# NTSB investigations: Hiller UH-12E: Loss of engine power(total) - nonmechanical 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 DFW06CA013](https://openairdocs.org/ntsb/DFW06CA013.md): Hiller UH-12E · Pasadena, TX · Accident · Serious injuries · Data collection · Final report · Oct 23, 2005 · N909BC · Substantial damage > The pilot's inadequate fuel management, which resulted in fuel exhaustion and a loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB LAX05CA313](https://openairdocs.org/ntsb/LAX05CA313.md): Hiller UH 12-E · Five Points, CA · Accident · No injuries · Data collection · Final report · Sep 22, 2005 · N141HA · Substantial damage > The pilot's failure to refuel the helicopter, which resulted in fuel exhaustion. - [NTSB DFW05CA208](https://openairdocs.org/ntsb/DFW05CA208.md): Hiller UH-12E · Hampton, AR · Accident · Serious injuries · Data collection · Final report · Aug 10, 2005 · N535HA · Substantial damage > A loss of engine power due to fuel exhaustion as a result of the pilot's failure to refuel. A factor was unsuitable terrain to complete a successful autorotation. - [NTSB ATL00LA043](https://openairdocs.org/ntsb/ATL00LA043.md): Hiller UH-12ET · Stonesboro, SC · Accident · No injuries · Limited investigation · Final report · Apr 20, 2000 · N9762C · Substantial damage > The pilot's improper inflight decision not to refuel which resulted in fuel exhaustion and a total loss of engine power. - [NTSB SEA99LA022](https://openairdocs.org/ntsb/SEA99LA022.md): Hiller UH-12E · Wenatchee, WA · Accident · No injuries · Limited investigation · Final report · Dec 17, 1998 · N893FW · Substantial damage > Fuel exhaustion due to the pilot's failure to accomplish refueling. - [NTSB LAX98LA089](https://openairdocs.org/ntsb/LAX98LA089.md): Hiller UH-12E · Chico, CA · Accident · No injuries · Limited investigation · Final report · Feb 13, 1998 · N4027Z · Substantial damage > Fuel exhaustion due to the pilot's failure to ensure that an adequate fuel supply was onboard. A contributing factor was related to the fuel quantity gage's erroneous indication of fuel. - [NTSB FTW96LA315](https://openairdocs.org/ntsb/FTW96LA315.md): Hiller UH-12E · Mount Holly, AR · Accident · Serious injuries · Limited investigation · Final report · Jul 24, 1996 · N9743C · Substantial damage > Fuel exhaustion due to the pilot's failure to refuel the helicopter. A factor was the lack of suitable terrain for the forced landing. - [NTSB SEA96LA100](https://openairdocs.org/ntsb/SEA96LA100.md): Hiller UH-12 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · May 27, 1996 · N174HA · Substantial damage > the pilot's inadequate preflight/planning, and his failure to refuel the helicopter with sufficient fuel before flight, which resulted in fuel exhaustion and a subsequent forced landing. A factor relating to the accident was: an inaccurate fuel quantity… - [NTSB CHI95LA202](https://openairdocs.org/ntsb/CHI95LA202.md): Hiller UH-12E · Blue Rapids, KS · Accident · No injuries · Limited investigation · Final report · Jun 27, 1995 · N1349A · Substantial damage > the leaking drain in the main fuel sump. Factors to the accident were the incorrect fuel indication, the ravine, fuel exhaustion, and the low rotor RPM. - [NTSB LAX95LA132](https://openairdocs.org/ntsb/LAX95LA132.md): Hiller UH-12E · Five Points, CA · Accident · No injuries · Limited investigation · Final report · Mar 12, 1995 · N172ET · Substantial damage > fuel exhaustion due to the pilot's inattention to the fuel supply. - [NTSB FTW94LA144](https://openairdocs.org/ntsb/FTW94LA144.md): Hiller UH-12E · Osage, AR · Accident · Minor injuries · Limited investigation · Final report · May 4, 1994 · N90469 · Substantial damage > Fuel exhaustion due to the pilot's failure to refuel and the lack of suitable terrain for a forced landing. - [NTSB BFO94LA040](https://openairdocs.org/ntsb/BFO94LA040.md): Hiller UH-12E · Farmville, VA · Accident · No injuries · Limited investigation · Final report · Feb 14, 1994 · N4495M · Substantial damage > the pilot's failure to refuel the helicopter with the correct fuel. Factors in the accident were the unclear information given by the passenger and airport line service personnel, the insufficient information regarding the labeling of the airport's fuel… - [NTSB CHI92DCD04](https://openairdocs.org/ntsb/CHI92DCD04.md): Hiller UH-12E · Milford, IA · Accident · No injuries · Final report · May 6, 1992 · N8286 · Substantial damage > A total loss of engine power for an undetermined reason as the helicopter was performing aerial application maneuvers. - [NTSB LAX92LA152](https://openairdocs.org/ntsb/LAX92LA152.md): Hiller UH-12E · Watsonville, CA · Accident · No injuries · Limited investigation · Final report · Mar 27, 1992 · N149HA · Substantial damage > A failure of the pilot to conduct an adequate pre-flight inspection of the aircraft to ensure that the fuel supply was free of contaminates. Contributing to this accident