NTSB investigations: Bell UH-1H, WA
7 cases on aircraft the registry lists as Bell UH-1H. 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
| 1991 | 1 |
|---|---|
| 1996 | 1 |
| 1998 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2018 | 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.\"eventStateOrRegion\" = 'WA' 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 ('1181407'))
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" = 'WA' 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 ('1181407'))
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 WPR18LA147Accident · Serious injuriesClass 3 · LimitedFinal reportBell UH 1H · Olympia, WAA loss of tail rotor thrust due to the improper installation of the tail rotor assembly by maintenance personnel resulted in the pilot’s inability to maintain control of the helicopter as he began transition into forward flight from a hover, which resulted in…NTSB WPR16LA142Accident · No injuriesLimited investigationFinal reportBell UH 1H · Mt. Adams, WAThe pilot’s failure to maintain yaw control as he slowed the helicopter during a landing approach, which resulted in the loss of helicopter control due to the loss of tail rotor effectiveness.NTSB WPR15LA219Accident · Minor injuriesLimited investigationFinal reportGarlick UH1H · Walla Walla, WAThe helicopter’s reduction in aerodynamic lift while operating in variable wind conditions for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have…NTSB WPR15LA109Accident · No injuriesLimited investigationFinal reportBell/Garlick UH 1H · Shelton, WAThe fatigue failure of the engine-to-transmission driveshaft adapter attachment bolt due to the application of inadequate torque on the bolt during assembly.NTSB SEA99LA020Accident · Serious injuriesLimited investigationFinal reportGarlick UH-1H · Darrington, WAThe total separation of the vertical fin (stabilizer), as the result of fatigue cracks which initiated in the fourth rivet hole above where the fin extends from the tailboom.NTSB SEA96FA076Accident · No injuriesField investigationFinal reportBell UH-1H · Rainier, WAfailure of the forward power shaft (number 21) bearing. A factor relating to the accident was: the lack of suitable, unobstructed terrain for an emergency landing.NTSB SEA92TL#03Accident · No injuriesClass 3Final reportBell 206L-3 · Kent, WA