# NTSB investigations: Lycoming 0-235 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 3 · 101 cases ## Latest cases - [NTSB CEN26LA208](https://openairdocs.org/ntsb/CEN26LA208.md): American AA-1A · Amery, WI · Accident · Minor injuries · Class 3 · Limited · Preliminary report · May 30, 2026 · N6416L · Substantial damage > On May 30, 2026, about 1113 central daylight time, a Grumman AA-1A airplane, N6416L, was substantially damaged when it was involved in an accident near Amery, Wisconsin. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of… - [NTSB CEN22LA220](https://openairdocs.org/ntsb/CEN22LA220.md): Grumman American Avn. AA-1B · River Falls, WI · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 1, 2022 · N6298L · Substantial damage > The student pilot’s and flight instructor’s inadequate preflight fuel planning, which resulted in a total loss of engine power due to fuel exhaustion. - [NTSB CEN22FA214](https://openairdocs.org/ntsb/CEN22FA214.md): Cessna 152 · Wauwatosa, WI · Accident · 1 fatal · Class 3 · Field · Final report · May 26, 2022 · N4978B · Substantial damage > The student pilot’s exceedance of the airplane’s critical angle of attack, which resulted in a stall from which the student pilot could not recover. - [NTSB CEN20CA194](https://openairdocs.org/ntsb/CEN20CA194.md): Cessna 140 · Appleton, WI · Accident · No injuries · Class 4 · Data collection · Final report · May 26, 2020 · N90023 · Substantial damage > The pilot's loss of control while landing a tailwheel airplane. - [NTSB CEN13CA528](https://openairdocs.org/ntsb/CEN13CA528.md): Bellanca 7ECA · Delavan, WI · Accident · Minor injuries · Data collection · Final report · Sep 6, 2013 · N86586 · Substantial damage > The collision with a hawk during the takeoff roll, which resulted in a loss of directional control, runway excursion, and subsequent noseover. - [NTSB CEN13FA060](https://openairdocs.org/ntsb/CEN13FA060.md): Grumman American Avn. AA-1B · Burlington, WI · Accident · 2 fatal · Field investigation · Final report · Nov 18, 2012 · N6273L · Substantial damage > The pilot’s failure to maintain control of the airplane while maneuvering at a low altitude, which resulted in an inadvertent stall and spin. - [NTSB CEN11LA177](https://openairdocs.org/ntsb/CEN11LA177.md): Piper PA-16 · Lake Koshkonong, WI · Accident · Minor injuries · Limited investigation · Final report · Feb 5, 2011 · N5945H · Substantial damage > A loss of engine power for undetermined reasons during a low-altitude pass over a frozen lake. - [NTSB CEN10CA451](https://openairdocs.org/ntsb/CEN10CA451.md): Piper PA-12 · Wild Rose, WI · Accident · No injuries · Data collection · Final report · Aug 2, 2010 · N775PA · Substantial damage > The pilot's loss of directional control during the takeoff roll. - [NTSB CEN09CA279](https://openairdocs.org/ntsb/CEN09CA279.md): American AA-1 · Cumberland, WI · Accident · Minor injuries · Data collection · Final report · May 3, 2009 · N5905L · Substantial damage > The pilot's failure to maintain control of the aircraft during takeoff in crosswind conditions. - [NTSB CHI08CA226](https://openairdocs.org/ntsb/CHI08CA226.md): American AA-1A · Grantsburg, WI · Accident · Minor injuries · Data collection · Final report · Jul 22, 2008 · N9483L · Substantial damage > A loss of engine power for an undetermined reason. - [NTSB CHI08CA076](https://openairdocs.org/ntsb/CHI08CA076.md): American AA-1A · Grantsburg, WI · Accident · No injuries · Data collection · Final report · Feb 6, 2008 · N9483L · Substantial damage > The seizure of the left brake due to a buildup of ice between the rotor and brake pad. Contributing to the accident was the snow and slush covered runway, and the snowbank. - [NTSB CHI06CA259](https://openairdocs.org/ntsb/CHI06CA259.md): Luscombe 8E · Dodgeville, WI · Accident · No injuries · Data collection · Final report · Sep 10, 2006 · N2020B · Substantial damage > The pilot encountering unsuitable terrain during the precautionary landing. A factor was the ditch the pilot encountered. - [NTSB CHI06CA052](https://openairdocs.org/ntsb/CHI06CA052.md): Cessna 152 · Pelican Lake, WI · Accident · No injuries · Data collection · Final report · Dec 26, 2005 · N6085M · Substantial damage > The pilot selecting an unsuitable landing area. Factors were the snow and ice covered lake. - [NTSB CHI05CA240](https://openairdocs.org/ntsb/CHI05CA240.md): Piper PA-12 · Boscobel, WI · Accident · No injuries · Data collection · Final report · Aug 20, 2005 · N425AH · Substantial damage > The separation of the right main landing gear attachment bracket bolt during the landing and the pilot's aircraft control not possible with the collapsed gear. - [NTSB CHI05LA067](https://openairdocs.org/ntsb/CHI05LA067.md): Cessna 152 · Sturtevant, WI · Accident · No injuries · Limited investigation · Final report · Feb 3, 2005 · N68714 · Substantial damage > The pilot's failure to identify the electrical system failure and to maintain adequate airspeed during the landing approach. Factors associated with the accident were the electrical system failure, the snow covered terrain, and the pilot's lack of experience. - [NTSB CHI04CA118](https://openairdocs.org/ntsb/CHI04CA118.md): Piper PA-12 · Hartford, WI · Accident · No injuries · Data collection · Final report · May 9, 2004 · N2368M · Substantial damage > The loss of engine power for undetermined reasons. A factor to the accident was the soft terrain encountered during the forced landing. - [NTSB CHI01LA054](https://openairdocs.org/ntsb/CHI01LA054.md): Cessna 152 · Sturtevant, WI · Accident · No injuries · Limited investigation · Final report · Dec 27, 2000 · N757DX · Substantial damage > The unsuitable terrain for landing selected by the student pilot, the inadequate initial training by the flight instructor, and the flight instructor's decision to send the student pilot on a solo flight in known adverse weather conditions. Factors to the… - [NTSB CHI01LA020](https://openairdocs.org/ntsb/CHI01LA020.md): Champion 7ECA · Pulaski, WI · Accident · No injuries · Limited investigation · Final report · Oct 21, 2000 · N7586F · Substantial damage > the evasive maneuver initiated by the pilot. Factors were the presence of the skydiver on the runway, and the pilot's selection of a closed runway. - [NTSB CHI00LA313](https://openairdocs.org/ntsb/CHI00LA313.md): Cessna 152 · Cumberland, WI · Accident · No injuries · Limited investigation · Final report · Aug 18, 2000 · N5354M · Substantial damage > the go-around not performed and the inadequate flare by the pilot. - [NTSB CHI00LA034](https://openairdocs.org/ntsb/CHI00LA034.md): Taylorcraft F-21 · Houlton, WI · Accident · No injuries · Limited investigation · Final report · Dec 1, 1999 · N2005J · Substantial damage > the mechanic failed to torque the rod cap bolt during the major engine overhaul. Factors relating to the accident included the rough field and the collapsed landing gear. - [NTSB CHI99FA129](https://openairdocs.org/ntsb/CHI99FA129.md): Cessna 152 · Superior, WI · Accident · 2 fatal · Field investigation · Final report · Apr 14, 1999 · N4611B · Destroyed > the Certified Flight Instructor failed to maintain control of the airplane. - [NTSB CHI99LA060](https://openairdocs.org/ntsb/CHI99LA060.md): Cessna 152 · Appleton, WI · Accident · No injuries · Limited investigation · Final report · Dec 26, 1998 · N6136Q · Substantial damage > The pilot's failure to maintain directional control. A related factor was the crosswind. - [NTSB CHI98LA030](https://openairdocs.org/ntsb/CHI98LA030.md): Piper PA-38 · Madison, WI · Accident · No injuries · Limited investigation · Final report · Nov 5, 1997 · N2536N · Substantial damage > the flight instructor's (CFI's) inadequate supervision of the flight, and his failure to ensure that control of the airplane was maintained. Factors associated with the accident were: the CFI's improper use of flaps, and subsequent contact with the runway… - [NTSB CHI95LA315](https://openairdocs.org/ntsb/CHI95LA315.md): Piper PA-38 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Sep 9, 1995 · N2596N · Substantial damage > the pilot's premature liftoff which resulted in a stall. - [NTSB CHI95LA238](https://openairdocs.org/ntsb/CHI95LA238.md): Grumman AA-1B · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 25, 1995 · N8976L · Substantial damage > the pilot's failure to maintain clearance. - [NTSB CHI95LA099](https://openairdocs.org/ntsb/CHI95LA099.md): Cessna 152 · Waukesha, WI · Accident · No injuries · Limited investigation · Final report · Mar 9, 1995 · N4598B · Substantial damage > the student pilot's failure to maintain directional control during an aborted takeoff. A factor was the snow covered ground which contributed to the airplane nosing over as it departed the runway. - [NTSB CHI94LA037](https://openairdocs.org/ntsb/CHI94LA037.md): Grumman American AA-1B · Arcadia, WI · Accident · Serious injuries · Limited investigation · Final report · Nov 14, 1993 · N9896L · Substantial damage > the