NTSB investigations: Enstrom F-28A, 1992
4 cases on aircraft the registry lists as Enstrom F-28A. 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
| 1969 | 1 |
|---|---|
| 1970 | 2 |
| 1971 | 3 |
| 1972 | 6 |
| 1973 | 9 |
| 1974 | 14 |
| 1975 | 14 |
| 1976 | 14 |
| 1977 | 11 |
| 1978 | 8 |
| 1979 | 8 |
| 1980 | 4 |
| 1981 | 4 |
| 1982 | 3 |
| 1983 | 5 |
| 1984 | 4 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 6 |
| 1988 | 4 |
| 1989 | 1 |
| 1990 | 5 |
| 1991 | 2 |
| 1992 | 4 |
| 1993 | 2 |
| 1994 | 3 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 2 |
| 1999 | 1 |
| 2001 | 3 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 1 |
| 2007 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2014 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2025 | 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 year(c.\"eventDate\") = 1992
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300406'))
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 year(c."eventDate") = 1992
AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3300406'))
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 NYC93LA016Accident · No injuriesLimited investigationFinal reportEnstrom F-28A · Kitts Hill, OHA hard landing due to improper use of the collective, following a wire strike due to inadequate visual lookout.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 LAX92LA245Accident · No injuriesLimited investigationFinal reportEnstrom F28A · Hanford, CAThe pilot's failure to maintain rotor RPM during the takeoff. Contributing factors were: the pilot's lack of familiarity with the aircraft and unfavorable winds that existed at the time of takeoff.NTSB NYC92LA100Accident · No injuriesLimited investigationFinal reportEnstrom F28A · Malvern, PAThe pilot abruptly moved the cyclic rearward which resulted in the main rotor blades striking and separating the tail boom. A factor in this accident was the soft muddy field.