NTSB investigations: Enstrom F-28A
5 cases on aircraft the registry lists as Enstrom F-28A, where the first occurrence was “Hard landing”. 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
| 1983 | 1 |
|---|---|
| 1984 | 1 |
| 1988 | 1 |
| 1990 | 1 |
| 1992 | 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 ('3300406')
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\" = 200))
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 ('3300406')
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" = 200))
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 BFO92LA139Accident · No injuriesLimited investigationFinal reportEnstrom F-28A · Shelbyville, KYAn improper flare made by the pilot resulting in a hard landing and main rotor blade tail boom strike.NTSB ANC90FA047Accident · No injuriesField investigationFinal reportde Havilland DHC-6 · Chevak, AKImproper flare by the pilot (PIC) during the landing/flare. The weather condition with fog was a related factor.NTSB LAX88LA198Accident · No injuriesLimited investigationFinal reportEnstrom F28A · La Verne, CAThe helicopter landed hard during a practice touchdown autorotation (auto). The helo remained in closed traffic for the purpose of practicing touchdown autos to a landing area adjacent to the aprt's rwy. There was also another helo in closed traffic using the…NTSB NYC84LA171Accident · No injuriesLimited investigationFinal reportEnstrom F-28A · Spencer, MAAccording to the plt, the purpose of the flt was to practice autorotations. During practice, the acft touched down hard & was substantially damaged.NTSB CHI83LA193Accident · No injuriesLimited investigationFinal reportEnstrom F-28A · Schaumburg, ILThe rated student was on an instructional flt to become a helicopter instructor plt. During an autorotative landing in a farmer's field, the helicopter landed hard & the main rotor hit the tail cone.