NTSB investigations: Engineering & Research 415-C

8 cases on aircraft the registry lists as Engineering & Research 415-C, where the sequence of events included Collision with terr/obj (non-CFIT). 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

20092026

NTSB investigations: Engineering & Research 415-C per year, 2009–2026: 8 cases
2009	2
2013	2
2019	3
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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))) 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('0420302')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
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 GAA20CA059Accident · No injuriesData collectionFinal reportErcoupe 415 · Greer, SCThe pilot's improper landing flare, which resulted in a hard landing, loss of directional control, and impact with a fence.Nov 3, 2019 · N87173 · Substantial damage NTSB CEN19LA167Accident · Serious injuriesClass 3 · LimitedFinal reportErcoupe 415 · Hawkins, TXA partial loss of engine power for undetermined reasons.Jun 13, 2019 · N87294 · Substantial damage NTSB GAA19CA245Accident · No injuriesData collectionFinal reportErcoupe 415 C · Rosendale, WIThe pilot's selection of unsuitable terrain for an off-airport precautionary landing, which resulted in impact with a fence and a nose-over.May 6, 2019 · N2101H · Substantial damage NTSB CEN13CA262Accident · Minor injuriesData collectionFinal reportEngineering & Research 415-C · Little Falls, MNThe failure of the airplane's throttle cable.Apr 26, 2013 · N94305 · Substantial damage NTSB WPR13LA191Accident · Minor injuriesLimited investigationFinal reportErcoupe 415-C · Mesquite, NVSeparation of the propeller from the engine during initial climb due to the incorrect torque applied to the propeller hub nut during maintenance.Apr 14, 2013 · N87114 · Substantial damage NTSB WPR09LA251Accident · No injuriesLimited investigationFinal reportErcoupe 415C · San Manuel, AZA loss of engine power during cruise flight for undetermined reasons, which resulted in a forced landing and impact with terrain.May 15, 2009 · N2339H · Substantial damage NTSB CEN09FA243Accident · 2 fatalField investigationFinal reportEngineering and Research 415C · Sandwich, ILThe pilot's failure to execute an immediate forced landing to a suitable field and the engine's partial loss of power for an undetermined reason.Apr 11, 2009 · N87384 · Destroyed