NTSB investigations: Schweizer TH55A/269A
5 cases on aircraft the registry lists as Schweizer TH55A/269A. 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
| 2000 | 1 |
|---|---|
| 2005 | 1 |
| 2006 | 1 |
| 2012 | 1 |
| 2021 | 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 ('8059503'))
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 ('8059503'))
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 CEN21LA253Accident · No injuriesClass 4 · LimitedFinal reportSchweizer TH55A/269A · Monroe, LAThe pilot’s failure to maintain yaw control during landing which resulted in a loss of tail rotor effectiveness.NTSB CEN12CA402Accident · No injuriesData collectionFinal reportSchweizer TH55A/269A · Grinnell, IAThe pilot’s inadequate compensation for the wind during a hovering maneuver, which resulted in a loss of tail rotor effectiveness and directional control.NTSB CHI06LA138Accident · 1 fatalLimited investigationFinal reportHughes 269A · Berlin Center, OHThe pilot flew at a low altitude and failed to maintain clearance from the wire. A factor was the wire.NTSB SEA05CA168Accident · No injuriesData collectionFinal reportHughes 269A · Ashland, ORThe inability of the dual student to maintain directional control of the helicopter during the landing roll when the left skid sank into an area of thick, soft, sticky tar, and the instructor pilot's improper decision to perform a full-down autorotational…NTSB LAX00TA355Accident · No injuriesFinal reportHughes TH-55A · Phoenix, AZthe flight instructor's misjudged flare during a simulated autorotation, which led to a hard landing.