NTSB investigations: AiResearch TPE331 series
223 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 |
|---|---|
| 1968 | 1 |
| 1970 | 1 |
| 1976 | 2 |
| 1978 | 3 |
| 1979 | 1 |
| 1980 | 2 |
| 1981 | 6 |
| 1982 | 4 |
| 1983 | 2 |
| 1984 | 6 |
| 1985 | 7 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 3 |
| 1989 | 3 |
| 1990 | 5 |
| 1991 | 3 |
| 1992 | 5 |
| 1993 | 6 |
| 1994 | 2 |
| 1995 | 7 |
| 1996 | 7 |
| 1997 | 2 |
| 1998 | 3 |
| 1999 | 7 |
| 2000 | 6 |
| 2001 | 6 |
| 2002 | 6 |
| 2003 | 11 |
| 2004 | 10 |
| 2005 | 10 |
| 2006 | 7 |
| 2007 | 8 |
| 2008 | 6 |
| 2009 | 7 |
| 2010 | 2 |
| 2011 | 4 |
| 2012 | 4 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 5 |
| 2025 | 3 |
| 2026 | 4 |
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 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."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 WPR26LA308Accident · No injuriesClass 4 · LimitedFinal reportMitsubishi MU-2B-40 · Norton Shores, MIThe pilot’s failure to extend the landing gear before landing.NTSB DCA26LA151Accident · No injuriesClass 4 · LimitedInvestigation openFairchild SA227-AC · Denver, CONTSB WPR26LA080Accident · No injuriesClass 3 · LimitedPreliminary reportFairchild SA227-AC · Prescott, AZOn January 13, 2026, about 0624 mountain standard time, a Fairchild SA227-AC airplane, N370AE, was substantially damaged when it was involved in an accident near Prescott Municipal Airport (PRC), Prescott, Arizona. The pilot was not injured. The airplane was…NTSB WPR26FA040Accident · 2 fatalClass 3 · FieldPreliminary reportBeech B100 · Coral Springs, FLOn November 10, 2025, about 1019 eastern standard time, a Beech King Air B100, N30HG, was destroyed when it was involved in an accident near Coral Springs, Florida. The pilot and passenger were fatally injured. The airplane was operated as a Title 14 Code of…NTSB ERA25FA246Accident · 6 fatalClass 3 · FieldPreliminary reportCessna 441 · Warren, OHOn June 29, 2025, about 0654 eastern daylight time, a Cessna 441, N441LS, was destroyed when it was involved in an accident near Warren, Ohio. The airline transport pilot and five passengers were fatally injured. The airplane was operated as a Title 14 Code…NTSB WPR25MA128Accident · 6 fatalClass 3 · MajorPreliminary reportMitsubishi MU-2B-40 · Copake, NYOn April 12, 2025, about 1203 eastern daylight time, a Mitsubishi MU-2B-40, N635TA, was destroyed when it was involved in an accident near Copake, New York. The pilot and five passengers were fatally injured. The airplane was operated as a Title 14 Code of…NTSB CEN24LA291Accident · No injuriesClass 3 · LimitedFinal reportAyres S2R-G6 · Antioch, NEA total loss of engine power due to fuel contamination from an undetermined source.NTSB CEN24LA318Accident · No injuriesClass 3 · LimitedFinal reportAyres S2R · Stanwood, MIThe pilot’s failure to maintain terrain clearance during a low-level aerial application flight, which resulted in impact with terrain and a subsequent forced landing. Contributing to the accident was the location of the spray boom pressure gauge, which…NTSB WPR24LA165Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Rome, ORThe pilot’s failure to maintain airplane control during landing.NTSB WPR24FA124Accident · 1 fatalClass 3 · FieldFinal reportGulfstream 695A · San Bernardino, CAThe pilot’s continued use of the airplane’s autopilot after flight into moderate to severe icing conditions, which resulted in an exceedance of the airplane’s critical angle of attack and an aerodynamic stall.NTSB WPR24FA123Accident · 1 fatalClass 3 · FieldFinal reportAyres S2R-G10 · Derner, CAThe pilot’s failure to adequately monitor his fuel supply, resulting in fuel exhaustion, a total loss of engine power, and the airplane’s impact with terrain.NTSB WPR24LA025Accident · Serious injuriesClass 4 · LimitedFinal reportGulfstream Aerospace Commander 690C · Reno, NVThe pilot applicant’s excessive nose down pitch, and the check pilot’s delayed remedial action, which resulted in an impact with terrain.NTSB ERA23LA277Accident · No injuriesClass 3 · LimitedFinal reportRockwell International 695 · Philadelphia, PAFailure of the nose gear support structure for unknown reasons, which resulted in the nose landing gear collapsing during landing.NTSB WPR23LA072Accident · No injuriesClass 4 · LimitedFinal reportCessna 441 · Liberal, KSThe pilot’s inadequate preflight inspection, failure to set the parking brake, and his decision to exit the airplane with engines running to remove a wheel chock, resulting in the airplane’s unintended movement and subsequent collision with a hangar.