NTSB investigations: AiResearch TPE331 series, AK
19 cases on aircraft whose registry engine model is AiResearch TPE331 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
| 1966 | 1 |
|---|---|
| 1982 | 1 |
| 1992 | 1 |
| 2000 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 3 |
| 2008 | 3 |
| 2009 | 1 |
| 2012 | 1 |
| 2016 | 1 |
| 2022 | 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.\"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 ('01514', '01517'))
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 ('01514', '01517'))
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 WPR26FA309Accident · 8 fatalClass 3 · FieldPreliminary reportCessna 441 · Cape Newenham, AKOn August 20, 2026, at about 1145 Alaska daylight time, a Cessna 441, N128EZ, was destroyed when it was involved in an accident near Cape Newenham, Alaska. The two pilots and six passengers were fatally injured. The airplane was operated as a Title 14 Code of…NTSB ANC22LA042Accident · No injuriesClass 4 · LimitedFinal reportShort Bros. & Harland SC7 · Chisana, AKThe pilot’s selection of an unsuitable landing site, which resulted in the nosewheel collapsing.NTSB ANC17FA004Accident · 1 fatalField investigationFinal reportFairchild Heli-Porter Pilatus PC-6 · Port Alsworth, AKThe airplane's collision with mountainous terrain while operating in an area of reduced visibility and icing conditions. Contributing to the accident was the pilot's inadequate preflight planning, which would have identified deteriorating weather conditions…NTSB ANC12CA036Accident · No injuriesData collectionFinal reportShort Bros. & Harland SC7 Series 3 · Chefornak, AKThe pilot's misidentification of a nearby snow-covered road as the snow-covered runway in flat light conditions.NTSB ANC09LA104Accident · No injuriesLimited investigationFinal reportCASA 212-200 · Savoonga, AKThe pilot’s failure to maintain directional control during the landing roll in a gusting crosswind.NTSB ANC09LA009Accident · Minor injuriesLimited investigationFinal reportConstrucciones Aeronauticas CASA-212 · Toksook Bay, AKThe flight crew’s inability to adjust/increase power to the right engine during the landing approach due to an in-flight disconnect of the engine power control linkage, resulting in a loss of control of the airplane. Contributing to the accident was the…NTSB ANC08CA057Accident · No injuriesData collectionFinal reportFairchild Swearingen SA 227-AC · Anchorage, AKThe flightcrew's misjudged flare while landing.NTSB ANC08IA033Incident · No injuriesIncident investigationFinal reportFairchild SA227-AC · Dutch Harbor, AKThe disengagement of the rudder control cable and loose rudder cable retaining pins. A factor contributing to the accident was a wind gust.NTSB ANC07FA103Accident · 1 fatalField investigationFinal reportShort Bros. SC-7 · McGrath, AKA collision with trees during takeoff-initial climb for an undetermined reason.NTSB ANC07LA095Accident · No injuriesLimited investigationFinal reportShort Bros. SC-7 · McGrath, AKThe pilot's selection of unsuitable terrain for landing and subsequent nose gear collapse during the landing roll. Contributing to the accident was the soft terrain.NTSB ANC07LA032Accident · No injuriesLimited investigationFinal reportBeech D18S · Levelock, AKThe pilot's misjudged flare, which precipitated a hard landing, and damage to the main landing gear, resulting in a main landing gear collapse during the landing roll. A factor contributing to the accident was the overload failure of the main landing gear…NTSB ANC06FAMS1Accident · 3 fatalMissing aircraftFinal reportAero Commander 690A · Anchorage, AKUndetermined; the airplane and its occupants are missing.NTSB ANC05LA130Accident · No injuriesLimited investigationFinal reportCessna 441 · Anchorage, AKThe pilot's failure to lower the airplane's landing gear during landing, which resulted in an inadvertent wheels up landing.NTSB ANC04FA063Accident · 1 fatalField investigationFinal reportBeech C-45H · Kodiak, AKThe pilot's failure to follow proper IFR procedures by not adhering to the published missed approach procedures, which resulted in an in-flight collision with tree-covered terrain. Factors contributing to the accident were a low ceiling, fog, rain, and the…NTSB ANC03LA062Accident · Minor injuriesLimited investigationFinal reportSwearingen SA-226T · Goodnews, AKThe flight crew's inadequate evaluation of the weather conditions, which resulted in their inadequate compensation for the wind conditions, and subsequent undershoot. A contributing factor in the accident was a downdraft.NTSB ANC00LA042Accident · No injuriesLimited investigationFinal reportShort Brothers SC7 · Delta Junction, AKThe pilot's inadequate compensation for wind conditions during landing. Factors associated with the accident were an unfavorable wind, a crosswind, and an inadvertent swerve.NTSB ANC92IA100Incident · No injuriesIncident investigationFinal reportFairchild SA227-AC · Dillingham, AKThe pilot in command's failure to maintain a visual lookout. Factors were the drizzle and fog and the impossibility of updating the recorded weather information by ATC personnel.NTSB ANC83IA010Incident · Minor injuriesIncident investigationFinal reportShort Bros. SC7 Series 3 · Barrow, AKThe aircraft was on a round trip flight from Barrow, AK to point hope, AK and return. After landing at point hope, there was a 20 min delay while waiting for the ground crew. The pilot stated that he ran the engines for some 10 min or so due to the high winds…NTSB ANC67A0021Accident · No injuriesClosedSikorsky S-55 · Galena, AK