NTSB investigations: Hiller UH-12E
17 cases on aircraft the registry lists as Hiller UH-12E, where the first occurrence was “Loss of engine power”. 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 |
|---|---|
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 2 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 1 |
| 1999 | 2 |
| 2001 | 1 |
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\" = 350))
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" = 350))
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 LAX01LA245Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Blythe, CAThe selection by the pilot of an unsuitable precautionary landing site on soft, uneven terrain, which resulted in a rollover.NTSB LAX99LA237Accident · No injuriesLimited investigationFinal reportHiller UH-12ET · Williams, CAThe pilot's inadequate preflight planning and verification that fuel was available for the intended flight. A factor was the fuel quantity false indication.NTSB SEA99LA031Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Tensed, IDThe pilot-in-command's inadequate fuel management which resulted in fuel exhaustion. Contributing factors were the absence of cautionary markings on the fuel gauge, and high trees at the accident site.NTSB CHI98LA312Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Shelton, NEThe pilot mismanaged the fuel which led to fuel starvation and subsequent loss of engine power.NTSB CHI98LA012Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Liberty, NEA loss of engine power for undetermined reasons.NTSB LAX97LA179Accident · Serious injuriesLimited investigationFinal reportHiller UH-12E · Truckee, CAA loss of engine power for undetermined reasons. A factor in the accident was the unsuccessful attempt to release the long line from the belly hook after it became entangled in a tree.NTSB FTW96LA285Accident · No injuriesLimited investigationFinal reportHiller UH12 · Franklin, LAloss of engine power for undetermined reasons, and the pilot's failure to maintain rotor RPM. A factor was the unsuitable terrain available for the precautionary landing.NTSB ATL96LA076Accident · Serious injuriesLimited investigationFinal reportHiller UH12-E · Huger, SCThe blocked fuel vent line that resulted in engine stoppage. A factor was tall trees that intervened the helicopter's flight path.NTSB MIA94LA029Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Moore Haven, FLFailure of the pilot-in-command to maintain aircraft control following loss of engine power for undetermined reasons.NTSB CHI94LA022Accident · No injuriesLimited investigationFinal reportHiller UH12E · Sioux Rapids, IAthe Pilot in Command failed to maintain clearance with the terrain while proceeding up an upslope.NTSB CHI92DCD09Accident · No injuriesFinal reportHiller Hiller UH-12E · Dows, IAContaminated fuel resulting in a loss of engine power.NTSB LAX91LA249Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Huron, CAThat unknown pilot(s) impoperly used the throttle control which caused an overspeed condition. Contributing to this accident was the connecting rod bolt fatigue failure.NTSB NYC88DGM01Accident · 1 fatalFinal reportHiller UH-12E · Lovely, PAThe undetermined loss of engine power while performing low level aerial application operations.NTSB MIA88LA014Accident · Minor injuriesLimited investigationFinal reportHiller UH-12E · Union Church, MSAt an altitude of aprx 75 feet during an agricultural turn, the plt reported that the engine lost power. While executing a forced landing, the rotor blades contacted trees, after which, during the descent, the right skid collided with a stump & the helicopter…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.NTSB SEA82DA164Accident · No injuriesFinal reportHiller-Soloy UH-12E · Spirit Lake, WAPilot performed autorotation from 2000 feet to check RPM. At 200-300 feet when collective was added power loss occurred. Aircraft landed hard and severed tail boom. Logging support operations.NTSB CHI82DA162Accident · No injuriesFinal reportHiller 12E · Benson, MNHelicopter flying at 250 feet to stay below clouds had engine failure. Landed downwind in muddy field. Right skid collapsed.