Final NTSB investigations: Continental IO-520 series

4,669 cases on aircraft whose registry engine model is Continental IO-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

19642026
Final NTSB investigations: Continental IO-520 series per year, 1964–2026: 4,669 cases
19647
196538
196665
1967101
196881
196968
197075
197174
197287
197388
1974117
1975120
1976140
1977149
1978168
1979149
1980162
1981140
1982118
1983106
1984101
198577
198672
198773
198879
198970
199058
199163
199286
199369
199456
199580
199672
199773
199871
199968
200061
200174
200274
200372
200470
200591
200662
200770
200861
200954
201048
201170
201255
201359
201443
201550
201646
201756
201857
201945
202039
202141
202233
202341
202442
202521
202613

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'))
  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 ERA26LA293Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Carlisle, PAA collision with a deer during landing.Aug 5, 2026 · N29DA · Substantial damageNTSB ERA26LA289Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Weston, CTThe in-flight opening of the engine cowling, which resulted in engine baffling separating from the airplane and impacting the right elevator.Jul 30, 2026 · N9144Q · Substantial damageNTSB CEN26LA274Accident · No injuriesClass 4 · LimitedFinal reportCessna A188B · Algona, IAThe pilot’s failure to maintain control during a turn, which resulted in an aerodynamic stall.Jul 29, 2026 · N731CQ · Substantial damageNTSB WPR26LA240Accident · Serious injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Santa Paula, CAThe pilot’s improper fuel management, which resulted in fuel starvation and a loss of engine power.Jun 27, 2026 · N501CR · Substantial damageNTSB WPR26LA171Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Redding, CAThe pilot’s failure to extend the landing gear before landing due to distraction and his failure to conduct the before landing checklist.Apr 25, 2026 · N6130F · Substantial damageNTSB ERA26LA191Accident · No injuriesClass 4 · LimitedFinal reportBeech F33A · Sanford, NCA loss of electrical power as a result of broken stator leads within the alternator, which resulted in the pilot’s inability to extend the airplane’s landing gear.Apr 24, 2026 · N85WM · Substantial damageNTSB 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 ERA26LA173Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Stevensville, MDThe pilot’s inadvertent retraction of the landing gear lever during the landing roll, which resulted in a gear collapse and runway excursion.Apr 11, 2026 · N38020 · Substantial damageNTSB CEN26LA158Accident · No injuriesClass 4 · LimitedFinal reportCessna A185 · Luverne, MNThe pilot’s failure to maintain directional control during a gusting crosswind landing, and the flight instructor’s delayed remedial action.Apr 3, 2026 · N430RP · Substantial damageNTSB ANC26LA022Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Skwentna, AKThe pilot’s loss of directional control during landing roll due to contact with wind hardened snow berm and subsequent failure of main landing gear.Mar 28, 2026 · N94237 · Substantial damageNTSB ERA26LA154Accident · Minor injuriesClass 4 · LimitedFinal reportBeech V35 · Saluda, SCThe pilot’s failure to maintain control of the airplane during an aborted landing, which resulted in a runway excursion, collision with a fence, and a hard landing .Mar 21, 2026 · N15VM · Substantial damageNTSB ERA26LA117Accident · No injuriesClass 4 · LimitedFinal reportBeech V35 · Gulf Shores, ALThe pilot’s failure to establish a positive rate of climb before retracting the landing gear, which resulted in abnormal runway contact during the takeoff roll.Feb 17, 2026 · N35KA · Substantial damageNTSB CEN26LA091Accident · Minor injuriesClass 4 · LimitedFinal reportBellanca 17-30A · Burnet, TXThe pilot’s improper judgement to relinquish his pilot responsibilities to the passenger with the engine operating, which resulted in a loss of airplane control and impact with a parked vehicle.Jan 15, 2026 · N8213R · Substantial damageNTSB ERA26LA065Accident · Minor injuriesClass 4 · LimitedFinal reportBeech 95-C55 · Cocoa, FLThe flight crew’s failure to adequately manage the available fuel onboard the airplane, which resulted in a total loss of power due to fuel starvation.Dec 8, 2025 · N95KC · Substantial damageNTSB CEN26LA028Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Hondo, TXThe pilot’s failure to extend the landing gear before landing due to distraction and his failure to conduct the Before Landing checklist.Oct 