Final NTSB investigations: Hiller UH-12E, ND

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

Cases per year

19802026
Final NTSB investigations: Hiller UH-12E, ND per year, 1980–2026: 6 cases
19802
19831
19872
19901

Latest cases

Query with SQL
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\" = 'ND' AND c.\"eventCountry\" = 'USA'
    AND c.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('4360122', '4360137'))
  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.

NTSB CHI90DTG02Accident · No injuriesFinal reportHiller UH-12-E · Garrison, NDThe failure of the helicopter tail rotor control cable. A factor related to the accident was the chafing of the tail rotor control cable.Aug 4, 1990 · N133HA · Substantial damageNTSB DEN87LA157Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Ray, NDThe plt reports that he was departing from an aerial app operating area. He said there was a tree line along a road with an opening and the takeoff was made toward the opening. There were wires across the opening and the poles were obscured by the trees on…Jun 20, 1987 · N68012 · Substantial damageNTSB DEN87LA146Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Grafton, NDThe plt was positioning the helicopter for an aerial application project. Before taking off, he checked the fuel quantity indicator & estimated there was 30 min of fuel on board. The proposed flt was estimated to take 10 min. During flt, the eng lost power &…Jun 9, 1987 · N8286 · Substantial damageNTSB DEN83LA204Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Manning, NDThe acft collided with the ground after an eng failure while stringing power lines. The acft was in a right side low, nose high attitude pulling a wire attached to the left side of the acft. The wind was from the right rear quarter when the loss of power…Aug 31, 1983 · N400AH · Substantial damageNTSB DEN81DTG03Accident · No injuriesClosedHiller Acft UH-12E · Watford City, NDNov 21, 1980 · N5343V · Substantial damageNTSB DEN81FTG01Accident · No injuriesClosedHiller UH12E · Argusville, NDOct 3, 1980 · N5594N · Substantial damage