NTSB investigations: Pratt & Whitney PT6A series, AK
46 cases on aircraft whose registry engine model is Pratt & Whitney PT6A 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
| 1980 | 1 |
|---|---|
| 1986 | 1 |
| 1987 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1999 | 3 |
| 2000 | 2 |
| 2002 | 4 |
| 2003 | 3 |
| 2004 | 2 |
| 2005 | 3 |
| 2007 | 2 |
| 2008 | 2 |
| 2011 | 2 |
| 2013 | 1 |
| 2014 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 1 |
| 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\" = '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 ('52032', '52034'))
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 ('52032', '52034'))
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 ANC25LA110Accident · No injuriesClass 4 · LimitedFinal reportCessna 208B · Healy, AKThe pilot’s failure to maintain directional control during the departure roll resulting in a collision with a tractor/loader.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 ANC20LA020Accident · No injuriesClass 3 · LimitedFinal reportCessna 208 · Hooper Bay, AKThe pilot’s decision to depart from a contaminated runway, and his failure to make a timely decision to abort the takeoff when the airplane was not accelerating as expected. Contributing to the accident was the pilot’s decision to depart in limited visibility…NTSB ANC20LA015Accident · Serious injuriesClass 3 · LimitedFinal reportBeech 200 · Unalaska, AKThe pilot’s improper decision to takeoff downwind and to load the airplane beyond its allowable gross weight and center of gravity limits, which resulted in an aerodynamic stall and loss of control. Contributing to the accident was the inadequacy of the…NTSB ANC19LA031Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 208 · Bethel, AKThe pilot’s failure to maintain adequate airspeed while maneuvering during an attempted go-around, which resulted in an exceedance of the airplane's critical angle of attack and an aerodynamic stall at low altitude. Contributing to the accident, was the…NTSB ANC19FA012Accident · 3 fatalClass 2 · FieldFinal reportBeech 200 · Kake, AKA loss of control for reasons that could not be determined based on the available information.NTSB GAA18CA187Accident · No injuriesData collectionFinal reportBeech 99 · King Salmon, AKThe pilot’s failure to maintain an adequate approach path and runway centerline during the initial landing, which resulted in a hard landing to the left of the runway and damage to the landing gear and wing.NTSB ANC18LA005Accident · No injuriesLimited investigationFinal reportRaytheon B200 · Anchorage, AKThe pilot's failure to extend the landing gear before landing, which resulted in a gear-up landing. Contributing to the accident was the pilot's fatigue and complacency.NTSB ANC17FA021Accident · 1 fatalField investigationFinal reportCessna 208B · Chignik Lake, AKThe pilot's continued visual flight rules flight into an area of mountainous terrain and instrument meteorological conditions, which resulted in controlled flight into terrain (CFIT). Contributing to the accident was the company's failure to provide the pilot…NTSB ANC17MA001Accident · 3 fatalClass 1 · MajorFinal reportCessna 208B · Togiak, AKThe flight crew's decision to continue the visual flight rules flight into deteriorating visibility and their failure to perform an immediate escape maneuver after entry into instrument meteorological conditions, which resulted in controlled flight into…NTSB ANC16FA052Accident · Minor injuriesField investigationFinal reportCessna 210-5 · Wasilla, AKThe failure of both pilots to see and avoid each other while landing at a non-tower-controlled airport, which resulted in a midair collision. Contributing to the accident was the absence of radio calls from the Cessna during the traffic pattern preceding the…NTSB GAA16CA109Accident · Minor injuriesData collectionFinal reportCessna CE-208 · Hooper Bay, AKThe pilot's failure to identify the runway, resulting in the airplane touching down a few feet to the right of the runway.NTSB ANC14CA044Accident · No injuriesData collectionFinal reportCessna 208B · Egegik, AKThe pilot's loss of situational awareness during the takeoff roll resulting in a collision with a refrigeration trailer.NTSB ANC14CA036Accident · No