Final NTSB investigations: Continental IO-520 series

124 cases on aircraft whose registry engine model is Continental IO-520 series, where the defining event was Loss of engine power (total). 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

20082026
Final NTSB investigations: Continental IO-520 series per year, 2008–2026: 124 cases
200811
20099
201015
20118
20129
20139
20148
20154
20164
20178
201812
201910
20203
20216
20223
20231
20243
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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17032')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e.\"isDefiningEvent\" AND e.\"tier2Number\" = '341'))
  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 ANC26LA026Accident · Minor injuriesClass 4 · LimitedFinal reportCessna U206F · Juneau, AKA total loss of engine power for reasons that could not be determined because the airplane was not recovered from the ocean.Apr 16, 2026 · N93021 · Substantial damageNTSB WPR24LA314Accident · Minor injuriesClass 3 · LimitedFinal reportCessna U206G · West Sacramento, CAFailure of the No. 4 cylinder fuel injection assembly tube and subsequent total loss of engine power.Sep 19, 2024 · N6522Z · Substantial damageNTSB CEN24LA152Accident · No injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Galveston, TXMaintenance personnel’s failure to properly secure the oil filter adapter when replacing the oil filter adapter gasket which resulted in the filter becoming loose, resulting in the loss of engine oil, and the subsequent total loss of engine power.Apr 5, 2024 · N9996V · Substantial damageNTSB ERA24LA095Accident · No injuriesClass 3 · LimitedFinal reportCessna 210D · Paris, TNThe disruption of torque to the No 4 connecting rod journals, which resulted in a spun bearing and the subsequent total loss of engine power.Jan 22, 2024 · N3857Y · Substantial damageNTSB ERA23LA361Accident · No injuriesClass 3 · LimitedFinal reportBeech V35 · Rutledge, TNA total loss of engine power due to the fatigue failure of a retaining circlip in one of the No. 2 crankshaft cheek counterweights, which resulted in liberation of the counterweight.Sep 2, 2023 · N5431U · Substantial damageNTSB ERA22LA410Accident · No injuriesClass 3 · LimitedFinal reportCessna U206 · Buckland, AKThe installation of incompatible rocker arms and rocker arm bushings during an engine overhaul, which resulted in a complete loss of engine power.Sep 9, 2022 · N8019Z · Substantial damageNTSB WPR22LA314Accident · Minor injuriesClass 3 · LimitedFinal reportBeech F33A · Wilder, IDCatastrophic engine failure during the initial climb due to an incorrectly installed crankshaft counterweight retaining ring.Aug 21, 2022 · N4133S · Substantial damageNTSB CEN22LA140Accident · No injuriesClass 3 · LimitedFinal reportBeech A36 · Heavner, OKA total loss of engine power due to oil exhaustion which resulted from improper engine maintenance.Mar 12, 2022 · N9410Q · Substantial damageNTSB ERA22LA082Accident · Minor injuriesClass 3 · LimitedFinal reportBeech S35 · Tallahassee, FLA total loss of engine power due to a lack of oil lubrication.Dec 7, 2021 · N80YD · Substantial damageNTSB CEN21LA382Accident · No injuriesClass 3 · LimitedFinal reportBeech A36 · Granbury, TXThe loss of engine power for reasons that could not be determined with the available information.Aug 24, 2021 · N67CW · Substantial damageNTSB CEN21LA221Accident · No injuriesClass 3 · LimitedFinal reportBeech A36 · Pinckneyville, ILThe total loss of engine power due to oil starvation. The reason for the oil starvation could not be determined based on available evidence.May 14, 2021 · N1875W · Substantial damageNTSB ERA21LA201Accident · 1 fatalClass 3 · LimitedFinal reportBeech A36 · Lakeland, FLThe total loss of engine power for reasons that could not be determined based on the available evidence.May 1, 2021 · N125WC · DestroyedNTSB ERA21LA188Accident · No injuriesClass 3 · LimitedFinal reportCessna A188 · Dover, NCA total loss of engine power due to a shift of a crankshaft main bearing, which resulted in a lack of lubrication and subsequent overheating and failure of the engine crankshaft. Contributing to the accident was the hard touchdown during the forced landing.Apr 15, 2021 · N731TB · Substantial damageNTSB ERA21LA174Accident · Serious injuriesClass 3 · LimitedFinal reportBeech A36 · Arcadia, FLA total loss of engine power for underdetermined reasons.Apr 6, 2021 · N18394 · Substantial damageNTSB CEN21LA073Accident · No injuriesClass 3 · LimitedFinal reportBellanca 17-30A · Arden Hills, MNIncorrect connecting rod installation, which resulted in the failure of the nos. 5 and 6 connecting rods and subsequent total loss of engine power.Dec 3, 2020 · N28067 · Substantial damageNTSB CEN20LA338Accident · Minor injuriesClass 3 · LimitedFinal reportCessna A185F · Sugar Land, TXA total loss of engine power after takeoff