loss of engine power for an undetermined reason(s). - [NTSB CHI93LA223](https://openairdocs.org/ntsb/CHI93LA223.md): Bellanca 7ECA · Osceola, WI · Accident · No injuries · Limited investigation · Final report · Jun 27, 1993 · N11854 · Substantial damage > The pilot in command's failure to maintain directional control. - [NTSB CHI92LA134](https://openairdocs.org/ntsb/CHI92LA134.md): Bellanca 7ECA · La Crosse, WI · Accident · Minor injuries · Limited investigation · Final report · Apr 27, 1992 · N53988 · Substantial damage > Visual lookout inadequate and diverted attention by the pilot. A factor related to the accident was transmission wires crossing flight path. - [NTSB CHI91LA125](https://openairdocs.org/ntsb/CHI91LA125.md): Cessna 152 · Oskosh, WI · Accident · No injuries · Limited investigation · Final report · Apr 7, 1991 · N24399 · Substantial damage > Refueling not performed resulting in loss of engine power due to fuel exhaustion. Factors related to the accident were misjudged fuel consumption calculations and non suitable terrain. - [NTSB CHI91LA096](https://openairdocs.org/ntsb/CHI91LA096.md): Cessna 152 · Osseo, WI · Accident · No injuries · Limited investigation · Final report · Feb 10, 1991 · N49288 · Substantial damage > Fuel exhaustion which occurred when the pilot became lost/disoriented. Factors related to the accident were: the pilot's lack of total experience, the terrain condition, and a fence. - [NTSB CHI91LA072](https://openairdocs.org/ntsb/CHI91LA072.md): Piper J3C-65 · Springbrook, WI · Accident · No injuries · Limited investigation · Final report · Jan 13, 1991 · N87867 · Substantial damage > The pilot's attempt to takeoff with a strong gusty tailwind. - [NTSB CHI90LA266](https://openairdocs.org/ntsb/CHI90LA266.md): Cessna 152 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Sep 15, 1990 · N67758 · Substantial damage > Fuel exhaustion. Contributing factor was the unsuitable terrain. - [NTSB CHI90LA033](https://openairdocs.org/ntsb/CHI90LA033.md): Cessna 152 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Nov 26, 1989 · N5115Q · Substantial damage > Failure of the student pilot to maintain directional control of the aircraft, which resulted in an inadvertent ground swerve. Factors related to the accident were: the crosswind, the student's lack of total experience, his diversion of too much attention to… - [NTSB CHI89LA097](https://openairdocs.org/ntsb/CHI89LA097.md): Piper PA-22-108 · Necedah, WI · Accident · Serious injuries · Limited investigation · Final report · May 27, 1989 · N4526Z · Substantial damage > Pilot-in-command's improper use of the fuel selector. - [NTSB CHI88LA189](https://openairdocs.org/ntsb/CHI88LA189.md): Cessna 152 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Aug 3, 1988 · N93411 · Substantial damage - [NTSB CHI88LA149](https://openairdocs.org/ntsb/CHI88LA149.md): Piper PA-38-112 · Grafton, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1988 · N2496K · Substantial damage > While landing at a 1,900' sod airstrip with a 10 knot crosswind, the aircraft swerved to the left, ran off the runway and struck some small trees and shrubs. The pilot lacked total experience in low wing aircraft and lacked familiarity with that particular… - [NTSB CHI88LA116](https://openairdocs.org/ntsb/CHI88LA116.md): Champion 7GCBC · La Crosse, WI · Accident · Minor injuries · Limited investigation · Final report · May 21, 1988 · N9686S · Substantial damage - [NTSB CHI87LA206](https://openairdocs.org/ntsb/CHI87LA206.md): Cessna 152 · Phillips, WI · Accident · No injuries · Limited investigation · Final report · Aug 30, 1987 · N67795 · Substantial damage > During the takeoff phase of a touch and go landing the student pilot lost directional control of the aircraft. The aircraft exited the runway to the left, struck a ditch and overturned. The student's instructor, who was a witness to the accident states that… - [NTSB CHI87LA127](https://openairdocs.org/ntsb/CHI87LA127.md): Cessna 152 · Waukesha, WI · Accident · No injuries · Limited investigation · Final report · May 13, 1987 · N5286P · Substantial damage > According to the plt, he entered downwind for rwy 18 and the apch 'seemed normal.' The plt stated that he 'slipped into wind' on final apch and extended ten degrees of flaps, but when he straightened out, the acft 'veered' to the left suddenly. According to… - [NTSB CHI87LA122](https://openairdocs.org/ntsb/CHI87LA122.md): Cessna 152 · Footville, WI · Accident · No injuries · Limited