NTSB investigations: Continental GTSIO-520 series
33 cases on aircraft whose registry engine model is Continental GTSIO-520 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
| 1974 | 1 |
|---|---|
| 1976 | 1 |
| 1984 | 2 |
| 1986 | 1 |
| 1987 | 1 |
| 1995 | 3 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 2001 | 3 |
| 2002 | 3 |
| 2004 | 1 |
| 2005 | 1 |
| 2010 | 1 |
| 2013 | 1 |
| 2016 | 2 |
| 2019 | 2 |
| 2021 | 2 |
| 2023 | 2 |
| 2024 | 2 |
| 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17046', '17039'))
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 ('17046', '17039'))
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 ERA26LA314Accident · Serious injuriesClass 4 · LimitedFinal reportCessna 421 · Fulton, KYThe misfuelling of the airplane by the refueler. Contributing to the accident was the pilot’s failure to verify that the airplane had been properly fueled prior to departing on the accident flight.NTSB WPR24FA289Accident · 3 fatalClass 3 · FieldPreliminary reportCessna 421C · Fairview, OROn August 31, 2024, about 1030 Pacific daylight time, a Cessna 421C, N421GP was destroyed when it was involved in an accident near Fairview, Oregon. The two pilots and one person on the ground were fatally injured. The airplane was operated as a Title 14 Code…NTSB GAA24WA258Accident · 3 fatalClass 5 · ForeignCessna 421C · Tofino, CanadaNTSB CEN24LA061Accident · No injuriesClass 3 · LimitedFinal reportCessna 421C · McGregor, TXThe failure of the spring pin in the right propeller governor, which precluded the pilot from controlling the propeller pitch to maintain engine rpm, resulting in a loss of engine thrust, excessive drag, and the subsequent forced landing to a field.NTSB ERA23LA180Accident · No injuriesClass 4 · LimitedFinal reportCessna 421C · Leesburg, VASeparation of the left man landing gear scissor hardware, which resulted in a loss of directional control and subsequent runway excursion during landing.NTSB WPR21FA270Accident · 2 fatalClass 3 · FieldFinal reportCessna 421C · Monterey, CAThe pilot’s failure to maintain airplane control due to spatial disorientation during an instrument departure procedure in instrument meteorological conditions which resulted in a collision with terrain. Contributing to the accident was the pilot’s lack of…NTSB CEN21LA315Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 421C · Longmont, COThe loss of performance for reasons that could not be determined.NTSB GAA19CA335Accident · No injuriesData collectionFinal reportCessna 421 · Moriarty, NMThe pilot's improper landing flare in gusting wind conditions, which resulted in a hard landing.NTSB CEN19FA082Accident · 2 fatalClass 2 · FieldFinal reportCessna 421 · Canadian, TXThe pilot's failure to maintain control of the airplane while in instrument meteorological conditions with icing conditions present, which resulted in an aerodynamic stall and spin into terrain.NTSB GAA17CA058Accident · No injuriesData collectionFinal reportBeech 58TC · Valdosta, GAThe pilot’s failure to ensure that adequate fuel was onboard for the flight, which resulted in fuel exhaustion and the loss of engine power.NTSB WPR16LA092Accident · No injuriesLimited investigationFinal reportCessna 421C · Death Valley, CAA runway overrun for reasons that could not be determined based on the available information.NTSB WPR13LA214Accident · No injuriesLimited investigationFinal reportCessna 421A · Oakland, CAA failure of the left main landing gear pivot bolt in overstress during landing.NTSB CEN10LA166Accident · No injuriesLimited investigationFinal reportCessna 421B · Artesia, NMA loss of engine power due to fuel starvation as a result of the pilot's improper fuel management.NTSB NYC05LA116Accident · No injuriesLimited investigationFinal reportCessna 421B · Medina, OHAn overload failure of the left main landing gear attachment assembly.NTSB FTW04FA243Accident · 2 fatalField investigationFinal reportCessna 421C · Bee Caves, TXThe pilot's improper positioning of the fuel selector valves, which resulted in a loss of power to the left engine due to fuel exhaustion. After the power loss, the pilot failed to follow checklist procedures and did not secure (feather) the left propeller,…NTSB DEN03FA025Accident · 2 fatalField investigationFinal reportCessna 421 · Akron, COThe fractured connecting rods and the pilot not maintaining aircraft control following the engine failure. Factors contributing to the accident were the low altitude, the pilot not maintaining minimum controllable airspeed following