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Fasteners

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NTSB finding · Aircraft › Fluids/misc hardware › Misc hardware

All 58 cases53 in the probable cause
Cases
58
In the probable cause
53 (91%)
Fatal cases
9
NTSB code
01071430

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\", '01071430') 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\", '01071430'))
  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\", '01071430') 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 · 58

NTSB 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 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 ERA24LA251Accident · Minor injuriesClass 4 · LimitedFinal reportWilliam Loren Noggle JA30 Superstol · Tennille, GAThe loss of elevator control during flight due to the elevator control rod and its hardware disconnecting from its installation area, which resulted in an uncontrolled descent into trees and terrain. Contributing to the accident was the pilot’s inadequate…Jun 8, 2024 · N719LN · Substantial damageNTSB CEN24FA212Accident · 1 fatalClass 3 · FieldFinal reportBeech V35A · Arvada, COA total loss of engine power due to oil starvation as a result of loose turbocharger oil line fittings.Jun 7, 2024 · N150WR · DestroyedNTSB ERA24LA185Accident · 1 fatalClass 3 · LimitedFinal reportBailey-Moyes Dragonfly · Groveland, FLThe pilot’s improper installation and inspection of the right lower wing strut attachment bolt, which resulted in the inflight failure of the right wing.Apr 19, 2024 · UNREG · Substantial damageNTSB ERA24LA109Accident · No injuriesClass 4 · LimitedFinal reportPiper PA23 · Louisville, KYThe failure of maintenance personnel to thoroughly inspect and repair the worn-out panel fasteners and fastener holes.Feb 1, 2024 · N1317P · Substantial damageNTSB WPR24LA051Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-28-180 · Mesa, AZA failure of the engine cowling right side latch pin and fasteners, which resulted in the partial separation of the engine cowling during flight.Dec 5, 2023 · N9166J · Substantial damageNTSB WPR24LA034Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 310 · Hayden, IDThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in a loss of control and subsequent stall during a precautionary landing. Contributing to the accident was the improper maintenance…Nov 13, 2023 · N86H · Substantial damageNTSB ERA23LA197Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 177RG · Crestview, FLThe total loss of engine power due to the loosening and separation of the No. 1 connecting rod cap nuts in flight, resulting in catastrophic internal engine damage. Contributing to the accident was the pilot/owner’s failure to comply with the engine…Apr 14, 2023 · N7542V · Substantial damage
See all 58 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\", '01071430'))
  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.