NTSB investigations: Continental TSIO-520 series, MT

35 cases on aircraft whose registry engine model is Continental TSIO-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

19742026
NTSB investigations: Continental TSIO-520 series, MT per year, 1974–2026: 35 cases
19741
19781
19792
19811
19822
19852
19861
19891
19911
19921
19931
19943
19961
20011
20021
20031
20041
20052
20061
20071
20091
20101
20111
20131
20152
20161
20171
20261

Latest 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\" = 'MT' 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 ('17040'))
  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.

NTSB WPR27LA002Accident · No injuriesClass 3 · LimitedInvestigation openCessna P210N · Stevensville, MTOct 4, 2026 · N94PSNTSB WPR17LA064Accident · Minor injuriesLimited investigationFinal reportBeech A36TC · Stevensville, MTThe pilot's decision to conduct a takeoff with a tailwind on an upsloping runway in an overweight airplane, which resulted in the airplane having insufficient energy to climb out of ground effect.Feb 23, 2017 · N3803J · Substantial damageNTSB WPR16LA171Accident · No injuriesClass 3 · LimitedFinal reportCessna 310R · Schafer Meadows, MTA loss of directional control while landing, which resulted in a runway excursion and landing gear collapse for reasons that could not be determined.Jun 26, 2016 · N455TB · Substantial damageNTSB WPR15LA229Accident · No injuriesLimited investigationFinal reportCessna TU206G · Saint Ignatius, MTMaintenance personnel’s failure to tighten a fuel line, which resulted in a loss of fuel pressure and a subsequent loss of engine power during cruise flight and an off-airport landing and collision with obstacles.Aug 3, 2015 · N235HM · Substantial damageNTSB WPR15CA173Accident · No injuriesData collectionFinal reportCessna T188C · Ismay, MTThe pilot's incorrect action to continue the takeoff when he failed to maintain directional control during the takeoff roll.May 31, 2015 · N9987J · Substantial damageNTSB WPR14CA067Accident · Serious injuriesData collectionFinal reportBeech 58P · Kalispell, MTThe pilot's failure to maintain airplane control during the landing sequence.Dec 9, 2013 · N53MT · Substantial damageNTSB WPR11FA170Accident · 1 fatalField investigationFinal reportCessna T310R · Butte, MTThe pilot's loss of airplane control during the missed approach for undetermined reasons. Contributing to the accident was the rapid and unforecast deterioration of the weather conditions to below the landing minimum and the pilot's decision to attempt the…Mar 19, 2011 · N4914A · Substantial damageNTSB WPR10LA476Accident · No injuriesLimited investigationFinal reportCessna 310R · Great Falls, MTThe uncommanded retraction of the right main landing gear during taxi due to the failure of the landing gear extension system to move the right main gear upper side link into the locked position for undetermined reasons.Sep 28, 2010 · N455TB · Substantial damageNTSB WPR09LA281Accident · No injuriesLimited investigationFinal reportCessna T188C · Rock Springs, MTThe pilot's decision to attempt to takeoff in crosswind conditions that exceeded the airplane’s demonstrated crosswind capability.May 31, 2009 · N9955J · Substantial damageNTSB SEA07LA166Accident · No injuriesLimited investigationFinal reportCessna T188C · Rock Springs, MTThe failure of the left main landing gear due to fatigue.Jun 10, 2007 · N2535J · Substantial damageNTSB SEA07LA002Accident · No injuriesLimited investigationFinal reportCessna 340A · Kalispell, MTThe fracture of the adjusting bellcrank in overstress due to binding in a linkage forward of the bell crank.Oct 2, 2006 · N1920E · Substantial damageNTSB SEA05FA092Accident · 2 fatalField investigationFinal reportCessna T210N · Kalispell, MTLoss of aircraft control during climb while in instrument meteorological conditions. Icing conditions was a factor.May 3, 2005 · N106PM · DestroyedNTSB SEA05LA084Accident · Minor injuriesLimited investigationFinal reportCessna T210N · Kalispell, MTAn airborne fire which was fueled by leaking hydraulic fluid (the ignition source for the fire was undetermined) from the landing gear hydraulic system located under the cockpit instrument panel due to inadequate maintenance from other maintenance personnel.…Apr 20, 2005 · N2AK · DestroyedNTSB SEA05LA011Accident · No injuriesLimited investigationFinal reportCessna T210H · Missoula, MTThe pilot's failure to follow published procedures/directives (inducing excessive fuel flow to the engine), and the subsequent loss of engine power for nonmechanical reasons while on final approach. Contributing factors were the utility pole and the ditch.Oct 23, 2004 · N2240R · Substantial damageNTSB SEA04LA029Accident · Minor injuriesLimited investigationFinal reportBeech 58P · Missoula, MTThe second pilot's failure to maintain terrain clearance while maneuvering after takeoff. Proper climb rate not verified by the flight crew, fog, freezing fog, dark night conditions and inadequate supervision by the pilot-in-command were factors.Dec 23, 2003 · N181AM · DestroyedNTSB SEA02LA138Accident · No injuriesLimited