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Ignition system, general

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NTSB finding · Aircraft › Aircraft power plant › Ignition system

All 18 cases14 in the probable cause
Cases
18
In the probable cause
14 (78%)
Fatal cases
1
NTSB code
01057400

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\", '01057400') 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\", '01057400'))
  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\", '01057400') 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 · 18

NTSB WPR24LA205Accident · Minor injuriesClass 3 · LimitedFinal reportReplica PA-12 Replica · Douglas, WYA loss of power due to fuel exhaustion as a result of the pilot’s failure to calibrate the fuel flow indicator.Jun 22, 2024 · N406Z · Substantial damageNTSB CEN24LA185Accident · Serious injuriesClass 3 · LimitedFinal reportTitan T51 · Novi, MIA failure of the electrical system, resulting in a loss of fuel injection and subsequent loss of engine power.May 12, 2024 · N260Y · Substantial damageNTSB WPR24LA060Accident · Minor injuriesClass 3 · LimitedFinal reportMooney M20J · Carlin, NVImproper spacing of the magneto’s breaker point contact assemblies, which led to a loss of engine ignition during cruise flight and resulted in a total loss of engine power.Dec 21, 2023 · N2073K · Substantial damageNTSB CEN23LA273Accident · No injuriesClass 3 · LimitedFinal reportBerkut 540 · Cedar Rapids, IAA partial loss of engine power during the test flight due to multiple ignition system anomalies.Jul 1, 2023 · N567JS · Substantial damageNTSB CEN22LA322Accident · No injuriesClass 3 · LimitedFinal reportAero Commander 112 · Granbury, TXThe loss of engine power due to metal contamination within the cylinder following poor maintenance.Jul 18, 2022 · N1181J · Substantial damageNTSB ERA21FA334Accident · 1 fatalClass 3 · FieldFinal reportNorth American SNJ-2 · Wilkes-Barre, PAA partial loss of engine power for undetermined reasons. Also causal was the pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for a forced landing following the loss of engine power, which resulted in an aerodynamic stall and…Aug 20, 2021 · N52900 · DestroyedNTSB CEN21LA109Accident · No injuriesClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Albany, TXThe pilot’s inadequate pretakeoff checks which resulted in the magneto switch (key) remaining in the OFF position during the takeoff sequence and initial climb and the right magneto grounding intermittently.Jan 9, 2021 · N322SH · Substantial damageNTSB WPR20LA116Accident · No injuriesClass 3 · LimitedFinal reportTL Ultralight Sro Stingsport · Hurricane, UTA total loss of engine power due to the failure of the ignition system as a result of foreign object damage.Mar 28, 2020 · N7997N · Substantial damageNTSB CEN19LA313Accident · No injuriesClass 3 · LimitedFinal reportJackson Velocity · Mack, COA propeller overspeed due to failure of the electronic ignition timing ring attachment screws, and a runway overrun during the subsequent forced landing.Sep 3, 2019 · N2XF · Substantial damageNTSB ERA17LA125Accident · Serious injuriesClass 2 · LimitedFinal reportGrob G120TP-A · Abbeville, ALThe flame-out of the engine due to a mis-set fuel control unit at the time of manufacture. Contributing to the accident was the pilots’ delayed recognition that the engine had flamed out, partially due to the operator’s requirement to disable the crew…Mar 8, 2017 · N196TP · Substantial damage
See all 18 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\", '01057400'))
  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.