Fatal NTSB investigations: AiResearch TPE331 series
58 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
| 1979 | 1 |
|---|---|
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 5 |
| 1985 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1993 | 1 |
| 1995 | 1 |
| 1997 | 1 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 2 |
| 2003 | 4 |
| 2004 | 6 |
| 2005 | 2 |
| 2006 | 4 |
| 2007 | 2 |
| 2009 | 1 |
| 2011 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2024 | 2 |
| 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.\"highestInjuryLevel\" = 'Fatal'
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."highestInjuryLevel" = 'Fatal'
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 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 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 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 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 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 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 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 CEN16RA136Accident · 7 fatalForeign investigationMitsubishi MU 2B · Iles-de-la-Madeleine, CanadaimportNTSB 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 DCA11WA032Accident · 4 fatalForeign investigationGrumman G21 · Al Ain, United Arab EmiratesNTSB CEN10FA028Accident · 4 fatalField investigationFinal reportBeech B100 · Benavides, TXThe pilot's failure to avoid severe weather, and the air traffic controller's failure to provide adverse weather avoidance assistance, as required by Federal Aviation Administration directives, both of which led to the airplane's encounter with a severe…NTSB ANC07FA103Accident · 1 fatalField investigationFinal reportShort Bros. SC-7 · McGrath, AKA collision with trees during takeoff-initial climb for an undetermined reason.NTSB CHI07LA207Accident · 1 fatalLimited investigationFinal reportWeatherly 620B · Wyoming, ILThe pilot's failure to maintain clearance with the power lines during the aerial application flight. Contributing to the accident were the power lines and the low altitude.NTSB DEN06MA119Accident · 1 fatalMajor investigationFinal reportMitsubishi MU-2B-35 · Argyle, FLthe pilot's inadvertent flight into thunderstorm activity that resulted in the loss of control, design limits of the airplane being exceeded and subsequent in-flight breakup. A contributing factor was the failure of air traffic control to use available radar…NTSB NYC06MA208Accident · 2 fatalMajor investigationFinal reportMitsubishi MU-2B-40 · Bunnell, FLThe pilot's inadvertent encounter with thunderstorms.NTSB ANC06FAMS1Accident · 3 fatalMissing aircraftFinal reportAero Commander 690A · Anchorage, AKUndetermined; the airplane and its occupants are missing.NTSB MIA06FA120Accident · 1 fatalField investigationFinal reportMitsubishi MU-2B-60 · Fort Pierce, FLthe pilot’s loss of aircraft control during the initial climb which was precipitated by the sudden loss of thrust and increase in drag from the right engine, and the pilot’s failure to adhere to the published emergency procedures regarding the position of the…NTSB DFW05FA202Accident · 1 fatalField investigationFinal reportMitsubishi MU-2B-60 · Parker, COThe pilot’s failure to fly a stabilized instrument approach at night which resulted in controlled flight into terrain. Contributing factors were; the dark night, low clouds, the inadequate design and function of the airport facility’s Minimum Safe Altitude…NTSB LAX05LA151Accident · 1 fatalLimited investigationFinal reportGulfstream 695A · North Las Vegas, NVThe incapacitation of the pilot.NTSB DEN05FA034Accident · 2 fatalField investigationFinal reportMitsubishi MU-2B-60 · Englewood, COthe pilot's failure to maintain minimum controllable airspeed during the night visual approach resulting in a loss of control and uncontrolled descent into terrain. A contributing factor was the precautionary shutdown of the left engine for undetermined…NTSB IAD05FA023Accident · 6 fatalClass 1 · FieldFinal reportCASA 212-200-CC · Bamiyan, Afghanistanthe captain's inappropriate decision to fly a nonstandard route and his failure to maintain adequate terrain clearance, which resulted in the inflight collision with mountainous terrain. Factors were the operator's failure to require its flight crews to file…NTSB DCA05MA004Accident · 13 fatalClass 1 · MajorFinal reportBritish Aerospace Jetstream 32 · Kirksville, MOthe pilots' failure to follow established procedures and properly conduct a nonprecision instrument approach at night in IMC, including their descent below the minimum descent altitude (MDA) before required visual cues were available (which continued…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 LAX04FA165Accident · 2 fatalField investigationFinal reportMitsubishi MU-2B-40 · Napa, CAThe pilot's failure to maintain control of the airplane following a shutdown of the left engine during a night visual approach. A factor contributing to the accident was the dark night.NTSB DEN04FA035Accident · 1 fatalField investigationFinal reportRockwell 690A · Cortez, COthe pilot's inadequate planned approach and his failure to maintain airspeed which resulted in a stall. Contributing factors were low altitude flight maneuvering in an attempt to lose excessive altitude and realign the airplane for landing, and his failure to…NTSB ATL04FA049Accident · 2 fatalField investigationFinal reportCessna 441 · Vestavia Hills, ALThe pilot's