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NTSB investigations: Hiller UH-12E, 1988

12 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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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 year(c.\"eventDate\") = 1988
    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 LAX88DVA16Accident · Minor injuriesFinal reportHiller UH-12E · Helm, CADuring an aerial application flight, the pilot lost control of the helicopter just after liftoff and collided with the terrain. Inspection of the wreckage revealed that the chemical trucks filler hose was still attached to the helicopter when it lifted off.Sep 10, 1988 · N4029Y · Substantial damageNTSB 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…Aug 17, 1988 · N65120 · Substantial damageNTSB NYC88DGM01Accident · 1 fatalFinal reportHiller UH-12E · Lovely, PAThe undetermined loss of engine power while performing low level aerial application operations.Aug 4, 1988 · N5375V · Substantial damageNTSB 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.Aug 3, 1988 · N14633 · Substantial damageNTSB CHI88DER06Accident · No injuriesFinal reportHiller UH-12E · Buffalo Lake, MNWhen the helicopter lifted off, the left tail rotor cable separated. Directional control was lost and the aircraft collided with the terrain. The pilot reported no injuries, however the helicopter sustained substantial damage. An inspection of the left tail…Jul 30, 1988 · N173HA · DestroyedNTSB 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…Jul 18, 1988 · N108HA · Substantial damageNTSB NYC88DFJ02Accident · Minor injuriesFinal reportHiller UH-12E · Cherry Creek, NYThe pilot reported that during an aerial application operation, he heard a noise that was followed by a decay in rotor RPM. Subsequently, he was forced to land in an area of tall trees & the helicopter was damaged. An investigationrevealed that a connecting…Jun 27, 1988 · N157HA · Substantial damageNTSB MIA88LA183Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Gretna, FLWhile on an aerial application flt, the plt stated he maneuvered the helicopter to release the remaining chemical. He then heard a loud 'screeching' noise followed by silence as the eng quit. The helicopter landed hard breaking the skids. It came to rest on…Jun 1, 1988 · N4029R · Substantial damageNTSB LAX88DVA05Accident · No injuriesFinal reportHiller 12E · Firebaugh, CADuring 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.May 9, 1988 · N117HA · Substantial damageNTSB 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…Apr 4, 1988 · N4029D · Substantial damageNTSB FTW88DRA03Accident · Serious injuriesFinal reportHiller UH-12-D · Bon-Wier, TXGround crewmember's failure to follow established procedures for secureing the aircraft to the transport trailer.Feb 17, 1988 · N48265 · DestroyedNTSB DEN88LA046Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Vernal, UTThe commercial plt and two passengers were surveying a road route in mountainous terrain. At cruise, the pilot noticed a drop in manifold pressure, followed by a loss of oil pressure. The plt reported that the engine quit. An autorotation to a snow covered…Jan 2, 1988 · N400AH · Substantial damage