NTSB investigations: Beech H35, IA

7 cases on aircraft the registry lists as Beech H35. 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

19652026

NTSB investigations: Beech H35, IA per year, 1965–2026: 7 cases
1965	1
1966	2
1972	1
1976	1
1987	1
2010	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" = 'IA' 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 ('1151520')) 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\" = 'IA' 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 ('1151520'))
  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" = 'IA' 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 ('1151520'))
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 CEN11LA148Accident · No injuriesLimited investigationFinal reportBeech H35 · Des Moines, IAA total loss of engine power due to fuel exhaustion as a result of the pilot's inadequate fuel planning.Dec 18, 2010 · N5537D · Substantial damage NTSB MKC87LA119Accident · Serious injuriesLimited investigationFinal reportBeech B35 · Keokuk, IAThe PIC rptd a loss of manifold press during cruise flt and an inability to maintain alt. A forced lndg was made to the Keokuk arpt, but the PIC stated he was too high and fast for a lndg. The PIC made a go-around, but again approached too fast. Another…Jun 5, 1987 · N7973D · Substantial damage NTSB MKC76DCD32Accident · No injuriesClosedBeech H35 · Des Moines, IAMar 17, 1976 · N356B · Substantial damage NTSB MKC73AK014Accident · No injuriesClosedBeech H35 · Marion, IAAug 4, 1972 · N7940D · Substantial damage NTSB MKC67F0269Accident · No injuriesClosedBeech H35 · Waterloo, IASep 23, 1966 · N5429D · Substantial damage NTSB MKC67A0006Accident · 2 fatalClosedBeech H35 · Sioux City, IAJul 23, 1966 · N354B · Destroyed NTSB MKC66D0102Accident · No injuriesClosedBeechcraft H-35 · Cresco, IAJul 21, 1965 · N5565D · Substantial damage