an in-flight engine fire, which reignited after both fire bottles were discharged and resulted in substantial damage to an engine pylon. Contributing to the delayed landing was likely the flight crew’s perception that…Apr 18, 2018 · N806NW · Substantial damageNTSB CEN17LA156Accident · No injuriesLimited investigationFinal reportLoomis Xenon 4 · Knoxville, IAA partial loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the failure of the owners to obtain proper materials regarding the operation and maintenance of the engine.Apr 17, 2017 · N912XV · Substantial damageNTSB ANC17FA009Accident · 1 fatalClass 3 · FieldFinal reportBellanca 7GCBC · Fairbanks, AKThe pilot’s decision to operate the airplane at an altitude too low to allow for recovery from an intentional aerodynamic stall. Contributing to the accident was the pilot’s lack of knowledge of the stall performance characteristics of the airplane modified…Dec 7, 2016 · N88452 · Substantial damageNTSB WPR11LA080Accident · Serious injuriesLimited investigationFinal reportSchaefer Kitfox 4 · Glendale, AZThe pilot's failure to recognize the onset of and to prevent an aerodynamic stall at low altitude. Contributing to the accident were the manufacturer’s conflicting guidance about the power setting for takeoff and the pilot’s decision to conduct a…Dec 23, 2010 · N95FT · Substantial damageNTSB ERA10LA450Accident · No injuriesLimited investigationFinal reportAir Tractor AT402 · Pompano Beach, FLThe pilot's delayed decision to abort the takeoff, which resulted in a runway overrun and a subsequent collision with obstacles and terrain. Contributing to the accident was the airplane's high gross weight.Aug 28, 2010 · N4172U · Substantial damageNTSB ERA10LA357Accident · No injuriesLimited investigationFinal reportBeech 58 · LaGrange, GAThe pilot not allowing sufficient time for fuel spill vapors to dissipate before starting the engine. Contributing to the accident was the inadequate maintenance of the fuel cap.Jul 11, 2010 · N405RW · Substantial damageNTSB WPR10LA276Accident · Serious injuriesLimited investigationFinal reportCzech Aircraft Works Sportcruiser · San Diego, CAThe inadvertent opening of the aircraft canopy during the takeoff climb, which distracted the pilot and resulted in his failure to maintain aircraft control. Contributing to the accident was a lack of guidance in the manufacturer's pilot operating handbook…Jun 2, 2010 · N334BB · Substantial damage
See all 15 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\", '04013020'))
  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.