NTSB investigations: Hughes Helicopters HUGHES 369D
10 cases on aircraft the registry lists as Hughes Helicopters HUGHES 369D, where the sequence of events included Low altitude operation/event. 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
| 2009 | 1 |
|---|---|
| 2012 | 1 |
| 2017 | 1 |
| 2018 | 3 |
| 2021 | 2 |
| 2023 | 2 |
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 ('4470706')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s.\"tier2Number\" = '220' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\")))
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 ('4470706')
AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '220' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
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 ERA23LA326Accident · Serious injuriesClass 4 · LimitedFinal reportHughes 369 · Elberon, VAThe pilot’s failure to maintain clearance from a power line structure arm, which resulted in main rotor blade contact.NTSB CEN23LA308Accident · No injuriesClass 4 · LimitedFinal reportHughes 369D · Atchison, KSThe pilot’s failure to adequately survey a field for obstructions prior to a low-level aerial application pass, which resulted in an impact with a powerline.NTSB CEN21LA165Accident · No injuriesClass 4 · LimitedFinal reportHughes 369D · Lake City, KSThe pilot’s failure to maintain clearance from power lines during power line maintenance.NTSB CEN21LA139Accident · No injuriesClass 4 · LimitedFinal reportHughes 369 · Kaufman, TXThe pilot’s failure to maintain clearance from a power line during low-level maneuvering.NTSB CEN19FA020Accident · 1 fatalClass 2 · FieldFinal reportHughes 369 · McDougal, ARThe pilot's failure to maintain the helicopter's clearance from the powerline structure while hovering in gusty wind conditions, which resulted in an inadvertent collision with the structure and an uncontrolled descent into terrain.NTSB GAA18CA506Accident · No injuriesData collectionFinal reportHughes 369 · Ridgeway, PAThe pilot's failure to maintain clearance from power lines during an aerial observation flight.NTSB WPR18FA074Accident · 1 fatalField investigationFinal reportHughes 369D · Pomeroy, WAA loss of control following the gunner's failure to ensure that the net maintained clearance from the tail rotor.NTSB CEN17LA314Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Villa Grove, COThe pilot’s failure to maintain main rotor clearance from a power line tower during low-level maneuvering.NTSB ERA13LA057Accident · 2 fatalLimited investigationFinal reportHughes 369D · Corning, NYThe pilot’s failure to maintain adequate altitude while conducting a power line aerial observation flight, which resulted in an in-flight collision with wires. Contributing to the accident was the pilot’s lack of total experience in the type of operation.NTSB ERA09LA194Accident · Serious injuriesLimited investigationFinal reportHughes 369D · Lee, MAThe pilot's failure to maintain clearance from the overhead wire.