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NTSB finding section · Aircraft › Fluids/misc hardware

All 140 cases122 in the probable cause
Cases
140
In the probable cause
122 (87%)
Fatal cases
23
NTSB code
010714

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\", '010714') 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.

Subsections · 4

Query with SQL
duckdb -csv -c "SELECT left(f.\"findingCode\", 8) AS code, max(f.\"tier4Name\") AS name,
    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
  WHERE starts_with(f.\"findingCode\", '010714') AND f.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY 1
  ORDER BY cases DESC, code"

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\", '010714'))
  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\", '010714') 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 · 140

NTSB WPR26LA207Accident · No injuriesClass 4 · LimitedFinal reportBell 47G-2 · Mettler, CAThe pilot's failure to ensure the loading hose had been disconnected before takeoff, which resulted in an interrupted takeoff and subsequent loss of control. Contributing to the accident was the ground loader's failure to disconnect the hose before…Jun 1, 2026 · N88755 · Substantial damageNTSB ERA26LA176Accident · No injuriesClass 3 · LimitedFinal reportIcon A5 · Levittown, PRAn oil line separation at a barbed fitting in an experimental airplane, which resulted in a total loss of engine power due to oil starvation.Apr 15, 2026 · N558BA · Substantial damageNTSB ERA26LA193Accident · No injuriesClass 4 · LimitedFinal reportBell UH1 · Enterprise, ALThe in-flight separation of a turn lock fastener stud, which resulted in substantial damage to one tail rotor blade.Apr 4, 2026 · N75140 · Substantial damageNTSB CEN26LA131Accident · No injuriesClass 4 · LimitedFinal reportQuad City Challenger · Van Burensburg, ILPropeller separation due to failure of the propeller attachment bolts.Feb 28, 2026 · UNREG · Substantial damageNTSB CEN26LA069Accident · No injuriesClass 4 · LimitedFinal reportCessna 172D · Post, TXThe pilot’s failure to see the blockage in the fuel tank vent tube during the preflight inspection which resulted in the loss of engine power due to fuel starvation. Contributing to the accident was the deterioration of the right fuel cap vent to the point…Dec 19, 2025 · N2536U · Substantial damageNTSB ERA25FA185Accident · 1 fatalClass 3 · FieldFinal reportMX Aircraft Tech PTY MXS · Hampton, VAA counterweight plug that loosened during the accident flight, jammed the elevator, and resulted in loss of control during landing.Apr 24, 2025 · N530RH · Substantial damageNTSB WPR25LA046Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28R-200 · Gillette, WYA loss of engine power due to fuel starvation resulting from a loose B-nut at the engine-driven fuel-pump inlet.Nov 24, 2024 · N55641 · 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 ANC24FA102Accident · 1 fatalClass 3 · FieldFinal reportCessna 206 · Chalkyitsik, AKA loss of engine power due to water-contaminated fuel as a result of the pilot’s inadequate preflight inspection. Contributing to the accident was the operator’s failure to ensure replacement filters were available for use during refueling operations.Sep 24, 2024 · N8255Q · Substantial damageNTSB ANC24LA097Accident · No injuriesClass 4 · LimitedFinal reportStinson 108-3 · Lime Village, AKThe pilot's inadequate preflight inspection and fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent forced landing in tree-covered terrain.Sep 14, 2024 · N691E · Substantial damage
See all 140 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\", '010714'))
  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.