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Manufacture/production, general

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NTSB finding · Organizational issues › Development › Manufacture/production

All 17 cases16 in the probable cause
Cases
17
In the probable cause
16 (94%)
Fatal cases
3
NTSB code
04013000

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\", '04013000') 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\", '04013000'))
  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\", '04013000') 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 · 17

NTSB ERA24LA163Accident · Serious injuriesClass 3 · LimitedFinal reportEvektor-Aerotechnik A S Harmony LSA · Seffner, FLThe improper installation of the fuel line that connected the fuel pump to the four-way distributor, which resulted in fuel starvation when the line became disconnected.Apr 4, 2024 · N469JA · Substantial damageNTSB DCA24LA330IncidentClass 2 · LimitedFinal reportBoeing 737-8 · Kenner, LAA partial loss of engine power due to bird ingestion in the No. 1 (left) engine, which resulted in the activation of the load reduction device to prevent vibration. The load reduction device activation resulted in smoke and fumes entering the cockpit.Dec 20, 2023 · N8830Q · Minor damageNTSB CEN23LA390Accident · No injuriesClass 3 · LimitedFinal reportZlin Aviation S R O Savage Norden · Cabot, ARThe airplane manufacturer’s routing of the fuel pump wiring next to the engine’s turbocharger and exhaust, which thermally damaged the wiring and resulted in a malfunction of the fuel delivery system and a total loss of engine power.Aug 30, 2023 · N7373 · Substantial damageNTSB WPR23LA255Accident · Serious injuriesClass 3 · LimitedFinal reportAvia Stroitel AC-5M · North Plains, ORThe pilot’s failure to maintain control of the motor glider, which resulted in an inflight overstress separation of the right wing during a high-speed, high-wing-load spiral dive recovery. Contributing to the accident was the inadequately manufactured wing…Jul 5, 2023 · N40233 · Substantial damageNTSB CEN19LA159Accident · No injuriesClass 3 · LimitedFinal reportLancair LC41 · Cleburne, TXA total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect.May 30, 2019 · N2514F · Substantial damageNTSB ENG19IA008IncidentClass 3 · IncidentFinal reportAirbus A220 · Busan, South KoreaThe manufacturer’s inadequate cleaning of the crucible before melting the nickel alloy used in casting the low pressure turbine stage 3 blades that resulted in a casting anomaly from where an intergranular crack occurred became the origin of a fatigue crack…Dec 26, 2018 · HL8314 · No damageNTSB WPR15LA184Accident · No injuriesLimited investigationFinal reportEclipse EA500 · Sacramento, CAA manufacturing defect that resulted in fatigue failure of the left main landing gear trunnion.Jun 12, 2015 · N508JA · Substantial damageNTSB WPR15LA109Accident · No injuriesLimited investigationFinal reportBell/Garlick UH 1H · Shelton, WAThe fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly.Feb 19, 2015 · N166DR · Substantial damageNTSB WPR14LA046Accident · No injuriesLimited investigationFinal reportRovey Jason H RV-8 · Wickenburg, AZThe fatigue failure of a propeller pitch change pin due to excessive shot peening of the pin’s surface during the manufacturing process.Nov 2, 2013 · N391V · Substantial damageNTSB ERA13LA262Accident · Minor injuriesLimited investigationFinal reportCessna 182P · Brevard, NCThe cylinder manufacturer's misalignment of the exhaust valve guides in the No. 2 cylinder during manufacture, which resulted in the exhaust valve sticking and the pushrod breaking and the subsequent total loss of engine power.May 30, 2013 · N6525M · Substantial damage
See all 17 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\", '04013000'))
  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.