22, 2025 · N17826 · Substantial damageNTSB WPR26LA016Accident · No injuriesClass 4 · LimitedFinal reportBeech S35 · Olympia, WAThe pilot’s inadvertent retraction of the landing gear after landing.Oct 12, 2025 · N35S · Substantial damageNTSB WPR25LA263Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Lakeview, ORThe pilot’s failure to maintain directional control during the landing roll, in gusting crosswind conditions.Aug 23, 2025 · N185GG · Substantial damageNTSB CEN25LA344Accident · No injuriesClass 4 · LimitedFinal reportCessna 210 · Markesan, WIThe pilot’s failure to attain a proper touchdown point which resulted in a long landing and subsequent runway overrun.Aug 21, 2025 · N761SV · Substantial damageNTSB ANC25LA096Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Haines, AKThe pilot’s selection of an unsuitable landing area resulting in an on-ground collision with an obscured log and a main landing gear separation.Aug 18, 2025 · N9BB · Substantial damageNTSB CEN25LA319Accident · No injuriesClass 4 · LimitedFinal reportBeech S35 · Lowell, MIThe pilot’s failure to extend the landing gear before landing.Aug 9, 2025 · N861T · Substantial damageNTSB WPR25LA238Accident · No injuriesClass 4 · LimitedFinal reportCessna A185E · Warren, IDThe pilot’s failure to adequately compensate for a wind gust during the departure roll, which resulted in a loss of directional control and a runway excursion.Aug 2, 2025 · N2252T · Substantial damageNTSB CEN25LA301Accident · No injuriesClass 4 · LimitedFinal reportCessna U206G · Kerrville, TXThe pilot’s failure to confirm the fuel quantity before flight which resulted in a loss of engine power due to fuel starvation.Jul 25, 2025 · N756XY · Substantial damageNTSB ANC25LA078Accident · No injuriesClass 4 · LimitedFinal reportCessna U206C · Gulkana, AKThe pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.Jul 25, 2025 · N29110 · Substantial damageNTSB CEN25LA260Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Lansing, MIThe pilot’s improper landing flare and subsequent failure to maintain directional control during the landing in a crosswind condition.Jul 19, 2025 · N888DK · Substantial damageNTSB ANC25LA069Accident · No injuriesClass 4 · LimitedFinal reportCessna P206C · Port Graham, AKThe pilot's improper landing flare and failure to maintain pitch control, which resulted in a tail strike. Contributing to the accident was the pilot’s failure to initiate a go around after the abnormal runway contact.Jun 23, 2025 · N8630Z · Substantial damageNTSB CEN25LA211Accident · No injuriesClass 4 · LimitedFinal reportCessna U206 · Falun, WIThe pilot experiencing the featureless terrain illusion during the approach which gave the perception that the airplane was at a higher altitude over the glassy water surface than it was, resulting in the airplane impacting the water.Jun 18, 2025 · N932DB · Substantial damageNTSB ERA25LA226Accident · Serious injuriesClass 3 · LimitedFinal reportBeech A36 · Murfreesboro, TNThe pilot’s mismanagement of available fuel, which resulted in fuel starvation and a subsequent loss of total engine power.Jun 10, 2025 · N15PM · Substantial damageNTSB CEN25LA185Accident · No injuriesClass 4 · LimitedFinal reportCessna 401 · Arlington, TXThe failure of the left landing gear system and subsequent intentional gear up landing.May 22, 2025 · N3239Q · Substantial damageNTSB ANC25LA057Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Trapper Creek, AKThe pilot’s improper flare while landing on glassy water, which resulted in a hard landing.May 21, 2025 · N3308S · Substantial damageNTSB ERA25LA186Accident · Serious injuriesClass 4 · LimitedFinal reportBeech 95-C55 · Lakin, WVThe pilot’s inadequate preflight inspection, and inadequate inflight fuel management, which resulted in a total loss of engine power due to fuel starvation and subsequent forced landing.Apr 23, 2025 · N591R · Substantial damageNTSB WPR25LA113Accident · Minor injuriesClass 4 · LimitedFinal reportBeech E-55 · Van Nuys, CAAn in-flight collision with a bird during an approach to land.Mar 16, 2025 · N994WY · Substantial damageNTSB CEN25LA131Accident · No injuriesClass 4 · LimitedFinal reportCessna P206 · Frankston, TXThe pilot’s failure to maintain directional control during the landing with a gusting crosswind.Mar 16, 2025 · N4672F · Substantial damageNTSB ANC25LA030Accident · No injuriesClass 3 · LimitedFinal reportCessna A185F · Skwentna, AKMaintenance personnel’s reuse of worn hardware during the installation of the landing gear assembly and the hardware’s