NTSB investigations: Continental IO-520 series, WA

5 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

19852026

NTSB investigations: Continental IO-520 series, WA per year, 1985–2026: 5 cases
1985	1
1988	1
1989	1
2003	1
2004	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" = 'WA' 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\" = 'WA' 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" = 'WA' 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 SEA04FA169Accident · 1 fatalField investigationFinal reportCessna A185F · Toutle, WAThe pilot's continued flight into known adverse weather conditions. Inadequate preflight planning/preparation, trees, a low ceiling and no suitable terrain available for the landing were factors.Aug 21, 2004 · N7562Q · Destroyed NTSB SEA03FA165Accident · 2 fatalField investigationFinal reportCessna 320D · Mazama, WAThe pilot's failure to maintain clearance from terrain while maneuvering. Mountainous terrain, trees and mountain obscuration were factors.Apr 17, 2003 · N4178T · Substantial damage NTSB SEA89LA054Accident · No injuriesLimited investigationFinal reportCessna 185 · Bellingham, WAThe pilot's failure to compensate for the loss of lift due to ice accumulation on the wings, his failure to control the rate of descent, and poor inflight decision making. Contributing to the accident was the pilot's fatigue.Mar 5, 1989 · N79PK · Substantial damage NTSB SEA88FA154Accident · 2 fatalField investigationFinal reportCessna 210E · N Bonneville, WAWhile on a flt from oroville to orchards, WA, the acft was about 25 to 30 mi east of the destn when it collided with trees & crashed. Impact occurred aprx 100 ft below the top of a ridgeline at an elev of about 1755 ft. a witness, who heard the crash, rprtd…Aug 16, 1988 · N3ME · Destroyed NTSB SEA85LA229Accident · No injuriesLimited investigationFinal reportCessna 185 · San Juan Island, WAThe pilot was attempting to depart his private airstrip to the north with trees bordering the north end of the airstrip. The wind was from 360 at 20 knots gusting to 30 knots. The pilot was unable to arrest his rate of sink and made a right turn to avoid…Sep 27, 1985 · N9644H · Destroyed