NTSB investigations
77 cases where NTSB found Snowy/icy terrain.
Cases per year
| 2008 | 26 |
|---|---|
| 2009 | 6 |
| 2010 | 4 |
| 2011 | 3 |
| 2012 | 4 |
| 2013 | 6 |
| 2014 | 4 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 4 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
| 2026 | 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '03021030')) 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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '03021030')) 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 WPR26LA095Accident · Minor injuriesClass 4 · LimitedFinal reportAmerican Champion 8KCAB · Alpine, WYThe pilot’s inadvertent descent while operating in flat light conditions which resulted in controlled flight into terrain.NTSB ANC25LA092Accident · No injuriesClass 4 · LimitedFinal reportEurocopter AS 350 B2 · Juneau, AKThe pilot’s failure to maintain adequate obstacle clearance during takeoff from uneven, snow-covered terrain in flat light conditions.NTSB ANC23LA036Accident · No injuriesClass 4 · LimitedFinal reportPiper PA31 · Point Thomson, AKThe pilot’s inadvertent descent below the published minimum descent altitude, while operating in flat light conditions, which resulted in controlled flight into terrain.NTSB WPR23LA126Accident · Minor injuriesClass 4 · LimitedFinal reportTrendak Taurus · Strawberry Reservoir, UTThe pilot’s failure to maintain clearance from the snow-covered lake while flying at a low altitude.NTSB CEN22LA112Accident · No injuriesClass 4 · LimitedFinal reportVans RV4 · Hortonville, WIThe loss of direction control while maneuvering off the plowed surface to avoid a collision with a vehicle.NTSB CEN21LA189Accident · No injuriesClass 4 · LimitedFinal reportBeech P35 · Poplar Grove, ILThe pilot's distraction and his failure to maintain a proper glidepath on the approach, which resulted in him landing short of the runway and impacting a snowbank.NTSB GAA19CA214Accident · No injuriesData collectionFinal reportCessna 180 · Limington, METhe pilot's failure to maintain directional control during touchdown, which resulted in runway excursion onto snow.NTSB GAA19CA154Accident · No injuriesData collectionFinal reportDenney Kitfox MDL Classiciv · Floodwood, MNThe pilot's loss of lateral control while landing in gusting crosswind conditions, which resulted in a nose-over.NTSB GAA19CA120Accident · No injuriesData collectionFinal reportEmmet Smith Roadrunner · Truckee, CAThe pilot's failure to maintain directional control during landing. Contributing to the accident was the pilot’s improper decision to allow the airplane to exit the runway onto a snow-covered field, which resulted in a nose-over.NTSB CEN19CA062Accident · Minor injuriesData collectionFinal reportPiper PA 18 · Iron Mountain, MIThe pilot's distraction and subsequent loss of situational awareness and visual horizon in overcast sky conditions, which led to an unrecognized descent during a low-level maneuver and subsequent impact with snow-covered terrain.NTSB ANC18LA032Accident · No injuriesLimited investigationFinal reportRobinson Helicopter R44 · Fairbanks, AKThe pilot's failure to maintain helicopter control while in a hovering turn, which resulted in a collision with obstacles.NTSB GAA18CA147Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Talkeetna, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in a dynamic rollover.NTSB GAA18CA090Accident · No injuriesData collectionFinal reportPiper PA22 · Yentna, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in a loss of directional control and subsequent nose-over.NTSB GAA17CA175Accident · No injuriesData collectionFinal reportCessna 172 · Greenville, METhe pilot's failure to maintain directional control while taxiing in gusting crosswind conditions.NTSB GAA17CA147Accident · No injuriesData collectionFinal reportCessna A185 · Fairbanks, AKThe pilot's failure to maintain an appropriate glidepath to the runway and to use the vertical guidance system.NTSB GAA17CA187Accident · No injuriesData collectionFinal reportPiper PA22 · Ruby, AKThe pilot’s failure to maintain directional control while landing in flat light conditions on a hard-packed snow-covered landing area.NTSB ANC17TA015Accident · Serious injuriesFinal reportPiper PA-32 · Pilot Point, AKThe pilot's continued flight into known icing conditions, which resulted in structural icing and a forced landing on icy, snow-covered terrain.NTSB GAA17CA116Accident · No injuriesData collectionFinal reportCessna 170 · Coeur D'Alene, IDThe pilot’s failure to maintain an appropriate descent rate during approach, which resulted in landing short of the runway threshold.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 GAA16CA124Accident · No injuriesData collectionFinal reportCessna 152 · Shirley, NYThe pilot's failure to maintain adequate terrain clearance while landing, which resulted in a collision with a snow berm, nose gear collapse, and postimpact fire.NTSB WPR16FA046Accident · 2 fatalField investigationFinal reportAerostar S A YAK 52 · Alpine, WYThe pilot's failure to maintain clearance from snow-covered terrain in flat light conditions.NTSB GAA16CA093Accident · No injuriesData collectionFinal reportCessna 172 · Newton, IAThe pilot's failure to maintain airplane control during the takeoff, resulting in a runway excursion, and airplane nose over.