NTSB investigations, AK
420 cases where the sequence of events included Loss of control on ground.
Cases per year
| 2008 | 22 |
|---|---|
| 2009 | 31 |
| 2010 | 21 |
| 2011 | 23 |
| 2012 | 31 |
| 2013 | 20 |
| 2014 | 20 |
| 2015 | 14 |
| 2016 | 22 |
| 2017 | 25 |
| 2018 | 27 |
| 2019 | 26 |
| 2020 | 27 |
| 2021 | 26 |
| 2022 | 17 |
| 2023 | 18 |
| 2024 | 22 |
| 2025 | 13 |
| 2026 | 15 |
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\" = '230' 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" = '230' 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 ANC27LA001Accident · Minor injuriesClass 4 · LimitedInvestigation openCessna U206F · Meadow Lakes, AKNTSB ANC26LA095Accident · No injuriesClass 4 · LimitedInvestigation openChampion 7DC · Copper Center, AKNTSB ANC26LA086Accident · No injuriesClass 4 · LimitedInvestigation openDehavilland DHC-2 · Igiugig, AKNTSB ANC26LA078Accident · No injuriesClass 4 · LimitedInvestigation openCessna 180 · Nenana, AKNTSB ANC26LA072Accident · No injuriesClass 3 · LimitedPreliminary reportDehavilland DHC-2 MK.I · Nondalton, AKOn July 19, 2026 about 1440 Alaska daylight time, a DeHavilland DHC-2 airplane, N791PW was substantially damaged when it was involved in an accident near Nondalton, Alaska. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…NTSB ANC26LA065Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-18-125 · Wasilla, AKNTSB ANC26LA059Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-12 · North Pole, AKNTSB ANC26LA061Accident · No injuriesClass 4 · LimitedInvestigation openCessna 180 · Skwentna, AKNTSB ANC26LA047Accident · No injuriesClass 4 · LimitedInvestigation openBellanca 8GCBC · Salcha, AKNTSB ANC26LA050Accident · No injuriesClass 4 · LimitedInvestigation openCessna A185F · Steele Creek, AKNTSB ANC26LA045Accident · No injuriesClass 4 · LimitedInvestigation openCessna 170B · Bethel, AKNTSB ANC26LA034Accident · No injuriesClass 4 · LimitedInvestigation openPiper PA-18S-150 · Palmer, AKNTSB ANC26LA028Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Palmer, AKThe pilot’s failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in a ground loop.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 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 ANC26LA008Accident · No injuriesClass 4 · LimitedFinal reportCessna 172M · Palmer, AKThe student pilot’s failure to maintain directional control during the landing roll.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 ANC25LA107Accident · No injuriesClass 4 · LimitedFinal reportDavid Hunter Danchini CUB · Tyonek, AKThe pilot’s failure to maintain directional control of the airplane during the landing roll, in gusting crosswind conditions.NTSB ANC25LA104Accident · No injuriesClass 4 · LimitedFinal reportJeremy Price Smith Super CUB · Chisana, AKThe pilot’s failure to maintain directional control during the takeoff roll.NTSB ANC25LA093Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-20 · Anchorage, AKThe pilot receiving instruction’s failure to maintain directional control during the landing roll. Contributing to the accident was the flight instructor’s delayed remedial action.NTSB ANC25LA090Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Willow, AKThe pilot’s loss of control after a rejected takeoff, which resulted in a noseover.NTSB ANC25LA076Accident · No injuriesClass 4 · LimitedFinal reportCessna 180H · Gulkana, AKThe failure of the left rudder assembly which resulted in a runway excursion and ground loop.NTSB ANC25LA072Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Dillingham, AKThe pilot’s failure to maintain direction control during takeoff roll which resulted in a ground loop, and subsequent runway excursion.NTSB ANC25LA070Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Homer, AKThe pilot’s failure to maintain directional control during landing, which resulted in a ground loop.NTSB ANC25LA071Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Willow, AKThe flight instructor’s delayed remedial action/lack of supervision. Contributing to the accident was the pilot receiving instructions failure to maintain directional control during the landing roll in gusting wind conditions, which resulted in a ground loop.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 ANC25LA029Accident · No injuriesClass 4 · LimitedFinal reportCessna 172N · Manley Hot Springs, AKThe student pilot’s failure to maintain directional control during the landing roll on a snow and ice-covered runway, which resulted in a runway excursion and subsequent nose over.NTSB ANC25LA015Accident · No injuriesClass 4 · LimitedFinal reportGippsaero PTY GA8 · Nightmute, AKThe pilot’s loss of directional control while taxiing in gusting wind conditions.