investigationFinal reportCessna T188C · Choteau, MTFuel exhaustion as a result of the pilot's inattention to fuel consumption (flight duration) which resulted in a total loss of power and subsequent hard landing.Jul 29, 2002 · N2802J · Substantial damageNTSB SEA01LA052Accident · No injuriesLimited investigationFinal reportCessna 402B · Billings, MTBest rate-of-climb single-engine speed was not maintained. Delayed remedial action was a factor.Feb 20, 2001 · N69316 · Substantial damageNTSB SEA96FA209Accident · 1 fatalField investigationFinal reportCessna 340A · Wise River, MTThe pilot's attempt to fly in adverse meteorological conditions which led a loss of aircraft control. Factors contributing to the accident include: the pilot's failure to obtain the most current information of the meteorological conditions prior to departure,…Sep 5, 1996 · N128RP · DestroyedNTSB SEA94LA152Accident · No injuriesLimited investigationFinal reportCessna T188C · Angela, MTDirectional control was not maintained. Factors to the accident were: wet terrain and inadequate aircraft preflight.Jun 4, 1994 · N2535J · Substantial damageNTSB SEA94LA074Accident · No injuriesLimited investigationFinal reportBeech 58P · Billings, MTThe pilot's inadvertent retraction of the landing gear while on the runway.Mar 6, 1994 · N717HL · Substantial damageNTSB SEA94LA058Accident · No injuriesLimited investigationFinal reportCessna 402C · Billings, MTThe nose gear actuator froze. A factor to the accident was temperature extremes.Feb 7, 1994 · N2718Y · Substantial damageNTSB SEA93LA132Accident · Minor injuriesLimited investigationFinal reportCessna T-188C · Augusta, MTThe pilot's failure to maintain airspeed and terrain clearance while maneuvering on an aerial application flight. A factor relating to the accident was the pilot's diverted attention.Jun 17, 1993 · N9952J · Substantial damageNTSB SEA92FA140Accident · 1 fatalField investigationFinal reportBeech A36TC · Ballantine, MTThe pilot-in-command's physical impairment and his continued VFR flight into instrument meteorological conditions. Factors relating to the accident were: the weather conditions and the hilly terrain.Jun 29, 1992 · N3696R · DestroyedNTSB SEA91LA214Accident · No injuriesLimited investigationFinal reportBeech 58TC · Kalispell, MTThe pilot's failure to extend the landing gear. A factor contributing to the accident was the pilot's failure to identtify a down and locked landing gear condition prior to touchdown.Aug 17, 1991 · N350TH · Substantial damageNTSB DEN89LA172Accident · No injuriesLimited investigationFinal reportCessna T188C · Fort Benton, MTOverload failure of the left main landing gear attaching bolts for an unknown reason.Jul 7, 1989 · N2802J · Substantial damageNTSB DEN86LA234Accident · Minor injuriesLimited investigationFinal reportCessna T210M · Dillon, MTPlt said he called UNICOM for arpt advisory and heard operator say something about six. He thought she said rwy 6 was the preferred rwy (there is no rwy 6 at Dillon arpt). Operator actually said rwy 16 was the preferred rwy. Plt landed past midway point of…Aug 22, 1986 · N6952M · Substantial damageNTSB FTW86MA010Accident · 4 fatalMajor investigationFinal reportBeech V35 · Bridger, MTDrg a preflt wx briefing, the plt was advised that VFR flt was not recommended due to forecast frontal activity moving southbound along his route. Severe turbulence & icing had been reported just to the north of his course. He filed a VFR flt plan & took off…Oct 3, 1985 · N8475H · DestroyedNTSB DEN85LA060Accident · Minor injuriesLimited investigationFinal reportBeech B36TC · Billings, MTPlt used cannula connected to portable oxygen system during climb starting at 11,000 ft MSL. At FL 170 plt switched to a mask connected to acft oxygen ststem. At FL 250, plt complained of stomach pains for aprx 1/2 hr. Plt then stated to his son that his…Jan 5, 1985 · N6750C · Substantial damageNTSB DEN83LA028Accident · No injuriesLimited investigationFinal reportCessna T188C · Santa Rita, MTAircraft nosed over during landing. Aircraft was swerving left after brake application. More braking was used and aircraft nosed over.Dec 1, 1982 · N2066J · Substantial damageNTSB DEN82DA117Accident · No injuriesFinal reportCessna 188 · 25nm Sw Santa R, MTAfter dispensing his second load, the pilot returned to the airport where he circled to wait for traffic to clear the runway. About 1/2 way through the circle, the engine lost power and the pilot observed that the fuel gauges indicated empty. He landed on a…Jun 25, 1982 · N2066J · Substantial damageNTSB DEN81FA068Accident · 1 fatalClosedCessna T210L · Big Timber, MTSep 25, 1981 · N94136 · DestroyedNTSB SEA79DTI25Accident · No injuriesClosedCessna 172 · Conrad, MTSep 13, 1979 · N2015S · Substantial damageNTSB SEA79FA021Accident · 1 fatalClosedCessna T210P · Lavina, MTFeb 28, 1979 · N6995N · DestroyedNTSB SEA79FTI02Accident · Serious injuriesClosedCessna T210L · Great Falls, MTOct 22, 1978 · N30751 · Substantial damageNTSB SEA74FTI28Accident · No injuriesClosedCessna 210 · Deer Lodge, MTJun 21, 1974 · N59027 · Substantial damage