NTSB investigations: Hiller UH-12D
4 cases on aircraft the registry lists as Hiller UH-12D, where the first occurrence was “Loss of control - in flight”. 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
| 1985 | 1 |
|---|---|
| 1988 | 1 |
| 1989 | 1 |
| 1997 | 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 ('4360118')
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\" = 250))
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 ('4360118')
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" = 250))
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 NYC98LA023Accident · No injuriesLimited investigationFinal reportHiller UH-12D · Farmingdale, NJThe certificated flight instructor's inadequate supervision and failure to maintain directional control.NTSB ATL90GA010Accident · Serious injuriesFinal reportHiller UH-12D · Mentor, OHImproper in-flight planning/decision by the pilot. Factors related to the accident were: the pilot's improper compensation for wind conditions and trees.NTSB LAX88DVG04Accident · No injuriesFinal reportHiller UH-12E · Winters, CAThe pilot was taking off from a loading truck for his 16th aerial application. He reduced the load from 90 to 70 gals because the winds had become variable. The helicopter descended into ground effect where it normally attains translational lift. The…NTSB FTW85LA135Accident · No injuriesLimited investigationFinal reportHiller UH-12D · Big Spring, TXCFI was demonstrating a simulated eng failure with tailwind of 10 KTS, 20 KTS grnd speed. The acft yawed left and touchdown was made with 10 kt grnd speed. The right skid broke off and the acft rolled over. The maneuver was initiated at 4 ft skid height.