the engine failure, the…NTSB NYC02LA190Accident · No injuriesLimited investigationFinal reportCessna 421 · Ithaca, NYThe pilot's failure to maintain directional control during the landing roll. A factor in the accident was the wet runway.NTSB CHI02LA100Accident · No injuriesLimited investigationFinal reportPiper PA-46-310P · Hastings, MNThe engine failure due to oil starvation as a result of the fatigue fracture of the number 6 piston. Additional factors were the unsuitable terrain for landing encountered by the pilot, and the inadequate piston design by the manufacturer.NTSB FTW01LA186Accident · No injuriesLimited investigationFinal reportCessna 421B · New Braunfels, TXthe pilot's inadequate flare of the airplane resulting in a hard landing. A contributing factor was the crosswind.NTSB MIA01FA140Accident · 1 fatalField investigationFinal reportCessna 404 · Pena Pobre, PRfailure of the pilot-in-command to maintain altitude/clearance, resulting in an in-flight collision with rising terrain.NTSB ATL01FA036Accident · 5 fatalField investigationFinal reportCessna 421 · Munford, ALThe pilot continued visual flight into instrument weather conditions that resulted in the inflight collision with a river bank. Factors were reduced visibility and dark night.NTSB FTW99LA012Accident · Minor injuriesLimited investigationFinal reportCessna 421C · Eagle Pass, TXA downdraft, which exceeded the aircraft's climb performance. A factor was the thunderstorms in the vicinity of the airport.NTSB CHI98LA032Accident · No injuriesLimited investigationFinal reportCessna 421A · Tomahawk, WIthe elevator trim tab bolt backed out, allowing the trim tab to flutter, and destroy the elevator. The factors involved were improper annual inspection by the maintenance personnel, and the inadequate aircraft preflight done by the pilot.NTSB LAX96LA296Accident · Serious injuriesLimited investigationFinal reportCessna 421C · Avalon, CAthe pilot's failure to initiate a go-around when a landing overshoot became apparent. Factors which contributed to the accident were: the pilot's excessive airspeed and misjudged distance during landing, his lack of flying experience in the Cessna, and…NTSB FTW96FA073Accident · 6 fatalField investigationFinal reportCessna 421C · Cleveland, OKthe pilot's continued VFR flight into instrument meteorological conditions (IMC), and his failure to maintain control of the airplane after encountering adverse weather conditions, which resulted in a stall/spin. Factors relating to the accident were: pilot…NTSB LAX95FA319Accident · 8 fatalField investigationFinal reportCessna 421C · Beaver Dam, AZFailure of the pilot to maintain adequate airspeed, while maneuvering on approach, which resulted in an inadvertent stall/spin and uncontrolled collision with terrain. Factors relating to the accident were: the pilot allowed the aircraft weight and balance…NTSB MIA95TA199Accident · No injuriesFinal reportCessna 404 · Raiford, FLThe pilot's selection of unsuitable terrain for landing.NTSB LAX87FA306Accident · No injuriesField investigationFinal reportCessna 421C · Clifton, AZThe flt deptd ry 25 at greenlee cty arpt, Clifton, AZ on a VFR flt to phoenix, AZ. The plt & gnd witnesses rptd that shortly after lift-off, grayish/white smoke emanated from the left engine. The plt was unable to feather the prop, circled the arpt abt 2…NTSB DEN87FA016Accident · 1 fatalField investigationFinal reportCessna 421C · Butte, MTPlt was attempting the vor-b instrument apch to Butte, MT arpt. Plt reported over the coppertown VORTAC inbound on the arpt. The procedure turn inbound course to the VORTAC is 124 degrees. The inbound course to the arpt is 094 degrees. The acft wreckage was…NTSB FTW85FA019Accident · 1 fatalField investigationFinal reportCessna 421C · Addison, TXAprx 7 min after takeoff (at 1441), the plt declared an emergency & said the l eng had lost power. He feathered the eng,diverted back twd the arpt & dscndd to VFR conds below the clds. At 1448, the plt said he had the arpt in sight & turnedonto a left…NTSB CHI84LA135Accident · No injuriesLimited investigationFinal reportCessna 421C · Joliet, ILThe acft picked up moderate to severe icing which the pilot thought he had shaken off as he cycled the deice boots. He saw the ice come off of the wings but could not see the horizontal stabilizer. On short final at 100 KTS the control yoke began vibrating.…NTSB DEN76DTM32Accident · No injuriesClosedCessna T210L · Navajo Mtn, UTNTSB DEN74DTC32Accident · No injuriesClosedCessna 421B · Jeffrey City, WY