NTSB investigations: Continental IO-520 series, TX

6 cases on aircraft whose registry engine model is Continental IO-520 series, where the first occurrence was “In flight encounter with weather”. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19832026

NTSB investigations: Continental IO-520 series, TX per year, 1983–2026: 6 cases
1983	1
1989	2
2004	2
2006	1

Where

Open the map

Latest cases

Query with SQL

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."eventStateOrRegion" = 'TX' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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.\"eventStateOrRegion\" = 'TX' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 240))
  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.

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."eventStateOrRegion" = 'TX' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 240))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB DFW06LA073Accident · No injuriesLimited investigationFinal reportBeech V35 · San Antonio, TXThe pilot's loss of control while on approach to the runway. Contributing factors were the downdraft and the lack of suitable terrain for the off-airport landing.Feb 20, 2006 · N510LM · Substantial damage NTSB FTW04FA079Accident · 1 fatalField investigationFinal reportCessna 210N · Valley Spring, TXThe pilot's continued flight into known adverse weather and failure to maintain control of the airplane while maneuvering in instrument meteorological conditions, due to spatial disorientation.Feb 22, 2004 · N6175Y · Destroyed NTSB FTW04FA052Accident · 2 fatalField investigationFinal reportBellanca 17-30A · Dallas, TXThe failure of flight/navigation instruments while in instrument meteorological conditions (in-cloud flight and low ceilings) resulting in spatial disorientation. A contributing factors was the prevaling instrument meteorological conditions (low ceiling and…Jan 1, 2004 · N4104B · Destroyed NTSB FTW89FA151Accident · 1 fatalField investigationFinal reportBellanca 17-30A · Junction, TXContinued VFR flight into instrument meteorological conditions (IMC) by the pilot, which resulted in his failure to maintain control of the aircraft due to spatial disorientation. The weather conditions and his self-induced pressure were factors.Apr 17, 1989 · N8785V · Destroyed NTSB FTW89LA057Accident · Minor injuriesLimited investigationFinal reportCessna U206 · San Angelo, TXFailure of the pilot to maintain adequate altitude during continued flight into known adverse weather. The weather conditions and dark night were contributing factors.Feb 3, 1989 · N8096Z · Substantial damage NTSB FTW84FA083Accident · 2 fatalField investigationFinal reportBellanca 17-30A · Hebbronville, TXThe flt proceeded without incident until the plt contacted houston ARTCC. The plt requested the destination wx & was told that the entire area was IFR. The closest arpt reporting VFR conditions was at mcallen, TX, aprx 80 mi southeast. The plt then advised…Dec 3, 1983 · N4097B · Destroyed