NTSB investigations
219 cases where NTSB found Snow/slush/ice covered surface.
Cases per year
| 2008 | 22 |
|---|---|
| 2009 | 12 |
| 2010 | 17 |
| 2011 | 15 |
| 2012 | 17 |
| 2013 | 13 |
| 2014 | 10 |
| 2015 | 4 |
| 2016 | 10 |
| 2017 | 13 |
| 2018 | 9 |
| 2019 | 15 |
| 2020 | 13 |
| 2021 | 12 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 4 |
| 2025 | 4 |
| 2026 | 7 |
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\", '03023015')) 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", '03023015')) 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 ANC26LA025Accident · No injuriesClass 4 · LimitedFinal reportAvid Avid Flyer · Anchorage, AKThe pilot’s failure to maintain directional control while maneuvering onto the runway for takeoff. Contributing to the accident was the presence of heavy, wet snow adjacent to the runway.NTSB ANC26LA023Accident · Minor injuriesClass 4 · LimitedFinal reportWag Aero Sportsman · Cordova, AKThe pilot’s decision to land on an unsuitable snow-covered runway and his failure to maintain directional control during the landing roll which resulted in a nose over.NTSB ANC26LA022Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Skwentna, AKThe pilot’s loss of directional control during landing roll due to contact with wind hardened snow berm and subsequent failure of main landing gear.NTSB WPR26LA106Accident · No injuriesClass 4 · LimitedFinal reportCessna 120 · Kneeland, CAThe pilot’s failure to maintain airplane control during landing roll on a snow-covered runway.NTSB ERA26LA102Accident · No injuriesClass 4 · LimitedFinal reportCessna 172 · New Castle, DEThe pilots’ failure to properly identify the assigned runway during the landing approach, which resulted in the airplane landing on a closed, snow-covered runway. Contributing was the illumination of the closed runway’s edge lighting.NTSB ANC26LA011Accident · No injuriesClass 4 · LimitedFinal reportCessna 150K · Anchorage, AKThe flight instructor’s unintentional selection of the wrong, snow-covered landing surface, which resulted in a nose-over.NTSB DCA26LA102Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737 · Kodiak, AKThe reduced surface friction of the contaminated ramp which led to a loss of directional control during taxi.NTSB ANC26LA005Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-31-350 · Eek, AKThe pilot’s loss of directional control when the airplane encountered snow and ice on the runway while landing at night in gusting crosswind conditions.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 ANC25LA033Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Bethel, AKThe pilot's delayed decision to abort the takeoff when the airplane was not attaining sufficient airspeed for takeoff and subsequently departed the end of the lake and collided with terrain.NTSB CEN25LA069Accident · No injuriesClass 3 · LimitedFinal reportCirrus Design SF50 · Spearfish, SDThe pilot’s failure to land on the centerline of the snow-covered runway at night, which resulted in the left wing impacting a snowbank, a subsequent loss of directional control, and runway excursion.NTSB ANC25LA014Accident · No injuriesClass 4 · LimitedFinal reportCessna 172N · Anchorage, AKThe student pilot’s failure to maintain directional control of the airplane during touch-and-go operations on an ice-covered runway during her first solo flight.NTSB WPR24LA098Accident · No injuriesClass 4 · LimitedFinal reportCessna 182A · Weippe, IDThe pilot’s failure to secure the oil filler cap during the preflight inspection, which resulted in a precautionary landing on the soft surface and subsequent nose over.NTSB WPR24LA079Accident · No injuriesClass 4 · LimitedFinal reportCessna 180 · Featherville, IDThe pilot's failure to maintain directional control during taxi, which resulted in a runway excursion and impact with terrain.NTSB WPR24LA071Accident · Minor injuriesClass 4 · LimitedFinal reportLearjet 55 · Livingston, MTThe flight crew’s decision to land on a snow-covered runway with a tailwind, resulting in a runway excursion and subsequent impact with terrain. Contributing to the accident, was the failure of the airport authority to plow the runway.NTSB CEN24LA072Accident · No injuriesClass 4 · LimitedFinal reportCessna 172M · Red Lake, MNThe pilot’s inadequate landing surface evaluation and failure to stop the airplane on the frozen lake, which resulted the airplane continuing into a crack in the ice.NTSB ANC24LA003Accident · No injuriesClass 4 · LimitedFinal reportCessna 180H · McCarthy, AKThe pilot’s loss of directional control after touchdown which resulted in substantial damage to the right wing.NTSB ANC23LA030Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Soldotna, AKThe pilot’s selection of an unsuitable landing site, which resulted in the main landing gear wheels breaking through the snow and the airplane nosing over.NTSB CEN23LA141Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-28-161 · Maple Lake, MNThe student pilot’s failure to maintain directional control during landing with a gusting crosswind.NTSB CEN23LA132Accident · No injuriesClass 4 · LimitedFinal reportMaule M-7-235B · Hotchkiss, COThe pilot’s loss of control during landing rollout on a snow-covered, turf airstrip.NTSB CEN23LA122Accident · No injuriesClass 4 · LimitedFinal reportCessna 172S · Princeton, MNThe pilot’s failure to maintain directional control during the takeoff roll. Contributing to the accident, was the runway condition combined with a right crosswind.NTSB ANC23LA022Accident · No injuriesClass 4 · LimitedFinal reportCessna U206F · Chugiak, AKThe pilot’s failure to maintain directional control during takeoff in flat light conditions which resulted in a loss of control and impact with a snow berm.NTSB ANC23LA019Accident · No injuriesClass 4 · LimitedFinal reportCessna 207 · Newtok, AKThe pilot’s failure to maintain directional control while landing with a crosswind on an ice-covered runway, resulting in a loss of control and subsequent impact with a snowbank. A factor was the check airman’s inadequate supervision.NTSB CEN23LA098Accident · No injuriesClass 4 · LimitedFinal reportCessna 120 · Eagle River, WIThe pilot’s decision to takeoff from an unsuitable surface which resulted in collision with an object.NTSB CEN23LA090Accident · No injuriesClass 4 · LimitedFinal reportAmerican Champion 8KCAB · Hyannis, NEThe pilot’s failure to maintain clearance from a snowbank during landing, which resulted in a nose-over.NTSB CEN23LA069Accident · No injuriesClass 4 · LimitedFinal reportCessna 150J · South St. Paul, MNThe student pilot’s failure to maintain directional control during the take-off roll with a snow and ice covered runway.NTSB ANC23LA017Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22-150 · Wasilla, AKThe pilot's selection of an unsuitable landing site, which resulted in a nose over after the main landing gear wheels broke through deep snow on the snow-covered runway.NTSB WPR23LA053Accident · No injuriesClass 4 · LimitedFinal reportAviat A-1C-180 · Morgan, UTThe pilot’s failure to maintain clearance from snow covered terrain while maneuvering at low attitude. Contributing to the accident was the pilot’s loss of visual reference due to snow and flat light conditions.NTSB ANC23LA014Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-28-140 · Anchorage, AKThe pilot’s failure to maintain directional control of the airplane during landing.NTSB ANC22LA045Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22-150 · Aleknagik, AKThe pilot’s selection of unsuitable terrain for taxi which resulted in an impact with trees.NTSB WPR22LA139Accident · No injuriesClass 4 · LimitedFinal reportAviat A-1B · Swan Valley, IDThe pilot’s failure to maintain airplane control during the landing roll on a snow-covered runway surface.NTSB ERA22LA150Accident · No injuriesClass 3 · LimitedFinal reportHonda Jet HA-420 · Pittsburgh, PAThe flight crew's continuation of an unstable approach, which resulted in a long landing on a contaminated runway. Contributing to the outcome was the captain’s full application of the emergency brake, which resulted in hydroplaning and a runway excursion.NTSB ERA22LA158Accident · No injuriesClass 4 · LimitedFinal reportAxell Charles L RV-6 · Laurens, NYThe pilot’s failure to maintain directional control during landing.NTSB ANC22LA017Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22-150 · Kasilof, AKThe pilot’s decision to land on an unmaintained runway surface, which resulted in a loss of control and nose over.NTSB CEN22LA114Accident · No injuriesClass 4 · LimitedFinal reportAeronca 7AC · Cook, MNThe pilot’s failure to ensure the snow-covered takeoff area was safe, which resulted in a collision with ice and subsequent landing gear damage.NTSB CEN22LA092Accident · No injuriesClass 4 · LimitedFinal reportCessna 172L · Minocqua, WIThe pilot’s loss of control during landing when the airplane encountered ice and snow on the runway.NTSB WPR22LA074Accident · No injuriesClass 4 · LimitedFinal reportAmerican Champion 8GCBC · Jordan Valley, ORThe pilot’s decision to takeoff on remote snow covered terrain which, resulted in a nose-over.NTSB WPR22LA071Accident · No injuriesClass 4 · LimitedFinal reportCessna 150C · Johnsondale, CAThe pilot’s failure to maintain directional control of the airplane while landing on a snow-covered unimproved runway.NTSB ANC22LA006Accident · No injuriesClass 4 · LimitedFinal reportCub Crafters CC-18-180 · Yukon Charlie River, AKThe pilot’s selection of an unsuitable landing site, which resulted in a nose-over.NTSB ANC21LA029Accident · No injuriesClass 4 · LimitedFinal reportCessna 170A · Lime Village, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in a landing gear collapse.NTSB ANC21LA027Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Port Alsworth, AKThe pilot's misidentification of the airport’s active runway, which resulted in an off runway landing and a collision with a snow berm. Contributing to the accident was the runway’s lack of identifying markings.NTSB ANC21LA025Accident · No injuriesClass 4 · LimitedFinal reportCessna 208B · Chevak, AKThe pilot’s loss of directional control during the back-taxi for departure in strong crosswind conditions which resulted in a runway excursion. Contributing to the accident was the snow-and-ice-covered runway.NTSB CEN21LA136Accident · No injuriesClass 3 · LimitedFinal reportLearjet 55 · Jeffersonville, INThe flight crew’s failure to verify the correct runway for landing, which resulted in a landing on a snow contaminated runway and resulting damage to the airplane. The illumination of the lights associated with the closed runway contributed to the accident.NTSB ANC21LA017Accident · Minor injuriesClass 4 · LimitedFinal reportMaule M-6-235 · Tyonek, AKThe pilot’s selection of unsuitable terrain for landing, which resulted in the airplane encountering deep snow and coming to rest inverted.NTSB CEN21LA127Accident · No injuriesClass 4 · LimitedFinal reportCessna 172N · Prairie du Sac, WIThe student pilot’s loss of directional control during takeoff, which resulted in the collision with a snowbank. Contributing to the accident was the compacted snow conditions on the runway surface.NTSB CEN21LA126Accident · No injuriesClass 4 · LimitedFinal reportCessna 172S · Urbana, OHThe student pilot’s loss of directional control during landing which resulted in an impact with a snowbank. The slippery runway condition contributed to the accident.NTSB CEN21LA123Accident · No injuriesClass 4 · LimitedFinal reportPiper J3F-50 · Weidman, MIThe pilot’s failure to maintain clearance from terrain during a low approach over a snow-covered runway. Contributing to the accident was the loss of depth perception due to the bright sunlight and snow.NTSB ANC21LA012Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-14 · Anchorage, AKThe instructor pilot’s selection of an unsuitable snow-covered runway for landing practice, and the pilot under instruction’s failure to maintain directional control during a landing roll, which resulted in a loss of control in unpacked snow and a subsequent…NTSB WPR21LA096Accident · No injuriesClass 4 · LimitedFinal reportHeckel Super Sportsman · Spotted Bear, MTThe pilot’s failure to maintain aircraft control during the landing roll on an unimproved snow-covered runway which resulted in a nose-over.NTSB ANC21LA010Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 172R · Hope, AKThe pilot’s selection of unsuitable terrain for landing. A factor was the certified flight instructor’s selection of unsuitable terrain for landing.