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NTSB investigations: Hiller UH-12E, OR

42 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.

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19652026

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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."eventStateOrRegion" = 'OR' AND c."eventCountry" = 'USA' 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

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\" = 'OR' AND c.\"eventCountry\" = 'USA'
    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.

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" = 'OR' AND c."eventCountry" = 'USA'
  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

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 SEA05CA104Accident · Minor injuriesData collectionFinal reportHiller UH-12E · Estacada, ORThe failure of the pilot to maintain landing skid clearance during hover taxi, which resulted in a dynamic rollover. A factor was the gusty wind condition.May 23, 2005 · N3030H · Substantial damage NTSB SEA04LA073Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Haines, ORA momentary partial loss of power for undetermined reason(s) and the pilot's failure to maintain adequate RPM during his autorotation landing.Apr 26, 2004 · N9785C · Substantial damage NTSB SEA02LA073Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Goshen, ORThe failure of company maintenance personnel to identify and replace/repair the degraded exhaust stack. Contributing factors were the mis-rigged carburetor heat control and the pilot's failure to maintain appropriate rotor RPM. Additional contributing factors…Apr 22, 2002 · N3004T · Substantial damage NTSB SEA97LA117Accident · 1 fatalLimited investigationFinal reportHiller UH-12E · Miltonfreewater, ORThe main rotor blade separated due to fatigue. Factors were: an Airworthiness Directive was not properly performed, and inadequate inspection of the main rotor blades.May 21, 1997 · N3005J · Substantial damage NTSB SEA97LA072Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Glide, ORfailure 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.Mar 14, 1997 · N545HA · Substantial damage NTSB SEA95LA077Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Timber, ORThe pilot's inadequate aircraft preflight during which he failed to notice the main rotor shipping block had not been removed, and the resultant restricted movement of the flight control system.Apr 11, 1995 · N508HV · Substantial damage NTSB SEA94T#A01Accident · No injuriesClass 3Final reportHiller UH-12E · Eugene, ORMay 6, 1994 · N94492 · Substantial damage NTSB DEN93FA033Accident · 3 fatalField investigationFinal reportHiller UH-12E · Applegate, ORThe pilot initiating flight into known adverse weather. Factors were: low ceiling, fog, and turbulence.Mar 16, 1993 · N5344V · Destroyed NTSB SEA86FA039Accident · 1 fatalField investigationFinal reportHiller-Soloy UH-12E · Horton, ORThe fork connecting the rotorcraft's blue blade to the main rotor hub separated after a long term fatigue crack had spread through more than 60% of the fork circumference. The operator failed to carry out the appropriate inspection of the fork unit as…Jan 16, 1986 · N40290 · Destroyed NTSB SEA85LA126Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Athena, ORThe acft settled back to the ground shortly after takeoff before achieving translatioanal lift. The plt was attempting to test a new spray unit that had been installed. He had put 80 gallons of water in the spray tanks.May 31, 1985 · N37HS · Destroyed NTSB SEA85LA107Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Fall Creek, ORThe helicopter sustained substantial damage during a forced landing following a loss of power. According to the plt, the helicopter was refueled aprx 1 hr flt time prior to the accident. Cause of the power loss was not determined.May 5, 1985 · N28872 · Substantial damage NTSB SEA84LA174Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Redmond, ORThe acft collided with the ground after a in-flt main rotor blade separation