NTSB investigations: Hiller UH-12E
37 cases on aircraft the registry lists as Hiller UH-12E, where the first occurrence was “Loss of engine power(total) - nonmechanical”. 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
| 1982 | 2 |
|---|---|
| 1983 | 6 |
| 1984 | 4 |
| 1986 | 3 |
| 1987 | 2 |
| 1988 | 4 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 2 |
| 1994 | 2 |
| 1995 | 2 |
| 1996 | 2 |
| 1998 | 2 |
| 2000 | 1 |
| 2005 | 3 |
Where
Open the mapLatest 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.\"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"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 ('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" DESCRun 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 DFW06CA013Accident · Serious injuriesData collectionFinal reportHiller UH-12E · Pasadena, TXThe 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 LAX05CA313Accident · No injuriesData collectionFinal reportHiller UH 12-E · Five Points, CAThe pilot's failure to refuel the helicopter, which resulted in fuel exhaustion.NTSB DFW05CA208Accident · Serious injuriesData collectionFinal reportHiller UH-12E · Hampton, ARA 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 ATL00LA043Accident · No injuriesLimited investigationFinal reportHiller UH-12ET · Stonesboro, SCThe pilot's improper inflight decision not to refuel which resulted in fuel exhaustion and a total loss of engine power.NTSB SEA99LA022Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Wenatchee, WAFuel exhaustion due to the pilot's failure to accomplish refueling.NTSB LAX98LA089Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Chico, CAFuel 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 FTW96LA315Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Mount Holly, ARFuel exhaustion due to the pilot's failure to refuel the helicopter. A factor was the lack of suitable terrain for the forced landing.NTSB SEA96LA100Accident · No injuriesLimited investigationFinal reportHiller UH-12 · Walla Walla, WAthe 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 CHI95LA202Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Blue Rapids, KSthe 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 LAX95LA132Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Five Points, CAfuel exhaustion due to the pilot's inattention to the fuel supply.NTSB FTW94LA144Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Osage, ARFuel exhaustion due to the pilot's failure to refuel and the lack of suitable terrain for a forced landing.NTSB BFO94LA040Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Farmville, VAthe 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 CHI92DCD04Accident · No injuriesFinal reportHiller UH-12E · Milford, IAA total loss of engine power for an undetermined reason as the helicopter was performing aerial application maneuvers.NTSB LAX92LA152Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Watsonville, CAA 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 CHI91LA245Accident · Serious injuriesLimited investigationFinal reportHiller 1345 · Michigan City, INFuel 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 LAX89DUJ09Accident · Minor injuriesFinal reportHiller UH-12E · Tolleson, AZAn engine failure due to water contamination in the fuel supply which preceded an autorotation and collision with the ground during night time conditions.NTSB LAX88DUG06Accident · Minor injuriesFinal reportHiller UH-12E · Thermal, CAShortly 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 LAX88DUM06Accident · No injuriesFinal reportHiller UH12E · Bard, CADuring 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 MIA88LA225Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Clewiston, FLThe 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 FTW88DRA05Accident · No injuriesFinal reportHiller UH-12E · La Salle, TXAcft 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 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 &…NTSB CHI87DER03Accident · No injuriesFinal reportHiller UH-12ET · Big Lake, MNAircraft 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 LAX86FVM08Accident · No injuriesFinal reportHiller UH 12E · Gonzales, CAA 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 ATL86FEK03Accident · No injuriesFinal reportHiller UH-12E · Pataskala, OHThe 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 LAX86LA113Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Lodi, CAWhile 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 SEA85LA031Accident · Minor injuriesLimited investigationFinal reportHiller UH-12ET · Hoquiam, WAPlt 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 LAX84LA428Accident · Serious injuriesLimited investigationFinal reportHiller UH-12ET · Delano, CAThe 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 LAX84LA373Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Yuba City, CAAfter 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 NYC84FGM04Accident · No injuriesFinal reportHiller UH-12E · Sigel, PAThe 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 SEA84LA002Accident · No injuriesLimited investigationFinal reportHiller UH12-E · Tenino, WAThe 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 ANC83LA172Accident · No injuriesLimited investigationFinal reportHiller-Soloy UH12E · Cape Yakataga, AKThe 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 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…NTSB LAX83LA296Accident · Serious injuriesLimited investigationFinal reportHiller UH12E · San Diego, CAThe 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 LAX83LA236Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Thermal, CAThe 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 LAX83LA181Accident · No injuriesLimited investigationFinal reportHiller UH12-E · Kettleman City, CAThe 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 SEA82FYP11Accident · Serious injuriesFinal reportHiller UH-12-SOLOY · Kellogg, IDThe 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 ATL82DA073Accident · No injuriesFinal reportHiller UH12E · Lydia, SCThe 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…