was fuel contamination. - [NTSB CHI91LA245](https://openairdocs.org/ntsb/CHI91LA245.md): Hiller 1345 · Michigan City, IN · Accident · Serious injuries · Limited investigation · Final report · Aug 3, 1991 · N57972 · Substantial damage > Fuel exhaustion due the pilot's delay in refueling. Factors related to the accident were pressure induced by others (passenger), and the absence of suitable terrain. - [NTSB LAX89DUJ09](https://openairdocs.org/ntsb/LAX89DUJ09.md): Hiller UH-12E · Tolleson, AZ · Accident · Minor injuries · Final report · Aug 16, 1989 · N7086 · Substantial damage > An engine failure due to water contamination in the fuel supply which preceded an autorotation and collision with the ground during night time conditions. - [NTSB LAX88DUG06](https://openairdocs.org/ntsb/LAX88DUG06.md): Hiller UH-12E · Thermal, CA · Accident · Minor injuries · Final report · Aug 17, 1988 · N65120 · Substantial damage > Shortly after refueling the helicopter & reloading the hopper, the plt took off & was starting to spray a field when the eng suddenly lost power. The plt said the helicopter was dscndg from about 30 ft when the power loss occurred; thus, he barely had time to… - [NTSB LAX88DUM06](https://openairdocs.org/ntsb/LAX88DUM06.md): Hiller UH12E · Bard, CA · Accident · No injuries · Final report · Aug 3, 1988 · N14633 · Substantial damage > During helicopter aerial application, engine power was lost. Plt applied back cyclic and tail rotor contacted terrain, followed by hard landing. Investigation revealed less than useable fuel remaining. - [NTSB MIA88LA225](https://openairdocs.org/ntsb/MIA88LA225.md): Hiller UH-12E · Clewiston, FL · Accident · No injuries · Limited investigation · Final report · Jul 18, 1988 · N108HA · Substantial damage > The plt stated the fuel gages indicated 20 gals when he took off on spraying flt. He had just completed the spray run & started to pull up from about 10 ft & 25 mph. At that time the eng quit '& sounded just like it would if it ran out of gas'. There was not… - [NTSB FTW88DRA05](https://openairdocs.org/ntsb/FTW88DRA05.md): Hiller UH-12E · La Salle, TX · Accident · No injuries · Final report · Apr 4, 1988 · N4029D · Substantial damage > Acft was substantially damaged during an emergency autorotation following an engine failure while the acft was completing an aerial application maneuver. Acft touched down tail low and the main rotor blades flexed down and cut off the tail boom. Investigation… - [NTSB DEN87LA146](https://openairdocs.org/ntsb/DEN87LA146.md): Hiller UH-12E · Grafton, ND · Accident · No injuries · Limited investigation · Final report · Jun 9, 1987 · N8286 · Substantial damage > The 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 &… - [NTSB CHI87DER03](https://openairdocs.org/ntsb/CHI87DER03.md): Hiller UH-12ET · Big Lake, MN · Accident · No injuries · Final report · Apr 3, 1987 · N135HA · Substantial damage > Aircraft was being maneuvered for landing on a ground support trailer when it experienced a power failure. Due to high trees autorotation was made to adjacent field. Aircraft landed on rough/uneven terrain and rolled over. Investigation revealed contaminated… - [NTSB LAX86FVM08](https://openairdocs.org/ntsb/LAX86FVM08.md): Hiller UH 12E · Gonzales, CA · Accident · No injuries · Final report · Sep 7, 1986 · N149HA · Substantial damage > A loss of power was expereinced as the acft descended into a field at the beginning of an aerial application spray run. The plt initiated a forced landing into the field. During the landing the right skid dug into the field, tipping the helicopter onto its… - [NTSB ATL86FEK03](https://openairdocs.org/ntsb/ATL86FEK03.md): Hiller UH-12E · Pataskala, OH · Accident · No injuries · Final report · Jul 15, 1986 · N136HA · Substantial damage > The acft autorotated to a forced landing after the eng quit at 600 ft AGL. The landing was made in a corn field. The plt told a FAA inspector at the scene that he had 8 gals of fuel remaining. When the fuel tank was drained it contained aprx 6 oz total. The… - [NTSB LAX86LA113](https://openairdocs.org/ntsb/LAX86LA113.md): Hiller UH-12E · Lodi, CA · Accident · No injuries · Limited investigation · Final report · Feb 7, 1986 · N62421 · Substantial damage > While on an aerial agricultural spraying flight the acft engine lost total power. The plt executed an immediate autorotation landing. Upon ground contact, the acft skid for about 8 ft until the front skid contacted the ground furrow and nosed over causing the… - [NTSB SEA85LA031](https://openairdocs.org/ntsb/SEA85LA031.md): Hiller UH-12ET · Hoquiam, WA · Accident · Minor injuries · Limited investigation · Final report · Dec 18, 1984 · N100LM · Substantial damage > Plt reported that while in normal cruise flight, a total loss of power occurred. Autorotation was effected in mountainous, wooded terrain. Examination of the engine showed continuity and freedom of rotation. Examination of the fuel system disclosed