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 ERA15CA127Accident · No injuriesData collectionFinal reportSchweizer 269C 1 · Carthage, NYThe non-helicopter-rated pilot's improper decision to operate the helicopter at low-level and his inability to adequately see the horizon over snow and ice, which resulted in controlled flight into terrain.NTSB ERA14CA139Accident · No injuriesData collectionFinal reportPiper PA 11S · Marlboro, MAThe pilot's loss of directional control during the landing rollout in crosswinds, resulting in a runway excursion and subsequent impact with a snow bank.NTSB ERA14CA118Accident · No injuriesData collectionFinal reportBellanca 7KCAB · Sussex, NJThe pilot's improper preflight inspection, which resulted in a total loss of engine power due to fuel exhaustion.NTSB CEN14CA124Accident · Minor injuriesData collectionFinal reportCessna R182 · Mt. Morris, ILThe total loss of engine power due to fuel exhaustion, which resulted from the pilot's inadequate pre-flight planning and decision-making.NTSB ANC14CA014Accident · Minor injuriesData collectionFinal reportCessna 170 - B · Nome, AKThe pilot's failure to adequately remove water-contaminated fuel during the preflight inspection, which resulted in a total loss of engine power.NTSB WPR14CA082Accident · No injuriesData collectionFinal reportCubcrafters CC11-160 · Roberts, MTThe pilot's selection of unsuitable terrain during taxi, which resulted in a loss of directional control.NTSB ANC13CA028Accident · No injuriesData collectionFinal reportCessna 185B · Flat, AKThe pilot's inadequate compensation for gusting, variable wind conditions during initial climb after takeoff.NTSB ERA13LA151Accident · No injuriesLimited investigationFinal reportCessna 150 · Naples, METhe student pilot’s improper decision to land on a frozen lake.NTSB WPR13LA109Accident · No injuriesLimited investigationFinal reportPiper PA-28-235 · Bountiful, UTA total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB ANC13CA020Accident · No injuriesData collectionFinal reportCessna A185E · Skwentna, AKThe pilot's selection of unsuitable terrain for landing, which resulted in a main landing gear collapse.NTSB ANC13CA019Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Palmer, AKThe pilot's selection of unsuitable terrain for an off-airport landing, which resulted in a ground-loop.NTSB ERA13CA100Accident · No injuriesData collectionFinal reportRaytheon A36 · Rutland, VTThe pilot's failure to maintain control of the airplane while maneuvering on a snow-packed surface after landing, which resulted in a collision with a fuel truck.NTSB ANC12CA032Accident · No injuriesData collectionFinal reportRobinson Helicopter R22 Alpha · Palmer, AKThe pilot's selection of unsuitable terrain for landing, which resulted in a tailrotor strike.NTSB ANC12CA021Accident · No injuriesData collectionFinal reportBeech 99 · Anchorage, AKThe pilot's premature power reduction, which resulted in a runway undershoot.NTSB WPR12CA086Accident · No injuriesData collectionFinal reportCessna 180 · Cascade, IDThe pilot's inadequate compensation for a wind gust during landing, which resulted in a runway excursion. Contributing to the accident was a windsock partially sheltered by trees that provided inaccurate wind information.NTSB ANC11TA110Accident · No injuriesFinal reportBell 206 B3 · Seward, AKThe pilot's failure to maintain clearance from snow-covered terrain during hover in deteriorating weather and flat light conditions, which resulted in a tail rotor strike.NTSB WPR11LA233Accident · Serious injuriesLimited investigationFinal reportPalmer RV6A · Cody, WYThe pilot’s failure to maintain sufficient altitude to avoid rising terrain. Contributing to the accident was the pilot’s visual illusion and disorientation due to the flat light conditions.NTSB CEN11LA177Accident · Minor injuriesLimited investigationFinal reportPiper PA-16 · Lake Koshkonong, WIA loss of engine power for undetermined reasons during a low-altitude pass over a frozen lake.NTSB WPR11CA065Accident · No injuriesData collectionFinal reportAviat A-1B · North Bend, WAThe pilot's failure to predetermine the depth of the snow on the runway.NTSB ANC10CA027Accident · No injuriesData collectionFinal reportCessna 182B · Port Alsworth, AKThe pilot's decision to enter adverse weather conditions, resulting in a loss of visibility and collision with terrain during a turn to reverse direction.NTSB WPR10LA154Accident · No injuriesLimited investigationFinal reportSutton Avid Hauler · Rigby, IDA loss of engine power during takeoff for undetermined reasons.NTSB WPR10CA100Accident · No injuriesData collectionFinal reportBell 206B · Kalispell, MTThe pilot's failure to maintain lateral drift control during landing.NTSB WPR09LA179Accident · No injuriesLimited investigationFinal reportCessna 182 · Kalispell, MTA partial loss of engine power during a go-around for undetermined reasons. Contributing to the accident was a fatigue failure of the right main landing gear spring.NTSB ANC09CA026Accident · Minor injuriesData collectionFinal reportCessna 170B · Dillingham, AKThe pilot's selection of unsuitable terrain for takeoff and his failure to attain adequate airspeed to avoid an aerodynamic stall. Contributing to the accident was the pilot's decision to take off with the airplane over its maximum allowable gross weight.NTSB ANC09LA023Accident · No injuriesLimited investigationFinal reportHelio H-295 · Healy, AKThe pilot's delay in initiating a climb while he was packing snow with the airplane's skis in preparation for landing, resulting in a collision with brush.NTSB WPR09LA085Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Beaver, UTA loss of engine power while maneuvering due to a sheared propeller blade's pitch change link. Contributing to the accident was lack of suitable terrain for the forced landing.NTSB CEN09CA130Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Elrosa, MNThe pilot's inability to maintain control after touchdown on a snow-covered runway.