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 CEN22LA195Accident · No injuriesClass 3 · LimitedFinal reportSwearingen SA226-T(B) · Denver, COThe captain’s failure to ensure that the parking brake was correctly released before takeoff, which resulted in seized brakes during landing and a subsequent loss of directional control and runway excursion.NTSB CEN22FA032Accident · 2 fatalClass 3 · FieldFinal reportBeech E-90 · Boyne City, MIThe pilot’s failure to maintain sufficient airspeed and his exceedance of the airplane’s critical angle of attack while in icing conditions, which resulted in an aerodynamic stall and subsequent ground impact.NTSB CEN21LA296Accident · No injuriesClass 4 · LimitedFinal reportGrumman Acft ENG Cor-Schweizer G-164B · Hoxie, ARThe pilot’s failure to ensure an adequate fuel supply for the intended flight.NTSB CEN21LA287Accident · No injuriesClass 3 · LimitedFinal reportGrumman G164 · Sedgwick, ARThe total loss of engine power due to the failure and disengagement of the torque sensor assembly front spur gear from its splined shouldered shaft due to a loose self-locking nut.NTSB CEN21FA215Accident · No injuriesClass 3 · FieldFinal reportSwearingen SA226TC · Englewood, COThe Cirrus pilot’s failure to maintain the final approach course for the assigned runway, which resulted in a collision with the Swearingen which was on final approach to the parallel runway. Contributing to the accident was the failure of the controller to…NTSB ERA21LA124Accident · 2 fatalClass 3 · LimitedFinal reportCessna 441 · Belvidere, TNThe pilot’s failure to follow the published instrument approach procedure by prematurely descending the airplane below the final approach fix altitude to fly under the low ceiling conditions, which resulted in controlled flight into terrain.NTSB CEN20LA215Accident · 1 fatalClass 3 · LimitedFinal reportMitsubishi MU2B · Sioux Falls, SDThe pilot’s failure to maintain control of the airplane during takeoff for reasons that could not be determined.NTSB WPR20LA172Accident · No injuriesClass 3 · LimitedFinal reportAyres S2R · Imperial, CAThe pilot's loss of control during a landing roll due to a failure of the main O-ring in the right brake assembly, which resulted in a loss of brake pressure and subsequent brake failure.NTSB CEN20LA125Accident · No injuriesClass 3 · LimitedFinal reportMitsubishi MU 2B-40 · Chilton, WIThe pilot's decision to land on the turf runway with insufficient landing performance and his subsequent loss of control during the landing roll.NTSB WPR20LA054Accident · No injuriesClass 3 · LimitedFinal reportMitsubishi MU2B · Big Piney, WYThe failure of the right propeller position to correspond to the throttle change when moved to the beta position for reasons that could not be determined based on available evidence.NTSB CEN19LA231Accident · No injuriesClass 3 · LimitedFinal reportAyres S2R · Breckenridge, MIA total loss of engine power due to a lack of oil in the engine. The source of the inflight oil leak could not be determined based on the available information.NTSB GAA19CA264Accident · No injuriesData collectionFinal reportAero Commander 695 · Mount Holly, NJThe airplane’s impact with a deer on the runway during takeoff.NTSB CEN19FA030Accident · 3 fatalClass 2 · FieldFinal reportCessna 441 · Harmon, NDThe pilot's failure to maintain control of the airplane in dark night conditions that resulted in an in-flight positive overload failure of the wings and the subsequent in-flight breakup of the airplane.NTSB WPR18LA129Accident · No injuriesClass 3 · LimitedFinal reportGulfstream AM Corp Comm Div 695A · Bishop, CAThe failure of the left main landing gear upper arm forging due to fatigue cracking and subsequent overstress, which resulted in the collapse of the landing gear during the landing roll.NTSB CEN18LA086Accident · No injuriesLimited investigationFinal reportSwearingen SA227 TT · Houston, TXThe failure of the left starter relay during engine