no… - [NTSB LAX84LA428](https://openairdocs.org/ntsb/LAX84LA428.md): Hiller UH-12ET · Delano, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 4, 1984 · N5359V · Substantial damage > The Hiller UH-12 helicopter (with a soloy conversion) was on a spray run when the eng began losing power. The plt headed for an 'open spot in the trees', but all power was lost the acft collided with almond trees. Only 15 to 18 ozs of fuel were remaining in… - [NTSB LAX84LA373](https://openairdocs.org/ntsb/LAX84LA373.md): Hiller UH-12E · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Jun 27, 1984 · N530HA · Substantial damage > After dispensing 8 loads, the plt refueled & took off with the 9th load. About 4 to 6 seconds into the flt, while approaching transitional lift at aprx 6 ft AGL, the helicopter began a vibration & immediately lost rotor RPM. The plt initiated a landing… - [NTSB NYC84FGM04](https://openairdocs.org/ntsb/NYC84FGM04.md): Hiller UH-12E · Sigel, PA · Accident · No injuries · Final report · Jun 2, 1984 · N109EH · Substantial damage > The plt was on an aerial application flt over a wooded area. According to him, he had a tail rotor problem & it was necessary to extend his glide to reach an open area. Subsequently, the helicopter landed hard & the main rotor blades struck & severed the tail… - [NTSB SEA84LA002](https://openairdocs.org/ntsb/SEA84LA002.md): Hiller UH12-E · Tenino, WA · Accident · No injuries · Limited investigation · Final report · Oct 2, 1983 · N401HA · Substantial damage > The plt visually checked the fuel tanks prior to takeoff & thought he had seen fuel in the tanks. The fuel gauges were inoperative & he was using timing as a method to determine the remaining fuel. Aprx 5 min after takeoff, the eng lost power as he was lining… - [NTSB ANC83LA172](https://openairdocs.org/ntsb/ANC83LA172.md): Hiller-Soloy UH12E · Cape Yakataga, AK · Accident · No injuries · Limited investigation · Final report · Sep 15, 1983 · N3324F · Substantial damage > The helicopter rolled over during a forced landing on a beach after the engine quit. Discussions with the plt owner of the company verified that the acft had run out of fuel. The owner had warned his pilots to visually check fuel on the helicopters due to… - [NTSB DEN83LA204](https://openairdocs.org/ntsb/DEN83LA204.md): Hiller UH-12E · Manning, ND · Accident · No injuries · Limited investigation · Final report · Aug 31, 1983 · N400AH · Substantial damage > The 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… - [NTSB LAX83LA296](https://openairdocs.org/ntsb/LAX83LA296.md): Hiller UH12E · San Diego, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 23, 1983 · N4036A · Substantial damage > The helicopter rolled over during an autorotative forced landing after a power loss. Prior to departure on the day of the accident the plt said he checked the fuel quantity on the acft. Takeoff was at about 1222 PDT. At 1256 PDT the plt arrived at destination… - [NTSB LAX83LA236](https://openairdocs.org/ntsb/LAX83LA236.md): Hiller UH-12E · Thermal, CA · Accident · No injuries · Limited investigation · Final report · May 18, 1983 · N4027L · Substantial damage > The plt reported that he was aprx 1/3 of the way thru a procedure turn at about 60 ft AGL, when he experienced a partial power loss. He completed the turn, leveled the helicopter & moumentarily regained complete power, then the engine quit operating. An… - [NTSB LAX83LA181](https://openairdocs.org/ntsb/LAX83LA181.md): Hiller UH12-E · Kettleman City, CA · Accident · No injuries · Limited investigation · Final report · Apr 7, 1983 · N68024 · Substantial damage > The pilot reported that he began flying about 0725 with 23 gallons of fuel on board. He applied a herbicide for about an hour and came back to reload. After reloading he began a return to the area to be sprayed. About 10 minutes later all power was lost.… - [NTSB SEA82FYP11](https://openairdocs.org/ntsb/SEA82FYP11.md): Hiller UH-12-SOLOY · Kellogg, ID · Accident · Serious injuries · Final report · Sep 6, 1982 · N9035H · Substantial damage > The plt stated he had just released a load of logs & started his transition into forward flt when the eng failed. No usable fuel was on board. The plt stated the fuel gauge registered 50 pounds of fuel when the eng failed. A leak test of the fuel suction… - [NTSB ATL82DA073](https://openairdocs.org/ntsb/ATL82DA073.md): Hiller UH12E · Lydia, SC · Accident · No injuries · Final report · Mar 17, 1982 · N4029R · Substantial damage > The pilot was applying liquid fertilizer on his last swath run prior to reloading when the engine stopped. A run-on landing was attempted during which the skids sank into the soft ground causing the helicopter to roll over. The field was level and covered… ## 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" = 353)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=4360122&occurrence=353 --- 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.