injuriesData collectionFinal reportCessna 208B · Aniak, AKThe pilot's failure to maintain clearance from a forklift while taxiing.NTSB ANC14FA022Accident · 2 fatalField investigationFinal reportCessna 208B · Kwethluk, AKThe check airman's delayed remedial action and initiation of a recovery procedure after a simulated pitch trim excursion, which resulted in a loss of airplane control.NTSB ANC14MA008Accident · 5 fatalMajor investigationFinal reportCessna 208B · Saint Marys, AKThe pilot's decision to initiate a visual flight rules approach into an area of instrument meteorological conditions at night and the flight coordinators' release of the flight without discussing the risks with the pilot, which resulted in the pilot…NTSB ANC11LA048Accident · No injuriesLimited investigationFinal reportDehavilland DHC-3T · Bettles Field, AKThe pilot's selection of unsuitable terrain for the landing, which resulted in a loss of directional control.NTSB ANC11LA009Accident · No injuriesLimited investigationFinal reportCessna 208B · Kipnuk, AKThe pilot’s decision to land long on the icy snow-covered runway, resulting in a runway excursion and collision with terrain.NTSB ANC09LA004Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe failure of both pilots to maintain adequate clearance/distance from each other at the taxiway intersection to avoid a collision. Contributing to the accident was a lack of clear and concise instruction to either airplane by the ground controller to…NTSB ANC08LA031Accident · Minor injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe pilot's selection of unsuitable terrain for landing. Contributing to the accident were snow-covered terrain, blowing snow and flat lighting conditions.NTSB ANC08LA027Accident · Serious injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe pilot's failure to adequately remove frost contamination from the airplane, which resulted in a loss of control and subsequent collision with terrain during an emergency landing after takeoff.NTSB ANC07FA073Accident · 4 fatalField investigationFinal reportPiper PA-46-350P · Sitka, AKThe pilot's failure to maintain altitude/distance from obstacles during an IFR circling approach, and his failure to follow the instrument approach procedure. Contributing to the accident was clouds.NTSB ANC06CA012Accident · No injuriesData collectionFinal reportCessna 208 · Brevig Mission, AKThe pilot's inadequate compensation for crosswind conditions, which resulted in the left wing striking the ground while taxiing. A factor in the accident was a crosswind.NTSB ANC06CA011Accident · No injuriesData collectionFinal reportCessna 208B · Newtok, AKThe pilot's inadequate compensation for gusting crosswind conditions, which resulted in the airplane exiting the runway, encountering snow, and the nose gear collapsing. Factors associated with the accident were the gusting wind and the icy runway.NTSB ANC05IA048Incident · No injuriesIncident investigationFinal reportReims F406 · Nome, AKThe failure of the nose gear up lock actuator bracket during the landing approach due to fatigue cracking, which resulted in a nose wheel up landing. A factor associated with the incident is the mechanical binding of the nose wheel locking mechanism.NTSB ANC04LA054Accident · No injuriesLimited investigationFinal reportCessna 208B · Egegik, AKThe captain's improper evaluation of the weather conditions and improper decision to taxi the airplane in high gusting wind conditions which resulted in the airplane's right wing striking the ground. A contributing factor was the high gusting wind.NTSB ANC04LA032Accident · No injuriesLimited investigationFinal reportCessna 208B · Toksook Bay, AKThe pilot's inadequate planning and decision to initiate a takeoff into a crosswind that exceeded the airplane's demonstrated crosswind component, which resulted in a loss of directional control during the takeoff roll, and subsequent collision with terrain…NTSB ANC03FA096Accident · 2 fatalField investigationFinal reportReims 406 · Barrow, AKAn in-flight collision with ocean waters while maneuvering for an undetermined reason.NTSB ANC03LA071Accident · Serious injuriesLimited investigationFinal reportCessna 208B · Kotzebue, AKThe airplane encountered unforecast turbulence, which resulted in