NTSB investigations: Hiller UH-12E4

6 cases on aircraft the registry lists as Hiller UH-12E4. 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

19732026

NTSB investigations: Hiller UH-12E4 per year, 1973–2026: 6 cases
1973	1
1978	1
1980	2
1994	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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360127')) 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 ('4360127'))
  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 ('4360127'))
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 ERA22LA118Accident · No injuriesClass 4 · LimitedFinal reportHiller UH-12E4 · Shrewsbury, PAThe pilot’s failure to maintain control during the descent which resulted in a hard landing.Feb 9, 2022 · N64741 · Substantial damage NTSB SEA95LA013Accident · No injuriesLimited investigationFinal reportHiller UH-12E4 · Morton, WAA leak in the fuel filler cap and water in the fuel system. A factor to the accident was: inadequate preflight.Oct 28, 1994 · N80NW · Substantial damage NTSB NYC80FFJ10Accident · Minor injuriesClosedHiller Acft UH-12E · N Cohocton, NYJun 29, 1980 · N705WA · Substantial damage NTSB SEA80FYM41Accident · No injuriesClosedHiller Acft UH-12E · Gales Creek, ORJun 20, 1980 · N48220 · Substantial damage NTSB OAK79DVA11Accident · No injuriesClosedHiller UH-12E · Ivanhoe, CADec 8, 1978 · N64741 · Substantial damage NTSB ANC74AA009Accident · No injuriesClosedHiller Acft UH12L4 · Juneau, AKJul 17, 1973 · N90470 · Substantial damage