NTSB investigations: Pratt & Whitney R-985 series, AK
175 cases on aircraft whose registry engine model is Pratt & Whitney R-985 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1962 | 1 |
|---|---|
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1973 | 2 |
| 1974 | 1 |
| 1975 | 3 |
| 1976 | 3 |
| 1977 | 4 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 6 |
| 1981 | 6 |
| 1982 | 3 |
| 1983 | 2 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 3 |
| 1988 | 2 |
| 1989 | 4 |
| 1990 | 5 |
| 1991 | 5 |
| 1992 | 1 |
| 1993 | 4 |
| 1994 | 3 |
| 1995 | 2 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 4 |
| 1999 | 1 |
| 2000 | 3 |
| 2001 | 3 |
| 2002 | 4 |
| 2003 | 3 |
| 2004 | 3 |
| 2005 | 4 |
| 2006 | 2 |
| 2007 | 4 |
| 2008 | 4 |
| 2009 | 3 |
| 2010 | 5 |
| 2011 | 2 |
| 2012 | 6 |
| 2013 | 4 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 3 |
| 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.\"eventStateOrRegion\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52008'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 ANC26LA086Accident · No injuriesClass 4 · LimitedInvestigation openDehavilland DHC-2 · Igiugig, AKNTSB ANC25LA085Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 MK 1 · Soldotna, AKThe pilot’s failure to maintain clearance from rising terrain while maneuvering at low altitude.NTSB ANC25LA074Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Nelson Lagoon, AKThe pilot’s failure to maintain clearance from a creek bank while maneuvering to land.NTSB ANC25LA068Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Kokhanok, AKThe pilot’s failure to attain a proper touchdown point during landing which resulted in a hard landing.NTSB ANC24LA073Accident · No injuriesClass 3 · LimitedFinal reportDe Havilland DHC2 · Anchorage, AKA partial loss of power during takeoff climb for undetermined reasons.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 ANC24LA054Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Aleknagik, AKThe pilot’s failure to maintain pitch control of the airplane during initial climb.NTSB ANC24LA049Accident · Serious injuriesClass 3 · LimitedFinal reportDehavilland Beaver L-20A (DHC-2) · Port Alsworth, AKA partial loss of engine power for reasons that could not be determined.NTSB ANC24LA037Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Fairbanks, AKThe pilot’s improper fuel management resulting in a loss of engine power due to fuel starvation.NTSB ANC23LA071Accident · Minor injuriesClass 3 · LimitedFinal reportBell Helicopter Textron Canada 206L-4 · King Salmon, AKThe failure of both pilots to see and avoid while en route, which resulted in a midair collision.NTSB ANC23LA057Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 MK. I(L20A) · Point Baker, AKThe pilot’s failure to maintain directional control during takeoff with a quartering tailwind.NTSB ANC23LA054Accident · Serious injuriesClass 3 · LimitedFinal reportDehavilland DHC-2 MK. I(L20A) · Twin Hills, AKThe pilot’s loss of control during initial climb for reasons that could not be determined.NTSB ANC23LA052Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 · McCarthy, AKA failure of the right brake caliper bolts during landing, which resulted in a runway excursion and subsequent impact with terrain.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 ANC22LA078Accident · Minor injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 · Egegik, AKThe pilot’s loss of control during takeoff in gusting wind conditions.NTSB ANC22LA063Accident · Serious injuriesClass 4 · LimitedFinal reportDe Havilland DHC2 · Anchorage, AKThe pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in the wing exceeding its critical angle of attack, a loss of control and impact with the water.NTSB ANC22LA056Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver DHC-2 MK.1 · Bettles, AKThe pilot's failure to maintain control of the airplane during taxi operations on a riverbank with shallow water.NTSB ANC22LA050Accident · No injuriesClass 4 · LimitedFinal reportDehavilland Beaver U-6A · Kokhanok, AKThe pilot’s failure to maintain directional control during takeoff in gusting wind conditions which resulted in a loss of control and impact with the water.NTSB ANC21LA081Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 MK. I(L20A) · Kodiak, AKThe pilot’s improper landing flare, which resulted in a hard landing and nose over.NTSB ANC21LA057Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2-L-20 · Coffman Cove, AKThe pilot’s impact with a buoy on takeoff which resulted in a nose-over.NTSB ANC20LA074Accident · 7 fatalClass 3 · LimitedFinal reportDe Havilland DHC-2 · Soldotna, AKThe failure of both pilots to see and avoid the other airplane. Contributing to the accident were (1) the PA-12 pilot’s decision to fly with a known severe vision deficiency that had resulted in denial of his most recent application for medical certification…NTSB GAA20CA007Accident · No injuriesData collectionFinal reportDe Havilland Beaver DHC 2 · Kodiak, AKThe pilot's failure to maintain lateral control while landing on glassy water, which resulted in the left float touching the water, a loss of yaw control, and impact with a riverbank.NTSB GAA19CA562Accident · No injuriesData collectionFinal reportDe Havilland Beaver DHC 2 MK.1 · Kotzebue, AKThe pilot's delayed decision to abort the takeoff from water after the airplane impacted a submerged object, which resulted in insufficient airspeed for liftoff and led to the pilot steering the airplane toward a mud embankment to avoid rocks.NTSB ANC19FA035Accident · 1 fatalClass 2 · FieldFinal reportDe Havilland Beaver DHC 2 · Seldovia, AKThe airplane's floats impact with an ocean wave or swell, which exceeded the design load specifications of the flying wire assemblies and resulted in a partial separation of the float assemblies.NTSB ANC19LA028Accident · No injuriesClass 3 · LimitedFinal reportDe Havilland DHC-2 · Ketchikan, AKA loss of directional control while landing, which resulted in a water loop.NTSB ANC19FA019Accident · 2 fatalClass 2 · FieldFinal reportDe Havilland DHC 2 · Metlakatla, AKThe pilot’s inadequate compensation for a quartering tailwind during a water landing, which resulted in a loss of control and subsequent nose-over. Contributing to the accident was the company’s inadequate operational control of the flight release process,…NTSB GAA18CA581Accident · Minor injuriesData collectionFinal reportDe Havilland DHC 2 MK. I(L20A) · Kukaklek Lake, AKThe pilot’s failure to see and avoid a sand bar during a water takeoff, which resulted in the airplane impacting a river bank.NTSB GAA18CA565Accident · Minor injuriesData collectionFinal reportDe Havilland DHC 2 · Igiugig, AKThe pilot’s selection of an empty fuel tank for takeoff, which resulted in fuel starvation and the subsequent total loss of engine power.NTSB ANC18FA063Accident · 5 fatalField investigationFinal reportDe Havilland DHC-2 · Talkeetna, AKImpact with terrain for reasons that could not be determined because the airplane was not recovered due to the inaccessible nature of the accident site.NTSB ANC18FA055Accident · 1 fatalClass 2 · FieldFinal reportDe Havilland DHC-2 · Willow, AKThe pilot's exceedance of the airplane's critical angle of attack during departure climb, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's improper decision to load the airplane beyond its allowable gross weight and center…NTSB ANC18LA047Accident · Serious injuriesLimited investigationFinal reportDehavilland DHC-2 · Dillingham, AKThe pilot's failure to maintain directional control while landing in gusting wind conditions.NTSB ANC18LA025Accident · No injuriesLimited investigationFinal reportDehavilland Beaver DHC 2 · Kodiak, AKThe pilot's failure to maintain directional control during landing for reasons that could not be determined based on the available evidence.NTSB ANC17LA032Accident · Minor injuriesClass 2 · LimitedFinal reportDehavilland DHC-2 · Ketchikan, AKThe pilot's