NTSB investigations: Engineering & Research 415-C, OH

9 cases on aircraft the registry lists as Engineering & Research 415-C. 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

19642026

NTSB investigations: Engineering & Research 415-C, OH per year, 1964–2026: 9 cases
1964	1
1966	1
1968	1
1973	1
1975	1
1979	1
2009	1
2011	1
2022	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" = 'OH' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302')) 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\" = 'OH' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302'))
  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" = 'OH' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302'))
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 ERA22LA412Accident · No injuriesClass 3 · LimitedFinal reportEngineering & Research 415-C · Galion, OHA partial loss of engine power due to an exhaust valve that was stuck in the open position.Sep 9, 2022 · N99209 · Substantial damage NTSB CEN12CA045Accident · No injuriesData collectionFinal reportEngineering & Research 415-C · Lebanon, OHThe pilot's improper landing flare, which resulted in a hard landing.Oct 25, 2011 · N93415 · Substantial damage NTSB CEN10IA173Incident · No injuriesIncident investigationFinal reportUnivar 415-C/D · Xenia, OHThe pilot's failure to maintain the proper glide slope during final approach, which resulted in an in-flight collision with a tree.Nov 6, 2009 · N93415 · Minor damage NTSB CHI79FEI16Accident · No injuriesClosedErco 415-C · South Macedoni, OHMar 22, 1979 · N87198 · Substantial damage NTSB CHI75FEI43Accident · Minor injuriesClosedErco 415C · Strongsville, OHApr 13, 1975 · N2491H · Substantial damage NTSB CHI73FEG18Accident · No injuriesClosedErcoupe 415-C · Brookville, OHFeb 17, 1973 · N3789H · Substantial damage NTSB CHI69F0249Accident · No injuriesClosedErco 415-C · Fremont, OHJul 9, 1968 · N99427 · Substantial damage NTSB CHI67D0082Accident · No injuriesClosedErco 415-CD · Brookville, OHJul 9, 1966 · N3789H · Substantial damage NTSB UNK64X1646Accident · Minor injuriesClosedErcoupe 415C · Willard, OHMay 7, 1964 · N86988 · Substantial damage