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NTSB finding · Personnel issues › Task performance › Maintenance

All 99 cases84 in the probable cause
Cases
99
In the probable cause
84 (85%)
Fatal cases
16
NTSB code
02062015

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\", '02062015') 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\", '02062015'))
  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\", '02062015') 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 · 99

NTSB ERA25LA204Accident · Minor injuriesClass 3 · LimitedFinal reportEurocopter Deutschland MBB-BK 117 C-1 · Fort Washington, PAMaintenance personnel’s failure to identify and replace damaged rivet nuts at the air conditioning louver assembly, which resulted in the separation of the louver assembly from the helicopter, the louver assembly’s impact with the tail rotor, and subsequent…May 19, 2025 · N117NC · Substantial damageNTSB ANC25LA030Accident · No injuriesClass 3 · LimitedFinal reportCessna A185F · Skwentna, AKMaintenance personnel’s reuse of worn hardware during the installation of the landing gear assembly and the hardware’s failure and subsequent separation of the gear leg from the landing gear box assembly during taxi.Mar 7, 2025 · N1718R · Substantial damageNTSB CEN25LA093Accident · Minor injuriesClass 3 · LimitedFinal reportRobinson Helicopter R22 Beta · Spearman, TXImproperly torqued intake manifold bolts that allowed unmetered air to enter the engine, resulting in an overly lean fuel-air mixture, eventual failure of the No. 3 cylinder intake valve, and a total loss of engine power.Feb 7, 2025 · N7191B · Substantial damageNTSB CEN25LA018Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-32R-301 · Van, TXThe mechanic’s improper maintenance of the engine’s air induction scat duct, which collapsed during the flight and resulted in a loss of engine power.Oct 17, 2024 · N81481 · Substantial damageNTSB ERA24LA375Accident · No injuriesClass 3 · LimitedFinal reportAir Tractor AT-802 · Hickory Valley, TNA partial loss of engine power due to a leak in the fuel control unit bellows, which resulted in the fuel valve moving to minimum fuel flow.Sep 10, 2024 · N802JF · Substantial damageNTSB WPR24LA121Accident · No injuriesClass 3 · LimitedFinal reportKitfox Series 5 · Yucca Grove, CAThe pilot’s improper repair of the oil sump, which resulted in a loss of oil pressure and collision with terrain during a precautionary landing.Apr 5, 2024 · N743JT · Substantial damageNTSB CEN24LA145Accident · Minor injuriesClass 3 · LimitedFinal reportMooney M20E · Alpine, ARThe improper maintenance of the cabin air and exhaust system which resulted in a cracked exhaust pipe and damaged cabin air tubing, and the subsequent elevated carbon monoxide levels in the cockpit and a forced landing to unsuitable terrain after the pilot…Apr 2, 2024 · N86UM · Substantial damageNTSB WPR24FA056Accident · 1 fatalClass 3 · FieldFinal reportVans RV8 · Corona, CAFuel contamination from the pilot’s improper application of a sealant to the fuel tank, which resulted in a partial loss of engine power on takeoff.Dec 16, 2023 · N6948L · Substantial damageNTSB ERA23FA382Accident · 1 fatalClass 3 · FieldFinal reportSmith William S Smith Cozy Mark IV · Cullman, ALThe pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was the pilot/owner’s improper installation of engine…Sep 29, 2023 · N95SF · Substantial damageNTSB WPR23FA351Accident · 1 fatalClass 3 · FieldFinal reportGolden Circle T Bird · Arlington, WAA failure of the forward left wing spar due to an improper repair, which resulted in an inflight separation of the left wing. Contributing to the accident was improper maintenance by splicing the wing spar.Sep 22, 2023 · UNREG · Substantial damage
See all 99 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\", '02062015'))
  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.