serious injury to the pilot.NTSB ANC03LA030Accident · No injuriesLimited investigationFinal reportCessna 208B · Russian Mission, AKThe failure of the pilot to use a tail stand while loading passengers, which resulted in the airplane's tail impacting the ground.NTSB ANC02LA079Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6 · Toksook Bay, AKA bird strike during takeoff, which resulted in damage to the right wing.NTSB ANC02LA053Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Ketchikan, AKThe failure of a ground handler to follow company proceedure/directives, and his premature release of a mooring line. Factors associated with the accident were the congested operations area, and the operator's failure to provide adequate safe zones for the…NTSB ANC02FA020Accident · No injuriesField investigationFinal reportCessna 208B · Barrow, AKThe pilot's continued flight into adverse weather conditions, and an inadvertent stall. Factors associated with the accident are fog, obscuration, and icing conditions.NTSB ANC02LA016Accident · No injuriesLimited investigationFinal reportCessna 208B · Tununak, AKThe pilot's selection of unsuitable terrain for landing. Factors associated with the accident are snow drifts across the runway, and excessive braking during the rearward roll.NTSB ANC00LA033Accident · No injuriesLimited investigationFinal reportCessna 208B · Holy Cross, AKAn in-flight separation of a main landing gear tire mud flap, and subsequent impact with the horizontal stabilizer.NTSB ANC00LA029Accident · Minor injuriesLimited investigationFinal reportPiper PA-31-T3 · Kotzebue, AKThe pilot descended below the minimum descent altitude. Factors associated with this accident were the task overload of the pilot during the instrument approach, and not performing a level off.NTSB ANC00LA017Accident · No injuriesLimited investigationFinal reportCessna 208B · Bethel, AKThe pilot's inadequate preflight and his failure to remove snow and airframe ice from the airplane.NTSB ANC99LA107Accident · No injuriesLimited investigationFinal reportde Havilland DHC-6-300 · Ketchikan, AKA failure of ground handling personnel to verify a release procedure/directive, and removal of the airplane's tiedown, and subsequent collision with a parked airplane.NTSB ANC99LA066Accident · No injuriesLimited investigationFinal reportde Havilland DHC 2 MK III · Anchorage, AKThe certificated flight instructor's inadequate supervision of the duel student. Factors associated with the accident were the student's inadvertent stall, and a surging turboshaft engine.NTSB ANC98IA004Incident · No injuriesIncident investigationFinal reportCessna 208B · Kasigluk, AKinadequate inspection of the aileron by company maintenance personnel, and the pilot's inadequate preflight inspection of the aileron, which led to the jamming of the left aileron due to loose balance weight retaining screws.NTSB ANC96LA076Accident · Minor injuriesLimited investigationFinal reportBeech 99C · Barrow, AKan in-flight collision with a bird.NTSB ANC92LA123Accident · No injuriesLimited investigationFinal reportBeech C99 · Nuiqsut, AKThe pilot's improper inflight planning/preparation, and his failure to attain the proper touchdown point. Contributing to the accident was the downdraft.NTSB ANC91FA142Accident · No injuriesField investigationFinal reportCessna 208 · Dillingham, AKThe pilot's inattentive preflight inspection which resulted in his failure to properly secure the engine oil tube filler cap resulting in the loss of engine oil and oil pressure and the pilot's failure to properly compensate for wind conditions during the…NTSB ANC88FA022Accident · Minor injuriesField investigationFinal reportCessna 208 · Bethel, AKThe plt had planned to back taxi for takeoff on rwy 36. The tower controller asked if a rwy 18 departure would be acceptable to accommodate an arriving acft & the plt accepted a clnc. He started his takeoff with 3900' remaining on the 6399' rwy. After initial…NTSB ANC86LA147Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Port Alsworth, AKThe pilot was unable to avoid a large floating log in his water lane path during takeoff. He struck the log, lost control of the airplane and crashed.NTSB ANC80FA025Accident · Minor injuriesClosedDehavnd Can DHC-6 · Kenai, AK