failure and subsequent separation of the gear leg from the landing gear box assembly during taxi.Mar 7, 2025 · N1718R · Substantial damageNTSB ERA25LA128Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Alton Bay, NHThe pilot’s failure to maintain an appropriate glide path during the landing approach, which resulted in in the airplane contacting a snowbank short of the runway.Feb 23, 2025 · N321TB · Substantial damageNTSB ERA25LA094Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Florence, SCThe pilot’s failure to follow the emergency procedures and extend the landing gear manually after the landing gear did not initially extend normally.Dec 27, 2024 · N458K · Substantial damageNTSB WPR25LA047Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Lewistown, MTThe pilot’s inadvertent impact with a rock during a landing on a grass strip.Nov 23, 2024 · N9533H · Substantial damageNTSB ANC25LA003Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Wasilla, AKThe pilot’s failure to maintain directional control during the landing roll, resulting in a ground loop.Oct 20, 2024 · N61795 · Substantial damageNTSB CEN25LA017Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Shreveport, LAThe pilot’s inadvertent failure to lower the landing gear before touching down.Oct 16, 2024 · N4203A · Substantial damageNTSB ANC25LA004Accident · No injuriesClass 4 · LimitedFinal reportCessna U206B · Skwentna, AKThe pilot’s delayed go-around decision, which resulted in inadvertent contact with the landing surface, loss of directional control, and a nose over in gusting wind conditions.Oct 4, 2024 · N3495L · Substantial damageNTSB ANC24FA102Accident · 1 fatalClass 3 · FieldFinal reportCessna 206 · Chalkyitsik, AKA loss of engine power due to water-contaminated fuel as a result of the pilot’s inadequate preflight inspection. Contributing to the accident was the operator’s failure to ensure replacement filters were available for use during refueling operations.Sep 24, 2024 · N8255Q · Substantial damageNTSB WPR24LA317Accident · No injuriesClass 4 · LimitedFinal reportYakovlev YAK-50 · Watsonville, CAThe Yak-50 pilot’s failure to maintain clearance from another airplane while taxiing and maneuvering. Contributing to the accident was the pilot’s inattention due to a distraction inside the cockpit.Sep 20, 2024 · N613BM · 2 aircraft · 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 ERA24LA376Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Raleigh, NCDamage to the landing gear selector switch wire bundle which resulted in an inadvertent retraction of the landing gear during the takeoff roll.Sep 8, 2024 · N6037M · Substantial damageNTSB WPR24FA285Accident · 1 fatalClass 3 · FieldFinal reportCessna A185F · Kent, WAThe pilot’s failure to properly configure the amphibious landing gear for a water landing, which resulted in a touchdown on the water with the wheels extended, noseover, and airplane submersion.Aug 24, 2024 · N61323 · Substantial damageNTSB CEN24LA321Accident · No injuriesClass 4 · LimitedFinal reportCessna A185 · Loveland, COThe pilot’s failure to maintain directional control during the landing, that resulted in a ground loop and a runway excursion. Contributing to the accident was the flight instructor’s delayed remedial action.Aug 20, 2024 · N4490R · Substantial damageNTSB CEN24LA316Accident · No injuriesClass 3 · LimitedFinal reportCessna A185E · Eveleth, MNWater contamination of the fuel system which resulted in a total loss of engine power. Contributing was the pilot’s inadequate preflight.Aug 14, 2024 · N2248T · Substantial damageNTSB ANC24LA075Accident · No injuriesClass 4 · LimitedFinal reportCessna A185F · Fairbanks, AKThe pilot's failure to maintain directional control while landing at a short remote airstrip.Aug 8, 2024 · N94260 · Substantial damageNTSB CEN24LA310Accident · No injuriesClass 4 · LimitedFinal reportBeech E-55 · Crystal, MNThe pilot’s improper landing flare which resulted in a hard landing.Aug 6, 2024 · N744T · Substantial damageNTSB CEN24LA307Accident · No injuriesClass 4 · LimitedFinal reportBeech 58 · Kalamazoo, MIThe pilot’s failure to extend the landing gear before landing.Aug 6, 2024 · N484WW · Substantial damageNTSB ERA24LA344Accident · No injuriesClass 4 · LimitedFinal reportBeech A36 · Cullman, ALThe pilot’s decision to depart in an area of developing convective weather, which resulted in an unanticipated wind shift during the initial climb after takeoff, a loss of climb performance, and the subsequent forced landing.Aug 2, 2024 · N718FG · Substantial damage