NTSB investigations, MN
24 cases where the sequence of events included Low altitude operation/event.
Cases per year
| 2008 | 4 |
|---|---|
| 2009 | 1 |
| 2011 | 2 |
| 2012 | 2 |
| 2013 | 2 |
| 2014 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2021 | 1 |
| 2022 | 3 |
| 2023 | 3 |
| 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\" = 'MN' 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\" = '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."eventStateOrRegion" = 'MN' 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" = '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
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 CEN25LA286Accident · Minor injuriesClass 4 · LimitedFinal reportWeatherly 620B · Rushmore, MNThe pilot’s failure to maintain clearance from a tree during low-level maneuvering.NTSB CEN24LA006Accident · 1 fatalClass 3 · LimitedFinal reportGyro Technic GT-VX2 · Saint Peter, MNThe pilot's failure to maintain clearance from power lines during low-level maneuvering through a river valley.NTSB CEN23LA324Accident · 1 fatalClass 3 · LimitedFinal reportAir Tractor AT-402B · Clara City, MNThe pilot’s failure to maintain clearance from a transmission line during an aerial application flight.NTSB CEN23LA311Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-802 · Benson, MNThe 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. Contributing to the accident was the degraded visibility due to the smoke in the area.NTSB CEN22LA387Accident · No injuriesClass 4 · LimitedFinal reportRobinson Helicopter R66 · Millville, MNThe pilot’s inadequate inflight planning resulted in impact with a power line.NTSB CEN22LA340Accident · No injuriesClass 4 · LimitedFinal reportWeatherly 620A · Stewart, MNThe pilot’s failure to maintain adequate clearance from crops during an agricultural flight.NTSB CEN22LA342Accident · No injuriesClass 4 · LimitedFinal reportAir Tractor AT-502 · East Grand Forks, MNThe pilot’s failure to maintain clearance from the power lines during a low-level application pass.NTSB CEN21FA330Accident · 1 fatalClass 3 · FieldFinal reportRobinson R44 · Elgin, MNThe pilot’s decision to operate the helicopter under powerlines, which resulted in a main rotor blade striking a powerline, causing the helicopter to descend from a low altitude and impact terrain.NTSB CEN18FA297Accident · 1 fatalField investigationFinal reportAeronca 7AC · Alexandria, MNThe pilot's intentional low-altitude flight, which resulted in an impact with power lines.NTSB CEN18FA011Accident · 2 fatalField investigationFinal reportCessna 172M · Ramsey, MNThe pilot's decision to fly along the river at a low altitude contrary to applicable regulations and safety of flight considerations which resulted in the impact with the power lines. Contributing to the accident was the pilot's inability to see the and avoid…NTSB CEN16LA326Accident · 1 fatalLimited investigationFinal reportThrush S2R T660 · Ruthton, MNThe pilot's failure to see and avoid the tower guy-wire during an agricultural spraying operation.NTSB GAA16CA399Accident · No injuriesData collectionFinal reportAir Tractor AT 301 · Bird Island, MNThe pilot's diverted attention inside the cockpit and failure to maintain the airplane's altitude while maneuvering at a low altitude, resulting in an impact with terrain.NTSB CEN14CA444Accident · No injuriesData collectionFinal reportHughes 369HS · Saint Peter, MNThe pilot did not see the wires resulting in the subsequent wire collision.NTSB CEN13LA537Accident · No injuriesLimited investigationFinal reportContinental Copters Tomcat MK5A · Arlington, MNThe pilot’s failure to maintain control of the helicopter while maneuvering when he removed his hand from the collective control while plugging in his radio connection to his helmet, which resulted in the collective moving to the full-down position.NTSB CEN13LA444Accident · No injuriesLimited investigationFinal reportEagle DW-1 · Eagle Lake, MNThe pilot's misjudgment of tree heights, which resulted in the collision with a tree.NTSB CEN12CA546Accident · Minor injuriesData collectionFinal reportAir Tractor AT-502 · Hanley Falls, MNThe pilot’s failure to maintain clearance from a guy wire during an agricultural application pass.NTSB CEN12CA319Accident · Serious injuriesData collectionFinal reportHughes 369HS · Delavan, MNThe pilot’s failure to maintain clearance with power lines during an aerial application flight.NTSB CEN11CA533Accident · No injuriesData collectionFinal reportGarlick Helicopters OH-58C · Rushford, MNThe pilot's diverted attention, which resulted in the failure to maintain clearance from the power line.NTSB CEN11CA525Accident · No injuriesData collectionFinal reportBell 47G-2A · Nicolett, MNThe pilot's failure to maintain control of the helicopter while maneuvering during an aerial application flight.NTSB CEN09CA540Accident · Minor injuriesData collectionFinal reportAir Tractor AT-502 · East Grand Forks, MNThe pilot's failure to maintain clearance with the crops while maneuvering at low altitude.NTSB CHI08CA252Accident · No injuriesData collectionFinal reportHiller UH-12E · Cokato, MNThe pilot did not visually identify and maintain clearance with the power lines, and the pilot's inability to maintain control of the helicopter once it contacted the power lines. Factors associated with the accident were the low altitude operations being…NTSB CHI08CA243Accident · Minor injuriesData collectionFinal reportPiper PA-25-235 · Cosmos, MNThe pilot's failure to maintain clearance from the guide wire while maneuvering on an aerial application flight. Contributing to the accident was the presence of the guide wire.NTSB CHI08CA176Accident · No injuriesData collectionFinal reportAero Commander S2R · Clontarf, MNThe pilot's failure to maintain clearance from the power transmission lines. Contributing to the accident was the power transmission lines.NTSB CHI08LA080Accident · 1 fatalLimited investigationFinal reportCessna 140 · Grand Meadow, MNThe pilot's continued visual flight into an area of known instrument meteorological conditions in an airplane not equipped for instrument flight, and his failure to maintain control of the airplane while maneuvering at low altitude.