NTSB investigations: Continental IO-520 series, MI

6 cases on aircraft whose registry engine model is Continental IO-520 series, where the first occurrence was “Loss of engine power”. 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

19872026

NTSB investigations: Continental IO-520 series, MI per year, 1987–2026: 6 cases
1987	1
1994	1
1997	1
2001	1
2002	1
2003	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" = 'MI' 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" = 350)) 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\" = 'MI' 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\" = 350))
  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" = 'MI' 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" = 350))
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 CHI04LA023Accident · No injuriesLimited investigationFinal reportCessna A185E · Cedarville, MIA loss of engine power for undetermined reasons. A factor associated with the accident was the rough terrain on which the airplane was landed.Oct 14, 2003 · N3399L · Substantial damage NTSB CHI02LA188Accident · Minor injuriesLimited investigationFinal reportCessna 310R · Jackson, MIThe pilot's improper management of the fuel system, including his failure to reposition the fuel selectors to the main fuel tanks prior to landing, as directed in the pilot operating handbook. Additional causes to the accident were the pilot not maintaining…Jul 11, 2002 · N5061J · Substantial damage NTSB CHI01LA225Accident · Minor injuriesLimited investigationFinal reportCessna U206G · Freemont, MIThe broken throttle cable during cruise flight and the pilot's inadequate flare during the forced landing attempt. Factors relating to this accident were the low airspeed during the forced landing attempt and the short, corn stubble field.Jul 20, 2001 · N756DM · Substantial damage NTSB CHI97LA241Accident · No injuriesLimited investigationFinal reportBellanca 17-30A · Eagle, MIthe pilot's inaccurate fuel consumption calculations, his decision to switch fuel tanks too late, and fuel starvation.Aug 2, 1997 · N8237R · Substantial damage NTSB CHI94LA249Accident · Serious injuriesLimited investigationFinal reportBellanca 17-30 · Waterford, MIundetermined.Jul 29, 1994 · N93572 · Substantial damage NTSB CHI87DEC04Accident · 2 fatalFinal reportBeech S35 · Pontiac, MIAcft was making a low pass about 200 ft AGL over rwy 27L to allow ATCT personnel to inspect landing gear position after reporting landing gear difficulties. After twr personnel informed the plt that the gear appeared to be down, the plt requested to land on…Jul 4, 1987 · N9011S · Destroyed