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 ANC25LA007Accident · No injuriesClass 4 · LimitedFinal reportAviat A1 · Seward, AKThe pilot’s improper landing flare which resulted in a hard landing, loss of directional control, and nose-over.NTSB ANC25LA003Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Wasilla, AKThe pilot’s failure to maintain directional control during the landing roll, resulting in a ground loop.NTSB ANC25FA001Accident · 1 fatalClass 3 · FieldPreliminary reportCessna 180 · Big Lake, AKOn October 4, 2024, about 1730 Alaska daylight time, a float-equipped Cessna 180 airplane, N4631U, sustained substantial damage when it was involved in an accident near Big Lake, Alaska. The pilot was fatally injured, and one passenger sustained serious…NTSB ANC24LA100Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Palmer, AKThe pilot's excessive braking during the landing roll, resulting in a ground loop and nose over.NTSB ANC24LA096Accident · No injuriesClass 4 · LimitedFinal reportCessna 182 · Buckland, AKThe pilot's failure to maintain directional control during the landing roll.NTSB ANC24LA078Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Healy, AKThe pilot’s failure to maintain directional control during takeoff, in gusty wind conditions, resulting in a loss of control and a collision with trees.NTSB ANC24LA075Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Fairbanks, AKThe pilot's failure to maintain directional control while landing at a short remote airstrip.NTSB ANC24LA076Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 · Skwentna, AKThe pilot's failure to maintain directional control during the landing roll.NTSB ANC24LA072Accident · No injuriesClass 4 · LimitedFinal reportPiper PA18 · Goose Bay, AKThe pilot's failure to maintain directional control during the landing roll.NTSB ANC24LA068Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver U-6A · Pedro Bay, AKThe pilot’s failure to maintain directional control of the airplane during takeoff. Contributing to the accident was sun glare.NTSB ANC24LA060Accident · No injuriesClass 4 · LimitedFinal reportDe Havilland DHC2 · Susitna, AKThe pilot’s selection of an unsuitable takeoff area, resulting in the floats contacting the shallow river bottom during takeoff, and a subsequent loss of control.NTSB ANC24LA055Accident · No injuriesClass 4 · LimitedFinal reportGippsland GA-8 · Tuntutuliak, AKThe pilot's failure to maintain directional control during takeoff after an encounter with a gusting wind, which resulted in a wing strike.NTSB ANC24LA053Accident · No injuriesClass 4 · LimitedFinal reportCessna 170B · Tok, AKThe pilot’s failure to maintain directional control of the airplane during the landing roll.NTSB ANC24LA050Accident · No injuriesClass 4 · LimitedFinal reportCub Crafters CC18-180 · Bethel, AKThe pilot's failure to maintain directional control during landing which resulted in a ground loop.NTSB ANC24LA047Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-20-135 · Nenana, AKThe pilot providing instruction’s delayed remedial action, resulting in a loss of control during landing roll.NTSB ANC24LA048Accident · No injuriesClass 4 · LimitedFinal reportStinson 108-2 · Bethel, AKThe uncertificated pilot’s decision to fly an unairworthy airplane and his failure to maintain directional control during landing, which resulted in a landing gear collapse. Contributing was the failure of the right main landing gear oleo strut.NTSB ANC24LA042Accident · No injuriesClass 3 · LimitedFinal reportCessna 170A · Willow, AKThe pilot’s failure to maintain directional control during landing roll, resulting in a ground loop and substantial damage to the airplane.NTSB ANC24LA044Accident · No injuriesClass 4 · LimitedFinal reportJordan Harry James Sportsman 2+2 · Fairbanks, AKThe pilot’s failure to maintain directional control during the takeoff roll.NTSB ANC24LA041Accident · No injuriesClass 4 · LimitedFinal reportBellanca 7GCBC · Knik, AKThe pilot's excessive braking during the landing roll, resulting in a nose over.NTSB ANC24LA031Accident · No injuriesClass 4 · LimitedFinal reportCessna 172P · Anchorage, AKThe student pilot’s failure to maintain directional control during landing.NTSB ANC24LA018Accident · No injuriesClass 4 · LimitedFinal reportCessna 180 · Skwentna, AKThe pilot’s failure to maintain directional control while taxiing, which resulted in a collision with trees.