start, which resulted in a loss of electrical and battery power during the flight and led to a forced landing with the nose landing gear not fully extended, causing substantial damage to the engines.NTSB GAA18CA098Accident · No injuriesData collectionFinal reportSwearingen SA227 · Rock Springs, WYThe pilot's failure to maintain directional control while taxiing in gusting tailwind conditions.NTSB ERA17FA181Accident · 4 fatalField investigationFinal reportMitsubishi MU2B · Eleuthera, BahamasThe pilot's intentional flight into an area of known icing and convective thunderstorm activity, which resulted in a loss of control of the airplane.NTSB GAA17CA333Accident · No injuriesData collectionFinal reportSwearingen SA227 TT · Santa Monica, CAThe pilot’s unstabilized approach after encountering wake turbulence, which resulted in a hard landing.NTSB WPR17LA030Accident · No injuriesLimited investigationFinal reportAero Commander 690 · Scottsdale, AZThe pilot’s loss of directional control during the landing roll, which resulted in the runway excursion onto the rock-covered runway safety area.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 GAA16CA527Accident · No injuriesData collectionFinal reportSwearingen SA226 · Farmingdale, NYThe pilot-in-command’s failure to extend the landing gear before landing and his failure to use the Before Landing checklist. Contributing to the accident was the pilots’ failure to maintain a sterile cockpit during landing.NTSB CEN16LA173Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G 164B · Iowa, LAThe pilot's failure to maintain directional control while landing with an inoperative right brake.NTSB CEN16WA179Accident · No injuriesForeign investigationSwearingen SA 226T · Andorra, Lleida, Spain, SpainOn April 26, 2016, about 1535 hours universal coordinated time, a Swearingen SA-226T airplane, United States registration N125WG, was substantially damaged during landing at the Andorra – La Seu d'Urgell Airport (LESU); Andorra, Lleida, Spain. The airplane…NTSB CEN16RA136Accident · 7 fatalForeign investigationMitsubishi MU 2B · Iles-de-la-Madeleine, CanadaimportNTSB CEN15LA202Accident · No injuriesLimited investigationFinal reportFairchild SA227 AC · Rifle, COThe uncontained engine failure due to the fatigue failure of the second-stage turbine rotor disk.NTSB CEN15FA136Accident · 1 fatalField investigationFinal reportCessna 441 · Argyle, TXThe pilot's failure to maintain adequate airspeed during the instrument approach in night instrument meteorological conditions, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall/spin at a low altitude.NTSB ERA14FA112Accident · 4 fatalField investigationFinal reportGulfstream AM Corp Comm Div 690 · Bellevue, TNThe pilot's failure to maintain airspeed with one engine inoperative, which resulted in a loss of control while on approach. Contributing to the accident were airframe ice accumulation due to conditions conducive to icing and the loss of engine power on one…NTSB CEN13IA107Incident · No injuriesIncident investigationFinal reportSwearingen SA227-AC · Williston, NDThe snowplow driver’s failure to ensure that the runway was clear before driving onto it, which resulted in a runway incursion with a departing airplane.NTSB WPR12LA256Accident · No injuriesLimited investigationFinal reportAyres S2R-G6 · Riverton, WYAn engine overspeed shortly after takeoff for reasons that could not be determined because postaccident examination revealed no mechanical malfunctions or failures that would have precluded normal operation.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 CEN12CA215Accident · No injuriesData collectionFinal reportCessna 441 · Battle Creek, MIThe maintenance technician did not remove the tow bar prior to the flight.NTSB CEN11CA608Accident · Minor injuriesData collectionFinal reportAyres S2R-G10 · Hot Springs, ARThe pilot's improper decision not to fully jettison the entire load of water when he realized the airplane was not climbing after takeoff.NTSB WPR11FA159Accident · No injuriesField investigationFinal reportFairchild SA227-AC · Seattle, WAThe pilot's failure to extend the landing gear, which resulted in a gear-up landing.NTSB DCA11WA032Accident · 4 fatalForeign investigationGrumman G21 · Al Ain, United Arab Emirates