for undetermined reasons, and the pilot’s subsequent exceedance of the airplane’s critical angle of attack during landing, which resulted in an aerodynamic stall.Aug 15, 2020 · N5418E · Substantial damageNTSB CEN20LA288Accident · No injuriesClass 3 · LimitedFinal reportBeech 36 · Independence, MOFailure of the No. 5 piston head and ring, which resulted in a total loss of engine power and the pilot’s decision to takeoff with a known mechanical issue.Jul 16, 2020 · N630JL · Substantial damageNTSB WPR20LA033Accident · No injuriesClass 3 · LimitedFinal reportBeech 35 · Caldwell, IDThe total loss of engine power due to the separation of the wastegate exhaust elbow.Nov 23, 2019 · N7956M · Substantial damageNTSB CEN19LA290Accident · Serious injuriesClass 3 · LimitedFinal reportBeech V35 · Monroe, WIA total loss of engine power due to the failure of the Nos. 5 and 6 connecting rods from a lack of oil lubrication for reasons that could not be determined.Aug 27, 2019 · N6245V · Substantial damageNTSB ERA19LA258Accident · No injuriesClass 3 · LimitedFinal reportBeech F33 · Hobe Sound, FLA bearing shift, which resulted in a loss of lubrication to the crankshaft, the failure of the crankshaft, and a total loss of engine power.Aug 23, 2019 · N80WH · Substantial damageNTSB WPR19LA238Accident · No injuriesClass 3 · LimitedFinal reportBeech 36 · Half Moon Bay, CAA total loss of engine power for reasons that could not be determined.Aug 21, 2019 · N134P · DestroyedNTSB CEN19FA279Accident · 2 fatalClass 3 · FieldFinal reportAero Commander 200 · Howell, MIThe improper installation of the engine’s metal intake screen, which allowed the filter element to become displaced and subsequently lodge in the intake, blocking intake air and causing the total loss of engine power, at low altitude and low airspeed…Aug 20, 2019 · N200HS · Substantial damageNTSB WPR19LA217Accident · No injuriesClass 3 · LimitedFinal reportCessna 206 · Prospect, ORThe failure of the counterweight retainer pin plate which resulted in a total loss of engine power.Aug 10, 2019 · N5152U · Substantial damageNTSB WPR19LA190Accident · No injuriesClass 3 · LimitedFinal reportCessna P206 · Cascade, IDA loss of engine power due to the pilot’s improper leaning of the engine.Jul 14, 2019 · N131DV · Substantial damageNTSB CEN19FA210Accident · 1 fatalClass 2 · FieldFinal reportBeech A36 · Chebanse, ILA total loss of engine power due to fuel starvation.Jul 5, 2019 · N1809S · Substantial damageNTSB WPR19LA166Accident · No injuriesClass 3 · LimitedFinal reportCessna 210 · Romona, CAA total loss of engine power due to oil starvation as a result of the failure of an oil filter adapter fiber gasket.Jun 10, 2019 · N3997Y · Substantial damageNTSB CEN19FA165Accident · 2 fatalField investigationFinal reportBeech V35 · Frankfort, MIA loss of engine power for reasons that could not be determined based on the available information.May 13, 2019 · N1561Z · Substantial damageNTSB WPR19LA016Accident · Minor injuriesClass 3 · LimitedFinal reportCessna T210 · FiIlmore, CAA total loss of engine power as a result of the pilot’s failure to remove a towel from the engine’s air induction following maintenance.Oct 27, 2018 · N6834R · Substantial damageNTSB ANC19CA003Accident · No injuriesData collectionFinal reportCessna 207 · Anchorage, AKThe pilot's inadequate in-flight fuel management, which resulted in fuel starvation and the subsequent loss of engine power, and her subsequent failure to maintain clearance from trees during the approach to land at a nearby airstrip.Oct 11, 2018 · N6492H · Substantial damageNTSB WPR18FA266Accident · 1 fatalClass 2 · FieldFinal reportBeech 33 · Cottonwood, AZThe pilot's mismanagement of the available fuel, which resulted in a total loss of engine power due to fuel starvation.Sep 17, 2018 · N2031D · Substantial damageNTSB ANC18LA064Accident · No injuriesClass 3 · LimitedFinal reportCessna 207 · Iliamna, AKA total loss of engine power due to detonation/preignition damage of the No. 2 cylinder and piston for reasons that could not be determined.Aug 7, 2018 · N7379U · Substantial damageNTSB CEN18LA321Accident · Minor injuriesLimited investigationFinal reportCessna A188 · Sedalia, MOA total loss of engine power during low-altitude maneuvering for reasons that could not be determined due to postimpact fire damage.Aug 6, 2018 · N4996R · DestroyedNTSB CEN18LA302Accident · No injuriesLimited investigationFinal reportBeech A36 · Brainerd, MNTotal loss of engine power due to a fuel supply interruption from the left tank for reasons that could not be determined, which resulted in the subsequent forced landing into trees.Jul 30, 2018 · N1856W · Substantial damageNTSB CEN18LA276Accident · No injuriesLimited investigationFinal reportBeech V35 · Katy, TXMaintenance personnel’s failure to remove a paper towel from the engine during recent maintenance, which resulted in oil