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NTSB finding · Aircraft › Aircraft structures › Wing structure

All 11 cases6 in the probable cause
Cases
11
In the probable cause
6 (55%)
Fatal cases
1
NTSB code
01035730

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\", '01035730') 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\", '01035730'))
  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\", '01035730') 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 · 11

NTSB DCA25LA025Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737-9 · Houston, TXBrake application before all three landing gears were on the ground, which caused the failure of the right main landing gear tires and resulted in tire fragments impacting the fuselage.Oct 24, 2024 · N27515 · Substantial damageNTSB WPR23LA128Accident · Serious injuriesClass 3 · LimitedFinal reportJones Jay D Cassutt M 11 · Castroville, CAA failure of the outboard trailing edge rib in the left wing, which resulted in a separation of the left aileron and a loss of control.Mar 12, 2023 · N55XJ · Substantial damageNTSB WPR22LA183AccidentClass 4 · LimitedFinal reportPyka Pelican · Winters, CADelamination of the uncrewed aircraft systems’ right wing skin surfaces from the wing spar that resulted in a spin and impact with terrain.May 14, 2022 · N605PK · Substantial damageNTSB CEN15IA076Incident · No injuriesIncident investigationFinal reportCessna 182S · Springfield, ILThe improper installation of a doubler patch, which prevented the right flap from actuating and moving properly and led to the subsequent interference with the aileron.Dec 10, 2014 · N661SP · Minor damageNTSB ENG14IA016Incident · No injuriesIncident investigationFinal reportDouglas C 118A · Emmonak, AKThe fatigue failure of the lower wing skin due to aging mechanisms. Contributing to the failure were lower wing skin inspection procedures insufficient to identify the crack.Feb 25, 2014 · N351CE · Minor damageNTSB WPR12TA445Accident · No injuriesFinal reportBeech C90 · Boise, IDExcessive loading on the left wing, which occurred over a period of time. Contributing to the accident was maintenance personnel’s failure to adequately inspect and document the left wing damage.May 10, 2012 · N14CP · Substantial damageNTSB ERA12LA195Accident · No injuriesLimited investigationFinal reportPiper PA-36-300 · Americus, GAThe failure of maintenance personnel to properly secure a portion of the right wing leading edge, which resulted in the separation of the associated section of the leading edge during takeoff and the loss of directional control during the subsequent landing.Feb 25, 2012 · N59661 · Substantial damageNTSB WPR11LA459Accident · No injuriesLimited investigationFinal reportMcarthur Steen Skybolt · Greenleaf, IDStructural failure of the upper left wing during aerobatic flight.Sep 19, 2011 · N77VW · Substantial damageNTSB WPR11FA225Accident · 2 fatalField investigationFinal reportP&M Pegasus Quik 912S · Hanalei, HIThe pilot's continued operation of the aircraft with deteriorated wing fabric and his aggressive maneuvering at low altitude, which resulted in the right wing fabric’s failure during flight. Contributing to the accident was the pilot's loading of the aircraft…May 17, 2011 · N705PM · Substantial damageNTSB WPR09CA182Accident · No injuriesData collectionFinal reportCessna 172S · Snohomish, WAAn in-flight collision with a crow.Apr 4, 2009 · N4915F · Substantial damage
See all 11 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\", '01035730'))
  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.