# NTSB investigations: Continental IO-520 series, WI NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 1 of 2 · 54 cases ## Latest cases - [NTSB CEN26LA262](https://openairdocs.org/ntsb/CEN26LA262.md): Beech F33A · Janesville, WI · Accident · No injuries · Class 4 · Limited · Investigation open · Jul 20, 2026 · N933A · Substantial damage - [NTSB CEN25LA344](https://openairdocs.org/ntsb/CEN25LA344.md): Cessna 210 · Markesan, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 21, 2025 · N761SV · Substantial damage > The pilot’s failure to attain a proper touchdown point which resulted in a long landing and subsequent runway overrun. - [NTSB CEN25LA211](https://openairdocs.org/ntsb/CEN25LA211.md): Cessna U206 · Falun, WI · Accident · No injuries · Class 4 · Limited · Final report · Jun 18, 2025 · N932DB · Substantial damage > The 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. - [NTSB CEN23LA133](https://openairdocs.org/ntsb/CEN23LA133.md): Beech F33A · Hilbert, WI · Accident · No injuries · Class 4 · Limited · Final report · Feb 6, 2023 · N1074W · Substantial damage > The pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation. - [NTSB CEN21LA474](https://openairdocs.org/ntsb/CEN21LA474.md): Navion Navion H · Burlington, WI · Accident · No injuries · Class 4 · Limited · Final report · Sep 16, 2021 · N1061Y · Substantial damage > The pilot’s failure to maintain aircraft control during landing with a gusting crosswind that resulted in an aerodynamic stall and a hard impact on the runway. - [NTSB CEN19LA290](https://openairdocs.org/ntsb/CEN19LA290.md): Beech V35 · Monroe, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 27, 2019 · N6245V · Substantial damage > A 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. - [NTSB GAA19CA096](https://openairdocs.org/ntsb/GAA19CA096.md): Beech 36 · Hartford, WI · Accident · No injuries · Data collection · Final report · Dec 12, 2018 · N6650M · Substantial damage > The pilot's exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall and impact with terrain during landing in icing conditions. - [NTSB CEN18LA159](https://openairdocs.org/ntsb/CEN18LA159.md): Beech A36 · Shullsburg, WI · Accident · No injuries · Limited investigation · Final report · May 5, 2018 · N36LP · Substantial damage > A 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. - [NTSB CEN14LA036](https://openairdocs.org/ntsb/CEN14LA036.md): Cessna 182L · Superior, WI · Accident · Minor injuries · Limited investigation · Final report · Nov 2, 2013 · N70520 · 2 aircraft · Destroyed > The failure of the pilot who was flying the trail airplane to maintain separation from the lead airplane. Contributing to the accident was the inadequate pilot training for formation skydiving operations. - [NTSB CEN13LA330](https://openairdocs.org/ntsb/CEN13LA330.md): Cessna TP206B · Sturgeon Bay, WI · Accident · No injuries · Limited investigation · Final report · Jun 1, 2013 · N3350J · Substantial damage > The pilot’s improper reselection of the left fuel tank, which had an obstructed vent system and resulted in a total loss of engine power during the approach for landing. - [NTSB CEN13LA016](https://openairdocs.org/ntsb/CEN13LA016.md): Beech A36 · Wausau, WI · Accident · Serious injuries · Limited investigation · Final report · Oct 17, 2012 · N121VP · Substantial damage > The pilot's decision to attempt an instrument approach in meteorological conditions below approach minimums and his failure to properly execute a missed approach. - [NTSB CEN12LA074](https://openairdocs.org/ntsb/CEN12LA074.md): Beech S35 · Elkhart Lake, WI · Accident · No injuries · Limited investigation · Final report · Nov 15, 2011 · N5858S · Substantial damage > The pilot's improper fuel management, which resulted in a total loss of engine power due to fuel starvation. - [NTSB CEN09CA477](https://openairdocs.org/ntsb/CEN09CA477.md): Cessna A185F · River Falls, WI · Accident · No injuries · Data collection · Final report · Jul 30, 2009 · N989DM · Substantial damage > The pilot not checking the security of the fuel caps prior to flight leading to fuel exhaustion and the subsequent non-mechanical loss of engine power during descent. - [NTSB CEN09LA447](https://openairdocs.org/ntsb/CEN09LA447.md): Cessna A188B · Suring, WI · Accident · No injuries · Limited investigation · Final report · Jul 16, 2009 · N9747G · Substantial damage > A loss of engine power resulting from the fatigue failure of the crankshaft due to the loss of engine case through-bolt torque. Contributing to the engine failure was the operator's failure to overhaul the engine in accordance with the manufacturer's… - [NTSB CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048.md): Beech S35 · Herman, WI · Accident · 2 fatal · Field investigation · Final report · Dec 25, 2004 · N5631K · Substantial damage > The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor associated with the accident was the trees that the airplane… - [NTSB CHI02TA149](https://openairdocs.org/ntsb/CHI02TA149.md): Cessna A185F · Necedah, WI · Accident · No injuries · Final report · Jun 1, 2002 · N185NR · Substantial damage > Directional control of the airplane not maintained by the pilot. The gusting winds was a contributing factor. - [NTSB CHI02LA124](https://openairdocs.org/ntsb/CHI02LA124.md): Cessna 185F · Cumberland, WI · Accident · No injuries · Limited investigation · Final report · Apr 29, 2002 · N8081E · Substantial damage > the failure of the pilot to maintain directional control after encountering high winds and gusty winds during taxi from landing. - [NTSB CHI01LA288](https://openairdocs.org/ntsb/CHI01LA288.md): Cessna 188 · Almond, WI · Accident · No injuries · Limited investigation · Final report · Aug 22, 2001 · N91138 · Substantial damage > the pilot failed to maintain clearance from the corn crop. Additional factors were the inoperative spray pump, the corn crop, and the pilot's diverted attention. - [NTSB CHI01FA218](https://openairdocs.org/ntsb/CHI01FA218.md): Cessna 310R · Oak Creek, WI · Accident · 1 fatal · Field investigation · Final report · Jul 18, 2001 · N1448Z · Destroyed > The pilot not maintaining clearance from objects during an ILS approach in low night IFR conditions and his descent below decision height. Factors were the dark night, mist, low ceiling, and the trees west of the approach. - [NTSB CHI98FA349](https://openairdocs.org/ntsb/CHI98FA349.md): Beech 58 · Oakdale, WI · Accident · 3 fatal · Field investigation · Final report · Sep 16, 1998 · N4574Q · Destroyed > The installation of the door seal inflation system by company personnel. An additional cause was the emergency procedures not followed by the pilot-in-command. A contributing factor was the trees. - [NTSB CHI98FA344](https://openairdocs.org/ntsb/CHI98FA344.md): Cessna A185F · Phillips, WI · Accident · 2 fatal · Field investigation · Final report · Aug 4, 1998 · N888KS · Destroyed > The pilot's failure to maintain adequate altitude/clearance with trees. Contributing factors were fog, rain showers, and the trees. - [NTSB CHI98LA276](https://openairdocs.org/ntsb/CHI98LA276.md): Beech F33A · Delavan, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 25, 1998 · N350NW · Substantial damage > the pilot's failure to maintain aircraft control during the takeoff roll. Factors contributing to this accident were the pilot's inadequate preflight, his operation of an airplane with a known deficiency, low air pressure on both main tires, the snow fence,… - [NTSB CHI96LA118](https://openairdocs.org/ntsb/CHI96LA118.md): Cessna 310R · Marshfield, WI · Accident · No injuries · Limited investigation · Final report · Mar 20, 1996 · N1835E · 2 aircraft · Substantial damage > the failure of the pilot of the PA-32R, N1030Q, to obtain identification of the Cessna 310R, N1835E, visually, and his inadequate visual outlook. A factor was the failure of both pilots to hear communications from each other. - [NTSB CHI93FA200](https://openairdocs.org/ntsb/CHI93FA200.md): Beech A-36 · Tony, WI · Accident · 2 fatal · Field investigation · Final report · Jun 9, 1993 · N236A · Destroyed > the pilot's decision to continue flight into known adverse weather and exceeded the design strees limits of the airplane. Factors associated with the accident were inadequate preflight planning/preparation, clouds, turbulence, icing conditions, and the lack… - [NTSB CHI93LA077](https://openairdocs.org/ntsb/CHI93LA077.md): Cessna 310R · Minocqua, WI · Accident · Minor injuries · Limited investigation · Final report · Jan 26, 1993 · N37224 · Substantial damage > The pilot's failure to properly align the aircraft with the landing area. - [NTSB CHI92FA110](https://openairdocs.org/ntsb/CHI92FA110.md): Cessna 310R · Superior, WI · Accident · 2 fatal · Field investigation · Final report · Mar 11, 1992 · N1328G · Destroyed > Inadequate airspeed, which resulted in an inadvertent stall/spin, and failure of the instructor pilot to take sufficient remedial action to prevent the loss of control. - [NTSB CHI90LA116](https://openairdocs.org/ntsb/CHI90LA116.md): Beech E 55 · New Richmond, WI · Accident · No injuries · Limited investigation · Final report · Apr 22, 1990 · N17577 · Substantial damage > Pilot's improper use of the landing gear mechanism during the landing roll, which resulted in the partial collapse of the landing gear. - [NTSB CHI90LA115](https://openairdocs.org/ntsb/CHI90LA115.md): Beech F33A · Milwaukee, WI · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 1990 · N179DD · Substantial damage > The utilization of improper procedures on the part of the pilot in command by attempting to execute a coupled approach outside the parameters of the autopilot. - [NTSB CHI90LA042](https://openairdocs.org/ntsb/CHI90LA042.md): Beech V35 · Cable, WI · Accident · No injuries · Limited investigation · Final report · Dec 9, 1989 · N7988M · Substantial damage > The pilot's failure to adequately compensate for crosswind conditions. Contributing to the accident was the gusty, crosswind conditions which existed. - [NTSB CHI90LA015](https://openairdocs.org/ntsb/CHI90LA015.md): Cessna 207 · Dodgeville, WI · Accident · No injuries · Limited investigation · Final report · Oct 19, 1989 · N1517U · Substantial damage > Pilot's improper planning/decision and his delay in deciding to go around. Factors related to the accident were: the unfavorable wind conditions, the pilot's visual perception on the crowned runway, his misjudgement of speed and remaining distance on the… - [NTSB CHI89LA075](https://openairdocs.org/ntsb/CHI89LA075.md): Bellanca 17-30A · Watertown, WI · Accident · No injuries · Limited investigation · Final report · Apr 24, 1989 · N39868 · Substantial damage > The pilot's improper use of brakes and throttle. A contributing factor was the parked aircraft which was nearby. - [NTSB CHI88LA125](https://openairdocs.org/ntsb/CHI88LA125.md): Cessna TU206B · Ellsworth, WI · Accident · Minor injuries · Limited investigation · Final report · Jun 5, 1988 · N4757F · Substantial damage > During cruise flight the pilot experienced an engine failure which he believed to be caused by fuel exhaustion, and executed a forced landing in unsuitable terrain. Post accident inspection revealed that the left fuel tank contained 23 gallons of fuel at the… - [NTSB CHI87LA214](https://openairdocs.org/ntsb/CHI87LA214.md): Beech E55 · Green Bay, WI · Accident · No injuries · Limited investigation · Final report · Sep 20, 1987 · N146M · Substantial damage > The plt intended to land long on rwy 36L since he parked the acft near the north end of the field. He stated that he flew over the rwy at an alt of aprx 30 ft until near the intx with rwy 6/24, then he retarded the throttles & adjusted the trim for landing.… - [NTSB CHI87LA014](https://openairdocs.org/ntsb/CHI87LA014.md): Beech V35A · La Pointe, WI · Accident · No injuries · Limited investigation · Final report · Oct 24, 1986 · N8360N · Substantial damage > The acft struck a deer during the landing flare. The plt was able to maintain control of the acft and complete the landing even though the acft sustained substantial damage to the right wing and its associated structure. - [NTSB CHI86LA188](https://openairdocs.org/ntsb/CHI86LA188.md): Bellanca 17-30 · Winneconne, WI · Accident · No injuries · Limited investigation · Final report · Jul 27, 1986 · N4865V · Substantial damage > While landing, the plt failed to maintain directional control. Subsequently, the acft went off the right side of the rwyand entered a skid. The left main gear collapsed, then the nose gear collapsed. - [NTSB CHI86LA084](https://openairdocs.org/ntsb/CHI86LA084.md): Cessna 207 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Feb 10, 1986 · N18SA · Substantial damage > After preheating the eng the plt took off and during climb the cabin filled with smoke and the eng stopped. A forced landing was made on a city street during which the left wing contacted a sign pole. Post accident teardown of the eng disclosed that an oil… - [NTSB CHI85LA307](https://openairdocs.org/ntsb/CHI85LA307.md): Bellanca 17-30 · Sheboygan, WI · Accident · No injuries · Limited investigation · Final report · Jul 21, 1985 · N7315V · Substantial damage > The acft collided with a ditch during a forced landing following a loss of power in cruise flt. The plt reported he switched the fuel selector from the left to the right tank, & after aprx 3 minutes, a total loss of power was experienced. He stated that… - [NTSB CHI85LA304](https://openairdocs.org/ntsb/CHI85LA304.md): Cessna 210H · Burlington, WI · Accident · Serious injuries · Limited investigation · Final report · Jul 21, 1985 · N6139F · Substantial damage > Pilot estimated 15 gals of fuel at preflt. After 15 min grd delay due to traffic pilot tookoff and climbed to 2,500'MSL. After cruising 22 nmi the engine quit due to fuel exhaustion. During attempt to ld in corn field pilot attempted to stretch his glide and… - [NTSB CHI85LA090](https://openairdocs.org/ntsb/CHI85LA090.md): Beech 58 · Hayward, WI · Accident · No injuries · Limited investigation · Final report · Nov 15, 1984 · N1807W · Substantial damage > The acft sustained subst damage after uncontrolled contact with the rwy during landing. Investigation revealed that the landing was inadvertently attempted at a time when the winds shifted to a direct x-wind with gusts to 35 KTS. - [NTSB CHI84LA146](https://openairdocs.org/ntsb/CHI84LA146.md): Bellanca 17-30 · Delavan, WI · Accident · Minor injuries · Limited investigation · Final report · Apr 1, 1984 · N7389V · Substantial damage > The plt reported that when he was descending from 3500 ft MSL to traffic pattern alt (2000 ft MSL), he switched the fuel selector from the left fuel tank to the right tank. Upon entering the traffic pattern, he made his prelanding checks. When he advanced the… - [NTSB CHI82DA253](https://openairdocs.org/ntsb/CHI82DA253.md): Cessna A185F · Lake Delton, WI · Accident · No injuries · Final report · Jul 17, 1982 · N8375Q · Substantial damage > The float equipped aircraft was being operated on its first flight of the day. After takeoff, the pilot noted a deterioration of power as he was climbing through about 400 ft AGL. He was unable to restore the power and could not maintain level flight. During… - [NTSB CHI82DA241](https://openairdocs.org/ntsb/CHI82DA241.md): Cessna 188B · Stevens Point, WI · Accident · Serious injuries · Final report · Jul 8, 1982 · N9284G · Destroyed > The pilot stated that when he was pulling up from a swath run, he noticed a left spray nozzle was leaking. At the same time, he noticed a person on the porch of a house that he was flying over. As he looked to see if the house and person would be avoided, the… - [NTSB CHI81FER54](https://openairdocs.org/ntsb/CHI81FER54.md): Cessna A185E · Superior, WI · Accident · No injuries · Closed · Jul 26, 1981 · N70049 · Substantial damage - [NTSB CHI80FEP08](https://openairdocs.org/ntsb/CHI80FEP08.md): Bellanca 17-30A · Viroqua, WI · Accident · No injuries · Closed · Dec 18, 1979 · N14703 · Substantial damage - [NTSB CHI79DEP12](https://openairdocs.org/ntsb/CHI79DEP12.md): Cessna 210 · Land O'Lakes, WI · Accident · No injuries · Closed · Dec 13, 1978 · N8110G · Substantial damage - [NTSB CHI78FA049](https://openairdocs.org/ntsb/CHI78FA049.md): Bellanca 17-30A · Rhinelander, WI · Accident · 1 fatal · Closed · Jul 12, 1978 · N93627 · Destroyed - [NTSB CHI77FEP45](https://openairdocs.org/ntsb/CHI77FEP45.md): Bellanca 17-30A · Milwaukee, WI · Accident · No injuries · Closed · Jul 18, 1977 · N39867 · Substantial damage - [NTSB CHI77FEP42](https://openairdocs.org/ntsb/CHI77FEP42.md): Cessna 188B · Nekoosa, WI · Accident · No injuries · Closed · Jul 4, 1977 · N4915Q · Substantial damage - [NTSB CHI77FEP28](https://openairdocs.org/ntsb/CHI77FEP28.md): Cessna 210D · Boscobel, WI · Accident · Serious injuries · Closed · Mar 26, 1977 · N3924Y · Substantial damage - [NTSB CHI75FEP64](https://openairdocs.org/ntsb/CHI75FEP64.md): Beech A36 · Wausaw, WI · Accident · Minor injuries · Closed · May 31, 1975 · N9076Q · Destroyed Next page: https://openairdocs.org/ntsb.md?engine=17032&state=WI&page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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" = 'WI' 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 ('17032')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=17032&state=WI --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.