NTSB investigations, AK
11 cases where the sequence of events included Roll over.
Cases per year
| 2008 | 1 |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 3 |
| 2021 | 2 |
| 2022 | 2 |
| 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 c.\"eventStateOrRegion\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '097' 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."eventStateOrRegion" = 'AK' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '097' 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
Run 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 ANC25LA034Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 182B · Girdwood, AKThe pilot's decision to land on an unsuitable landing surface, which resulted in a nose-over.NTSB WPR22LA329Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 Clipper 1 · Deadhorse, AKThe pilot's failure to maintain helicopter control during a descent, which resulted in a collision with terrain.NTSB ANC22LA023Accident · Minor injuriesClass 4 · LimitedFinal reportEurocopter AS 350 BA · Valdez, AKThe pilot's failure to maintain a proper approach path in flat light conditions, which resulted in landing short of the intended landing spot and impact with terrain.NTSB ANC21LA083Accident · Minor injuriesClass 4 · LimitedFinal reportMcdonnell Douglas Helicopter 369E · Delta Junction, AKThe pilot’s inability to maintain lateral control during the takeoff, which resulted in dynamic rollover. Contributing to the accident was the pilot’s decision to utilize an unsuitable landing area for flight operations.NTSB ANC21LA080Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R44 II · Pelican, AKThe pilot’s loss of control while landing on a remote helipad.NTSB GAA18CA491Accident · Minor injuriesData collectionFinal reportCessna U206 · Barter Island, AKThe pilot's failure to maintain lateral control while taxiing in gusting wind conditions.NTSB GAA18CA366Accident · No injuriesData collectionFinal reportRobinson R66 · Cordova, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in impact with brush and a loss of helicopter control.NTSB GAA18CA126Accident · No injuriesData collectionFinal reportCessna 180 · Nenana, AKThe pilot’s failure to maintain an adequate approach path to an unimproved airstrip, which resulted in a hard landing short of the airstrip.NTSB ANC17LA011Accident · Minor injuriesLimited investigationFinal reportRobinson Helicopter R22 · Unalaska, AKThe pilot’s failure to maintain adequate clearance from terrain during a precautionary landing in whiteout conditions, which resulted in an in-flight collision with terrain.NTSB GAA16LA031Accident · No injuriesLimited investigationFinal reportAirbus AS350 · Deadhorse, AKThe noninstrument-rated pilot's continued visual flight into adverse weather conditions, which resulted in spatial disorientation, and his subsequent failure to maintain terrain clearance while attempting to land in flat light and whiteout conditions.NTSB ANC08LA076Accident · No injuriesLimited investigationFinal reportEurocopter AS-350 BA · Chickaloon, AKThe pilot's incorrect actions during an out-of ground-effect hover, which resulted in the helicopter entering a main rotor ring vortex state, and a settling with power condition, producing an excessive descent rate and collision with terrain.