failure to maintain adequate airspeed during climb in icing conditions, which resulted in an inadvertent stall / spin of the airplane and subsequent uncontrolled descent and collision with terrain. A factor was the accumulation of airframe ice.NTSB SEA04FA023Accident · 1 fatalField investigationFinal reportFairchild Swearingen SA227-AT · Spokane, WAThe pilot-in-command's failure to maintain proper glidepath alignment during an ILS approach in poor weather resulting in collision with trees and terrain. Contributing factors were the unreliable status of the primary (NAV 1) ILS receiver (leaving the pilot…NTSB FTW03WA227Accident · 1 fatalForeign investigationAero Commander 690 · Soto La Marina, MexicoNTSB CHI03LA278Accident · 1 fatalLimited investigationFinal reportAyres S2R-G6 · Breckenridge, MIThe pilot's failure to maintain clearance from the powerlines during the aerial application pass rendering the airplane uncontrollable. The powerlines were a factor.NTSB IAD02FA052Accident · 1 fatalField investigationFinal reportAyres S-2R · Swanton, MDThe pilot's failure to maintain visual separation from a set of known, yet unmarked power lines.NTSB ATL02FA031Accident · 5 fatalField investigationFinal reportCessna 441 · Rio Grande, PRThe pilot continued visual flight flight into instrument flight conditions resulting in an in-flight collision with terrain. Low clouds were a factor.NTSB DEN01FA113Accident · 2 fatalField investigationFinal reportMitsubishi MU-2B-20 · Cerrillos, NMthe pilot's loss of aircraft control inflight for reasons undetermined. Contributing factors were the pilot's inadequate transition/upgrade training and his total lack of experience in aircraft make/model.NTSB FTW01FA111Accident · 2 fatalField investigationFinal reportMitsubishi MU-2B-40 · The Woodlands, TXThe pilot's failure to maintain airplane control following a loss of right engine power, which resulted in impact with terrain in an uncontrolled descent. A contributing factor was the loss of right engine power as a result of the fatigue failure of the…NTSB CHI01FA032Accident · 1 fatalField investigationFinal reportSwearingen SA226TC · Fort Wayne, INThe indicated failure of the right hand AC bus during takeoff with low ceiling. The factors were the low ceiling, night, and the execssive workload the pilot experienced on takeoff with an electrical failure without a second in command.NTSB SEA98FA023Accident · 2 fatalField investigationFinal reportAero Commander 690A · Yakima, WAA loss of aircraft control for undetermined reasons.NTSB LAX95LA269Accident · 1 fatalLimited investigationFinal reportRockwell S-2R · Tulare, CAfailure of the pilot to see and avoid power lines along his route of flight.NTSB CHI93FA378Accident · 2 fatalField investigationFinal reportAero Commander 690A · Lansing, MIwas the pilot-in-command not maintaining aircraft control during the intermittent operation of the electrically operated attitude gyro. Factor's associated with this accident are an fluctuating (intermittent) electrical system inverter and the…NTSB DCA89LA012Accident · 1 fatalLimited investigationFinal reportMitsubishi MU-2J · Missing (Pacific Ocean)During a flt at night from majuro, marshall islands to cairns, australia, the plt requested a dscnt from FL 190 to 12,000 to remove ice from the airframe. Later, he requested a climb to FL 200. After starting the climb, he made a mayday call to sidney flt…NTSB DCA87MA030Accident · 2 fatalMajor investigationFinal reportCASA C-212-CC · Mayaguez, PRAfter several maintenance adjustments of the right propeller and flight idle fuel flow, the aircraft was test flown and released for flight. Several pilots continued to note descrepancies concerning the right propeller system. Adjustments were made and the…NTSB CHI86FA172Accident · 3 fatalField investigationFinal reportCessna 441 · Norton Shores, MIN6857E was transporting executives from holland, MI, to muskegon. The pilot was executing an asr approach to runway 06. The mda is 537 ft AGL. Co-pilot called out 1200 feet then below 1000 feet, pilot continued approach. Aircraft struck trees two miles from…NTSB CHI86MA025Accident · 5 fatalMajor investigationFinal reportCessna 441 · Derry, PADrg arrival, the plt was advised the destn wx was: estd 500' overcast, vis 1 mi with fog, arpt blo mins. The plt electedto make an NDB rwy 23 apch, but said he would divert if a missed apch was made. He was provided radar vectors & was clrdfor the apch. At…NTSB FTW85LAMS2Accident · 1 fatalFinal reportSwearingen SA-226T · MissingA distress message was received from the pilot stating he was 100 miles south of grand isle, LA, and had lost an eng andwas unable to maintain altitude. A second message was received shortly afterwards stating that the aircraft was at 1500 feet and the pilot…NTSB FTW85FA086Accident · 1 fatalField investigationFinal reportCessna 441 · Marble Falls, TXThe acft crashed aprx 1.5 miles south of the departure end of rwy 17 during an attempted rwy 17 NDB apch. The acft was cleared for the apch at 2012 CST and the plt canceled IFR reporting the arpt in sight at 2014. A witness located aprx 1 mile south of the…NTSB DEN84MA266Accident · 4 fatalMajor investigationFinal reportAero Commander 690 · Little America, WYAbout 10 min after takeoff at 1005 MDT, the plt was cleared to climb to FL 190. This was atc's last communication with the acft. At 1030:39, the controller attempted to contact the plt to advise that he had lost radar contact & to recycle the transponder &…