NTSB investigations: Continental IO-520 series, AL

6 cases on aircraft whose registry engine model is Continental IO-520 series, where the first occurrence was “In flight collision with object”. 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, AL per year, 1983–2026: 6 cases
1983	1
1986	1
1992	1
1993	1
1995	1
1998	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" = 'AL' 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" = 220)) 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\" = 'AL' 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\" = 220))
  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" = 'AL' 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" = 220))
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 ATL99LA002Accident · Minor injuriesLimited investigationFinal reportCessna 188B · Tellasse, ALThe pilot's failure to maintain clearance from a utility line while conducting a swath run.Oct 2, 1998 · N4832R · Substantial damage NTSB MIA95LA204Accident · 1 fatalLimited investigationFinal reportCessna A188B · Muscle Shoals, ALFailure of the pilot to maintain adequate visual lookout to see-and-avoid electrical power lines, while approaching a field for aerial application.Aug 13, 1995 · N4940R · Destroyed NTSB ATL93LA106Accident · Serious injuriesLimited investigationFinal reportCessna A188B · Centre, ALThe pilot's failure to maintain clearance from trees during agricultural application maneuvering. Factors were the trees in the vicinity of the planned flight path.Jun 5, 1993 · N91676 · Destroyed NTSB MIA92LA165Accident · Serious injuriesLimited investigationFinal reportCessna AT188B · Prattville, ALThe pilot-in-command's improper visual lookout and failure to maintain clearance from the wires.Aug 19, 1992 · N731PV · Substantial damage NTSB ATL86LA166Accident · Minor injuriesLimited investigationFinal reportCessna A188B · Magnolia Spring, ALDuring a spray run the plt attempted to climb over a tall tree, the acft failed to clear the tree which was contacted with the right wing. The acft then crash landed in a field. The acft was observed to stagger during several turns earlier in the operation.…Jun 7, 1986 · N9105R · Substantial damage NTSB ATL83LA257Accident · No injuriesLimited investigationFinal reportCessna A188B · Prattville, ALThe acft collided with a cow during takeoff for an aerial application flt. The collision broke off the right main landing gear and killed the cow. The pilot stated that the cow got through the fence and wandered onto the strip. The airstrip has a small rise…Jul 2, 1983 · N9381G · Substantial damage