NTSB investigations: Hiller UH-12B, TX

6 cases on aircraft the registry lists as Hiller UH-12B. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19642026

NTSB investigations: Hiller UH-12B, TX per year, 1964–2026: 6 cases
1964	1
1965	1
1971	1
1994	2
2012	1

Where

Open the map

Latest cases

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" = 'TX' 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 ('4360110')) 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\" = 'TX' 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 ('4360110'))
  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" = 'TX' 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 ('4360110'))
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 CEN12LA650Accident · No injuriesLimited investigationFinal reportHiller UH-12B · Rio Vista, TXThe catastrophic failure and disintegration of the No. 6 engine piston, which resulted in a total loss of engine power.Sep 19, 2012 · N94735 · Substantial damage NTSB FTW94LA147Accident · No injuriesLimited investigationFinal reportHiller UH-12B · Crystal Beach, TXThe pilot's improper autorotation touchdown, which rsulted in the hard landing. A factor was the power loss due to water contaminated fuel.May 8, 1994 · N6417V · Substantial damage NTSB FTW94LA125Accident · Minor injuriesLimited investigationFinal reportHiller UH-12 · Alvin, TXThe pilot's failure to maintain rotor speed, delay of the flare, and the improper touchdown. A factor was the loss of engine power for undetermined reasons.Apr 16, 1994 · N41319 · Substantial damage NTSB FTW71FPD52Accident · No injuriesClosedHiller UH12B · Arlington, TXApr 28, 1971 · N10195 · Destroyed NTSB FTW65A0109Accident · No injuriesClosedHiller UH12B · Mcallen, TXMay 4, 1965 · N10195 · Substantial damage NTSB UNK65X1015Accident · No injuriesClosedHiller UH-12B · Pharr, TXDec 14, 1964 · N10195 · Substantial damage