misjudgment of the takeoff distance needed to depart the lake, and his subsequent failure to maintain clearance from the water during a turn to avoid terrain, which resulted in impact with water.NTSB ANC17LA017Accident · Minor injuriesLimited investigationFinal reportBeech G18 · Metlakatla, AKAn engine power loss for reasons that could not be determined because the airplane was not recovered.NTSB ANC16LA054Accident · Serious injuriesLimited investigationFinal reportDe Havilland Beaver DHC-2 · Iliamna, AKThe pilot's decision to perform the takeoff despite calculations showing that the distance available was inadequate, which resulted in impact with terrain.NTSB ANC15CA075Accident · No injuriesData collectionFinal reportDehavilland Beaver DHC 2 MK.1 · Arctic Village, AKThe pilot's selection of an unsuitable, off-airport site, which resulted in a nose over.NTSB ANC13CA098Accident · No injuriesData collectionFinal reportDehavilland Beaver DHC 2 · Akhiok, AKThe pilot's failure to maintain directional control during takeoff in a gusty tailwind.NTSB ANC13CA087Accident · No injuriesData collectionFinal reportDehavilland DHC-2 MK. I(L20A) · Bethel, AKThe pilot's failure to maintain directional control and crosswind compensation during landing.NTSB ANC13FA054Accident · 1 fatalField investigationFinal reportDehavilland Beaver DHC-2 MK.1 · Petersburg, AKThe pilot’s failure to maintain adequate altitude above the trees, and his subsequent failure to maintain adequate airspeed while maneuvering to avoid the trees, which resulted in an inadvertent aerodynamic stall/spin and an uncontrolled descent.NTSB ANC13CA037Accident · No injuriesData collectionFinal reportDehavilland DHC-2 MK. I(L20A) · Anchorage, AKThe pilot’s failure to maintain directional control of the airplane while taxiing on a snow-covered taxiway.NTSB ANC13CA018Accident · No injuriesData collectionFinal reportDehavilland DHC-2 MK. I(L20A) · Skwentna, AKThe pilot's loss of control while landing in gusting wind conditions.NTSB ANC12CA092Accident · Minor injuriesData collectionFinal reportDehavilland Beaver U-6 · Kenai, AKThe pilot’s failure to maintain adequate ground clearance during his landing approach, which resulted in a collision with terrain.NTSB ANC12CA060Accident · No injuriesData collectionFinal reportDehavilland Beaver DHC-2 · Ketchikan, AKThe pilot’s failure to maintain directional control during a step turn on floats.NTSB ANC12LA051Accident · No injuriesLimited investigationFinal reportDehavilland DHC-2 · Talkeetna, AKThe loss of engine power after departure due to the separation of an engine cylinder.NTSB ANC12CA041Accident · No injuriesData collectionFinal reportDehavilland DHC-2 MK. I(L20A) · Talkeetna, AKThe pilot inadvertently landed with the parking brake set.NTSB ANC12LA026Accident · Serious injuriesLimited investigationFinal reportDehavilland Beaver DHC-2 · Ketchikan, AKThe pilot's decision to depart in marginal visual meteorological conditions, and his continued visual flight into instrument meteorological conditions.NTSB ANC11TA079Accident · No injuriesFinal reportDehavilland DHC-2 MK. I(L20A) · Northway, AKThe pilot's failure to identify unsuitable terrain for landing and subsequent contact with a dirt mound, resulting in the separation of the tailwheel from the airframe.NTSB ANC11LA007Accident · No injuriesLimited investigationFinal reportBeech E18S-9700 · New Stuyahok, AKThe pilot's misjudgment of the runway surface condition, resulting in an aborted landing and collision with rising terrain during the ensuing takeoff attempt.NTSB ANC10FA100Accident · 4 fatalField investigationFinal reportDehavilland DHC-2 · Katmai National Park, AKUndetermined.NTSB ANC10FA064Accident · 1 fatalField investigationFinal reportDehavilland Beaver DHC-2 MK.1 · Ketchikan, AKThe pilot’s decision to continue the flight toward his destination in significant turbulence and downdrafts, and his subsequent failure to maintain control of the airplane while flying low over rising terrain.