during an aerial application flt. Inspection of the fracture surface of the failed blade revealed characteristics consistant with the high stress, low cycle fatigue. Lab findings…Jul 16, 1984 · N1043L · Substantial damage NTSB SEA84LA091Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Buxton, ORThe helicopter entered an uncontrolled right roll while lifting off from a trailer & struck the ground with the m/r. the plt reported the trailer was not level.Apr 19, 1984 · N56BA · Substantial damage NTSB SEA84LA034Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Mapleton, ORWhile approaching the spray area, the acft was in a level attitude at 20 to 25 mph & about 100 ft AGL when the plt heard a loud bang & noted a loss of power. He attempted an autorotative landing. During touchdown on hilly terrain, the acft rolled to the right…Jan 5, 1984 · N4027K · Substantial damage NTSB SEA82DYM07Accident · No injuriesClosedHiller Acft UH-12E · Nashville, ORDec 3, 1981 · N161HA · Substantial damage NTSB SEA81FYK07Accident · Serious injuriesClosedHiller Acft UH-12E · Umpqua, ORMar 18, 1981 · N90467 · Substantial damage NTSB SEA80FYM12Accident · No injuriesClosedHiller Acft UH-12E · Willamina, ORJan 17, 1980 · N545HA · Substantial damage NTSB SEA79FYM32Accident · No injuriesClosedHiller Acft UH-12E · Independence, ORMay 11, 1979 · N161HA · Substantial damage NTSB SEA79DYM23Accident · No injuriesClosedHiller Acft UH-12E · Friend, ORMar 24, 1979 · N175HA · Substantial damage NTSB SEA79FYK05Accident · No injuriesClosedHiller Acft UH-12E · Springfield, ORFeb 23, 1979 · N545HA · Substantial damage NTSB SEA79FYM08Accident · No injuriesClosedHiller Acft Soloy · Lacomb, ORDec 22, 1978 · N172ET · Substantial damage NTSB SEA79DYM04Accident · No injuriesClosedSoloy UH12E · Molalla, ORNov 2, 1978 · N5381V · Substantial damage NTSB SEA79FYM01Accident · No injuriesClosedHiller Acft UH-12E · Falls City, OROct 2, 1978 · N90476 · Substantial damage NTSB SEA78DYA18Accident · No injuriesClosedHiller Acft UH-12E · Adrian, ORJul 20, 1978 · N67696 · Destroyed NTSB SEA78FYM16Accident · No injuriesClosedHiller UH-12E · Cannon Beach, ORJan 20, 1978 · N62346 · Substantial damage NTSB SEA78FYK06Accident · 1 fatalClosedHiller UH-12E · Reedsport, ORJan 20, 1978 · N65149 · Minor damage NTSB SEA78FYM07Accident · Minor injuriesClosedHiller Acft UH-12E · Amity, ORNov 7, 1977 · N6ZH · Destroyed NTSB SEA78FYM06Accident · Serious injuriesClosedHiller Acft UH-12E · Depoe Bay, ORNov 3, 1977 · N9786C · Substantial damage NTSB SEA76FYC45Accident · Serious injuriesClosedHiller Acft UH-12E · Tillamook, ORMay 14, 1976 · N9785C · Destroyed NTSB SEA76DYC44Accident · No injuriesClosedHiller Acft UH-12E · Alsea, ORMay 4, 1976 · N6ZH · Substantial damage NTSB SEA75FYC03Accident · No injuriesClosedHiller Acft UH-12E · Dayton, ORJul 16, 1974 · N104HA · Substantial damage NTSB SEA74DYC49Accident · No injuriesClosedHiller Acft UH-12E · Independence, ORMay 1, 1974 · N5332V · Substantial damage NTSB SEA74DYI10Accident · No injuriesClosedHiller Acft UH-12E · London, ORMar 24, 1974 · N90469 · Substantial damage NTSB SEA74FYC39Accident · No injuriesClosedHiller Acft UH-12E · Sublimity, ORMar 18, 1974 · N9749C · Destroyed NTSB SEA74FYC36Accident · No injuriesClosedHiller Acft UH-12E · Mt Hood, ORMar 5, 1974 · N5367V · Substantial damage NTSB SEA70DVQ02Accident · No injuriesClosedHiller Acft UH-12E · Greenleaf, ORApr 4, 1970 · N5381V · Destroyed NTSB SEA69D0200Accident · No injuriesClosedHiller UH-12E · Estacada, ORJan 21, 1969 · N160Z · Destroyed NTSB SEA69D0181Accident · No injuriesClosedHiller UH-12E · Brightwood, ORDec 21, 1968 · N3820 · Substantial damage NTSB SEA68F0289Accident · Serious injuriesClosedHiller UH-12E · Newport, ORApr 2, 1968 · N9757C · Destroyed NTSB SEA66A0066Accident · No injuriesClosedHiller UH-12E · Huntington, ORJun 13, 1966 · N9785C · Substantial damage NTSB SEA66A0044Accident · Serious injuriesClosedHiller UH-12E · Heppner, ORFeb 24, 1966 · N9741C · Destroyed NTSB SEA66A0013Accident · No injuriesClosedHiller UH12E · Crowley, ORAug 16, 1965 · N5341V · Substantial damage