investigation · Final report · May 5, 1987 · N49752 · Substantial damage > Pilot landed in a field to practice an emergency landing. After two unsuccessful attempts to takeoff from the soft, plowed field, the pilot taxiied onto a two-lane road. On lift off the left wing struck a road sign. - [NTSB CHI86LA167](https://openairdocs.org/ntsb/CHI86LA167.md): Cessna A152 · Middleton, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1986 · N761UA · Substantial damage > The student pilot stated that he was practicing soft field takeoffs on a grass strip. He aborted his first attempt to make an intersection takeoff. On his second try, he thought he could get airborne, but did not. The aircraft struck an embankment near the… - [NTSB CHI86LA159](https://openairdocs.org/ntsb/CHI86LA159.md): Cessna 152 · Shiocton, WI · Accident · No injuries · Limited investigation · Final report · Jun 20, 1986 · N5220M · Substantial damage > CFI delayed corrective action during a practice forced landing by a student. Aircraft touched down with insufficient runway remaining to stop safely. During the subsequent go-around attempt the aircraft rolled into a plowed field and nosed over. - [NTSB CHI86FEP03](https://openairdocs.org/ntsb/CHI86FEP03.md): Steinorth Extra Long EZ · Kenosha, WI · Accident · Minor injuries · Final report · Apr 11, 1986 · N123AE · Substantial damage > During an apch to land, the eng of the home built acft lost power. The plt tried to restart the eng by using the ignition switch, but was unable. He turned to land in a pasture, but the acft hit an electrical wire & came to rest in a row of trees. The plt… - [NTSB CHI85LA215](https://openairdocs.org/ntsb/CHI85LA215.md): Cessna 152 · Marshfield, WI · Accident · No injuries · Limited investigation · Final report · May 27, 1985 · N67955 · Substantial damage > The pilot made a precautionary landing in a field. After checking the acft fuel tanks he attempted to takeoff on a gravel road. During the ground run the acft collided with trees & skidded into a field. - [NTSB CHI85LA192](https://openairdocs.org/ntsb/CHI85LA192.md): Cessna A152 · West Bend, WI · Accident · No injuries · Limited investigation · Final report · May 8, 1985 · N4799A · Substantial damage > Plt departed fondulac, WI, with full fuel (24.5 gallons usable) and flew aprx 25 miles south where 2 1/2 hrs were spent taking aerial photographs. Flt then proceeded aprx 60 miles to manitowoc, WI where a landing was made. Departure was then made with aprx 9… - [NTSB CHI85FA185](https://openairdocs.org/ntsb/CHI85FA185.md): Beech B35 · Sussex, WI · Accident · No injuries · Field investigation · Final report · May 2, 1985 · N5182C · 2 aircraft · Substantial damage > A student plt was on his 1st solo x-country flt in a Cessna 152, N6464L. After taking off at the brookfield arpt (elev 850 ft), he had climbed to 2000 ft MSL & was heading 350 deg when he saw a Beech B35 (bonanza), N5182C, converging from his right. The… - [NTSB CHI85LA183](https://openairdocs.org/ntsb/CHI85LA183.md): Cessna 152 · Broadhead, WI · Accident · No injuries · Limited investigation · Final report · Apr 29, 1985 · N25227 · Substantial damage > The plt stated that during arrival, he entered a traffic pattern for what he thought, according to his directional gyro, was rwy 9. Rwy 9 was 2500 ft long; however, he landed on rwy 3, which was 1520 ft long. During the landing, the plt was unable to stop on… - [NTSB CHI84LA358](https://openairdocs.org/ntsb/CHI84LA358.md): Piper PA-12 · Cottage Grove, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 1984 · N7890H · Substantial damage > While over-flying a local arpt at aprx 200 ft AGL the eng lost power. A forced landing was made in an adjacent alfalfa field. The acft landed hard in a nose low attitude and came to rest about 90 ft from initial ground contact. - [NTSB CHI84FA321](https://openairdocs.org/ntsb/CHI84FA321.md): S.I. Briggs Varieze · Pickett, WI · Accident · No injuries · Field investigation · Final report · Jul 29, 1984 · N15EZ · Destroyed > The acft contacted a 25 ft AGL 2 strand 14000 v power line. After contacting the lines, the acft touched down in a corn field and traveled for aprx 210 ft. the acft then crossed a 2 lane road, struck a ditch separating the canard/gear and traveled an… Next page: https://openairdocs.org/ntsb.md?engine=41505&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 ('41505')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41505&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.