starvation, the failure of a connecting rod, and a catastrophic engine failure and subsequent total loss of engine power.Jul 17, 2018 · N228Q · Substantial damageNTSB CEN18IA273Incident · No injuriesIncident investigationFinal reportCessna A188B · Rockford, OHThe total loss of engine power, which resulted from the separation of the No. 2 connecting rod due to oil starvation as a result of insufficient clamping force of the engine's through-bolts.Jul 12, 2018 · N2483J · Minor damageNTSB CEN18LA229Accident · Serious injuriesLimited investigationFinal reportCessna T210F · Desdemona, TXThe total loss of engine power due to the fuel pump’s fuel flow setting being set too high, which resulted in an excessive fuel flow to the engine.Jun 17, 2018 · N6107R · Substantial damageNTSB CEN18LA213Accident · Serious injuriesLimited investigationFinal reportBeech F33A · Uvalde, TXThe loose oil filter, which resulted in oil starvation and a total loss of engine power in flight.Jun 7, 2018 · N3291X · DestroyedNTSB WPR18LA156Accident · Minor injuriesLimited investigationFinal reportBeech A36 · Tonopah, NVThe pilot's failure to properly lean the fuel/air mixture and to monitor critical engine parameters during the en route climb to cruise level, which resulted in excessive engine heat and oil starvation and the subsequent catastrophic engine failure.May 30, 2018 · N191HL · Substantial damageNTSB CEN18LA159Accident · No injuriesLimited investigationFinal reportBeech A36 · Shullsburg, WIA catastrophic engine failure due to improper torque on the engine through-bolt nuts, which resulted in relative movement between the crankcase halves, damage to a main journal bearing, and a loss of oil lubrication.May 5, 2018 · N36LP · Substantial damageNTSB CEN18LA010Accident · No injuriesLimited investigationFinal reportBellanca 17-30A · Sweetwater, TXThe loss of engine power during a precautionary approach for landing for reasons that could not be determined based on the available information.Oct 6, 2017 · N8234R · Substantial damageNTSB CEN17LA357Accident · Minor injuriesLimited investigationFinal reportBeech A36 · McAlester, OKA total loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any evidence of mechanical malfunctions or failures that would have precluded normal operation.Sep 15, 2017 · N18403 · Substantial damageNTSB CEN17LA352Accident · No injuriesLimited investigationFinal reportCessna 210G · Hallsville, MOThe total loss of engine power due to a fatigue failure of the engine mixture control cable.Sep 13, 2017 · N5906F · Substantial damageNTSB ERA17LA307Accident · Minor injuriesClass 3 · LimitedFinal reportCessna U206 · Harpswell, MEA total loss of engine power due to maintenance personnel's failure to apply proper torque to the cylinder flange nuts and through bolts, which resulted in shifting of the Nos. 1, 2, and 3 main bearings, loss of lubrication, and failure of the crankshaft.Sep 1, 2017 · N4615X · Substantial damageNTSB ANC17LA037Accident · No injuriesClass 3 · LimitedFinal reportCessna A185 · Wasilla, AKThe pilot’s failure to manage fuel quantity in flight, which resulted in a total loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s failure to follow manufacturer guidance for restoring engine power after emptying a fuel…Jul 16, 2017 · N401WC · Substantial damageNTSB CEN17LA286Accident · Minor injuriesLimited investigationFinal reportBeech V35 · Walters, OKMaintenance personnel’s installation of an improper vacuum pump gasket, which resulted in oil starvation to the engine and a subsequent total loss of engine power.Jul 8, 2017 · N6257V · Substantial damageNTSB WPR17LA070Accident · Minor injuriesClass 3 · LimitedFinal reportBeech F33A · Pomona, CAThe total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation.Feb 16, 2017 · N222EN · Substantial damageNTSB CEN17LA081Accident · No injuriesLimited investigationFinal reportBellanca 17 30 · Kidron, OHMaintenance personnel’s failure to properly secure the vacuum pump, which resulted in a loss of engine oil and the subsequent total loss of engine power due to oil starvation.Jan 21, 2017 · N39819 · Substantial damageNTSB CEN17LA058Accident · No injuriesLimited investigationFinal reportBellanca 17 30A · Blaine, MNA total loss of engine power due to a lack of crankshaft lubrication to the No. 4 connecting rod journal.Dec 18, 2016 · N4204B · Substantial damageNTSB ERA16CA203Accident · No injuriesData collectionFinal reportBeech F33A · Fairfield, NJThe pilot's failure to adequately manage the available fuel supply, resulting in fuel starvation and a total loss of engine power.Jun 5, 2016 · N444VT · Substantial damageNTSB ERA16LA158Accident · No injuriesLimited investigationFinal reportCessna U206 · Atlantic Ocean (Atlantic Ocean)A total loss of engine power for reason(s) that could not be determined because the airplane was not recovered.Apr 15, 2016 · N1346Q · Substantial damage