# NTSB investigations: Hiller UH-12E: In flight collision with object NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB LAX03CA284](https://openairdocs.org/ntsb/LAX03CA284.md): Hiller UH12E · Kekaha, HI · Accident · No injuries · Data collection · Final report · Sep 9, 2003 · N9792C · Substantial damage > the pilot's failure to maintain clearance with the wires due to an inadequate visual lookout. - [NTSB LAX00LA077](https://openairdocs.org/ntsb/LAX00LA077.md): Hiller UH-12E · Five Points, CA · Accident · No injuries · Limited investigation · Final report · Jan 26, 2000 · N68024 · Substantial damage > The pilot's inadequate clearance while maneuvering beneath a telephone line. - [NTSB LAX00LA027](https://openairdocs.org/ntsb/LAX00LA027.md): Hiller UH-12E · Castroville, CA · Accident · Serious injuries · Limited investigation · Final report · Oct 28, 1999 · N5374V · Substantial damage > The pilot's inadequate visual lookout and diverted attention. - [NTSB FTW97LA131](https://openairdocs.org/ntsb/FTW97LA131.md): Hiller UH-12E · Donna, TX · Accident · Serious injuries · Limited investigation · Final report · Mar 19, 1997 · N136HA · Substantial damage > The pilot's failure to maintain clearance with the power lines during an aerial application flight. A factor was the power lines. - [NTSB SEA97LA072](https://openairdocs.org/ntsb/SEA97LA072.md): Hiller UH-12E · Glide, OR · Accident · Minor injuries · Limited investigation · Final report · Mar 14, 1997 · N545HA · Substantial damage > failure of the pilot to maintain clearance from a power transmission line. Factors relating to the accident included ambient light conditions, which made the power line hard to see. - [NTSB CHI94LA191](https://openairdocs.org/ntsb/CHI94LA191.md): Hiller HU-12E · Watertown, SD · Accident · 1 fatal · Limited investigation · Final report · Jun 23, 1994 · N330CW · Destroyed > the pilot's failure to maintain a visual lookout. A factor associated with the accident was the powerlines. - [NTSB LAX93LA319](https://openairdocs.org/ntsb/LAX93LA319.md): Hiller UH-12E · Dixon, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 11, 1993 · N100LM · Destroyed > the failure of the pilot to visually detect and avoid the guy wire. - [NTSB LAX92LA401](https://openairdocs.org/ntsb/LAX92LA401.md): Hiller UH-12E · Coachella, CA · Accident · No injuries · Limited investigation · Final report · Sep 26, 1992 · N57BA · Substantial damage > The pilot's inadequate visual lookout and his failure to maintain an adequate clearance from the wires. - [NTSB LAX90DVA08](https://openairdocs.org/ntsb/LAX90DVA08.md): Hiller UH-12-E · Los Banos, CA · Accident · Minor injuries · Final report · Aug 9, 1990 · N117HA · Destroyed > The pilot's failure to maintain a lookout for obstructions along his swath run. - [NTSB LAX88DVA05](https://openairdocs.org/ntsb/LAX88DVA05.md): Hiller 12E · Firebaugh, CA · Accident · No injuries · Final report · May 9, 1988 · N117HA · Substantial damage > During an aerial application, the helicopter collided with a guy wire and then a field. The pilot knew that the wire was there. He stated that he simply forgot that it was there and did not see it. There were no mechanical problems prior to the accident. - [NTSB DEN87LA157](https://openairdocs.org/ntsb/DEN87LA157.md): Hiller UH-12E · Ray, ND · Accident · No injuries · Limited investigation · Final report · Jun 20, 1987 · N68012 · Substantial damage > The 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… - [NTSB FTW86LA167](https://openairdocs.org/ntsb/FTW86LA167.md): Hiller UH-12E · Norias, TX · Accident · No injuries · Limited investigation · Final report · Sep 13, 1986 · N40268 · Substantial damage > The commercial plt was engaged in a livestock round-up and attempted to hover over a wire fence. The acft skid caught on the fence causing a loss of acft control and subsequent impact with the terrain. - [NTSB NYC84LA212](https://openairdocs.org/ntsb/NYC84LA212.md): Hiller 12E · Meadville, PA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1984 · N4033P · Substantial damage > The acft flew into wires during a crop spraying mission. The acft was flying at about 5-10 ft when a flash was seen overhead. The acft vibrated and slowed before impacting the ground and rolling over. - [NTSB CHI83LA321](https://openairdocs.org/ntsb/CHI83LA321.md): Hiller UH-12E · Brooklyn Park, MN · Accident · No injuries · Limited investigation · Final report · Jul 18, 1983 · N120NR · Substantial damage > The plt reported that he was spraying the end rows of a field when the helicopter approached some wires. He stated that he saw the wires at the last second & tried to get under them. Reportedly, the helicopter crossed below a set of power lines, but struck a… - [NTSB FTW83LA217](https://openairdocs.org/ntsb/FTW83LA217.md): Hiller UH-12E · Quanah, TX · Accident · No injuries · Limited investigation · Final report · May 3, 1983 · N138HA · Substantial damage > The helicopter was being used to search for cattle. As the plt was looking down through some bushes for cattle, the m/r blade hit a powerline wire about 25 ft AGL. - [NTSB LAX83LA069](https://openairdocs.org/ntsb/LAX83LA069.md): Hiller UH-12E · Near Vacaville, CA · Accident · No injuries · Limited investigation · Final report · Jan 8, 1983 · N4027D · Substantial damage > The aircraft collided with a telephone wire during takeoff. The pilot made a precautionary landing on the soft bank of a levee to assess the damage and left the rotor at idle. The levee bank gave way and the helicopter slid into the ditch where the rotor… - [NTSB ATL82DA214](https://openairdocs.org/ntsb/ATL82DA214.md): Hiller UH-12E · Centre, AL · Accident · No injuries · Final report · Jul 13, 1982 · N28872 · Substantial damage > While returning from a spraying operation, the pilot was flying low toward the rising sun when the helicopter collided with power lines. An autorotation was initiated, but the skids collapsed during the landing. - [NTSB LAX82DVA14](https://openairdocs.org/ntsb/LAX82DVA14.md): Hiller UH-12E · Chowchilla, CA · Accident · Serious injuries · Final report · Apr 15, 1982 · N67156 · Destroyed > The pilot was conducting an aerial dusting operation over a grape vineyard. While on a swath run, he gradually converged on a powerline that crossed the field at a slight angle from his flight path. As he proceeded on his swath run, the helicopter got closer… ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```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 ('4360122', '4360137') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 220)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=4360122&occurrence=220 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.