# NTSB investigations: Lycoming O&VO-360 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 · 106 cases ## Latest cases - [NTSB CEN26LA258](https://openairdocs.org/ntsb/CEN26LA258.md): Vans RV-8A · Mineral Point, WI · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 17, 2026 · N22SZ · Substantial damage > On July 17, 2026, at 1748 central daylight time, an experimental amateur-built Vans Aircraft Inc RV-8A, N22SZ, sustained substantial damage when it was involved in an accident in Mineral Point, Wisconsin. The commercial pilot was uninjured. The airplane was… - [NTSB CEN24LA299](https://openairdocs.org/ntsb/CEN24LA299.md): Cessna 177A · Palmyra, WI · Accident · No injuries · Class 4 · Limited · Final report · Aug 2, 2024 · N30433 · Substantial damage > The student pilot’s failure to maintain directional control during the landing with gusty wind conditions. - [NTSB CEN24LA097](https://openairdocs.org/ntsb/CEN24LA097.md): Robinson Helicopter R22 Beta · Kenosha, WI · Accident · Serious injuries · Class 4 · Limited · Final report · Jan 21, 2024 · N8350M · Substantial damage > The pilot’s failure to maintain control of the helicopter while landing. - [NTSB CEN23LA368](https://openairdocs.org/ntsb/CEN23LA368.md): Piper PA-28-180 · Eagle River, WI · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 18, 2023 · N7921W · Substantial damage > The pilot’s failure to maintain proper airspeed on approach, which resulted in an extended touchdown, loss of control, and runway excursion. - [NTSB CEN23LA099](https://openairdocs.org/ntsb/CEN23LA099.md): Piper PA-28-160 · Eau Claire, WI · Accident · No injuries · Class 3 · Limited · Final report · Feb 5, 2023 · N9770J · Destroyed > The engine fire that began for undetermined reasons following numerous engine start attempts. - [NTSB CEN22LA441](https://openairdocs.org/ntsb/CEN22LA441.md): Piper PA-28-180 · Shell Lake, WI · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2022 · N5152S · Substantial damage > A collision with a deer during landing, which resulted in substantial damage to the left wing. - [NTSB CEN22LA440](https://openairdocs.org/ntsb/CEN22LA440.md): Beech C23 · Merrill, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 27, 2022 · N2240L · Substantial damage > The student pilot's failure to maintain adequate roll control during takeoff with a quartering tailwind. - [NTSB CEN21LA213](https://openairdocs.org/ntsb/CEN21LA213.md): Beech C23 · Merrill, WI · Accident · Minor injuries · Class 3 · Limited · Final report · May 11, 2021 · N793Y · Substantial damage > The loss of engine power due to tappet failure. - [NTSB GAA18CA171](https://openairdocs.org/ntsb/GAA18CA171.md): Beech 76 · Oshkosh, WI · Accident · No injuries · Data collection · Final report · Mar 9, 2018 · N969RA · Substantial damage > The pilot’s failure to extend the landing gear and the flight instructor’s failure to ensure that the landing gear were extended during landing. Contributing to the accident were the pilot’s and the instructor’s improper use of checklist. - [NTSB GAA17CA412](https://openairdocs.org/ntsb/GAA17CA412.md): Mooney M20C · Washington Island, WI · Accident · No injuries · Data collection · Final report · Jul 15, 2017 · N9303V · Substantial damage > The pilot's failure to maintain a proper approach path, which resulted in impact with trees. - [NTSB CEN16CA383](https://openairdocs.org/ntsb/CEN16CA383.md): Mooney M20D · Brodhead, WI · Accident · Minor injuries · Data collection · Final report · Sep 11, 2016 · N6919U · Substantial damage > The pilot's loss of airplane control during initial climb due to an excessively nose-high attitude. Contributing to the accident was the pilot's failure to properly set the elevator trim before takeoff in accordance with the Before Takeoff checklist. - [NTSB GAA15CA009](https://openairdocs.org/ntsb/GAA15CA009.md): Beech 76 · Juda, WI · Accident · No injuries · Data collection · Final report · Mar 16, 2015 · N6700D · Substantial damage > The pilot's improper fuel planning, which resulted in fuel exhaustion, and a loss of engine power enroute. - [NTSB CEN14LA443](https://openairdocs.org/ntsb/CEN14LA443.md): Piper PA 28-181 · Waukesha, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 2014 · N9681K · Substantial damage > The loss of engine power for reasons that could not be determined because no anomalies were identified during postaccident examination. - [NTSB CEN12LA661](https://openairdocs.org/ntsb/CEN12LA661.md): Lake LA4 · Kenosha, WI · Accident · No injuries · Limited investigation · Final report · Sep 27, 2012 · N1127L · Substantial damage > The loss of engine power for reasons that could not be determined because examination and test run of the engine did not reveal any anomalies that would have precluded normal operation. - [NTSB CEN12CA406](https://openairdocs.org/ntsb/CEN12CA406.md): Piper PA-24 · Watertown, WI · Accident · No injuries · Data collection · Final report · Jul 1, 2012 · N6580P · Substantial damage > The pilot’s failure to extend the landing gear before landing. - [NTSB CEN12CA380](https://openairdocs.org/ntsb/CEN12CA380.md): Piper PA-28-181 · Sheboygan, WI · Accident · No injuries · Data collection · Final report · Jun 15, 2012 · N721SM · Substantial damage > The pilot’s failure to maintain directional control during the takeoff roll. - [NTSB CEN11LA632](https://openairdocs.org/ntsb/CEN11LA632.md): Piper/Cub Crafters PA-18-150 · Long Lake, WI · Accident · Minor injuries · Limited investigation · Final report · Sep 8, 2011 · N902CC · Substantial damage > The pilot's failure to complete the prelanding checklist, which resulted in the landing gear wheels not being retracted for the water landing. - [NTSB CEN11LA430](https://openairdocs.org/ntsb/CEN11LA430.md): Piper PA-28-180 · Barron, WI · Accident · No injuries · Limited investigation · Final report · Jun 29, 2011 · N9002J · Substantial damage > The loss of engine power, which resulted from fuel exhaustion due to the pilot's inadequate in-flight planning. - [NTSB CEN09FA340](https://openairdocs.org/ntsb/CEN09FA340.md): Gulfstream American AA-5B · Humbird, WI · Accident · 2 fatal · Field investigation · Final report · Jun 7, 2009 · N448DM · Substantial damage > The pilot's decision to attempt a visual flight rules flight into an area of known instrument meteorological conditions, which resulted in a loss of control due to spatial disorientation. - [NTSB CHI08LA230](https://openairdocs.org/ntsb/CHI08LA230.md): Cessna 172RG · Tomahawk, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2008 · N6520R · Substantial damage > A total loss of engine power due to a loss of all of the engine's oil as a result of the safety wire on the governor idler gear shaft's oil plug breaking, leading to the oil plug coming unscrewed. Contributing to the accident was the lack of a suitable area… - [NTSB CHI06LA031](https://openairdocs.org/ntsb/CHI06LA031.md): Piper PA-28-181 · Milwaukee, WI · Accident · Minor injuries · Limited investigation · Final report · Nov 13, 2005 · N2241P · Substantial damage > The loss of engine power due to fuel starvation as a result of the pilot's fuel mismanagement. Factors to the accident included the pilot's impairment due to alcohol, the FAA's inadequate oversight when it issued the pilot a second class medical certificate,… - [NTSB CHI05FA180](https://openairdocs.org/ntsb/CHI05FA180.md): Piper PA-28-181 · Lake Michigan, WI · Accident · 1 fatal · Field investigation · Final report · Apr 26, 2005 · N5360F · Substantial damage > The pilot's inaccurate preflight planning and his delayed en route decision to make a fuel stop, which resulted in the loss of engine power due to fuel exhaustion and subsequent ditching. - [NTSB CHI03LA225](https://openairdocs.org/ntsb/CHI03LA225.md): Beech C23 · Madison, WI · Accident · No injuries · Limited investigation · Final report · Jul 25, 2003 · N9361S · Substantial damage > The dual student's delay in executing the aborted takeoff. Also causal was the pilot-in-command's delayed remedial action. - [NTSB CHI03FA018](https://openairdocs.org/ntsb/CHI03FA018.md): Piper PA-24 · Fond du Lac, WI · Accident · 2 fatal · Field investigation · Final report · Nov 4, 2002 · N6606P · Destroyed > The pilot failed to maintain obstacle clearance from the power lines while on a night VFR approach. Factors to the accident included the dark night and the power lines. - [NTSB CHI02LA290](https://openairdocs.org/ntsb/CHI02LA290.md): Christen Industries A-1 · Chetek, WI · Accident · No injuries · Limited investigation · Final report · Sep 15, 2002 · N9598C · Substantial damage > The pilot's failure to maintain directional control of the airplane, and his failure to maintain clearance from the utility pole. A factor was the utility pole. - [NTSB CHI99LA270](https://openairdocs.org/ntsb/CHI99LA270.md): Beech C23 · Port Washington, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1999 · N24670 · Substantial damage > the loss of engine power for undetermined reasons. - [NTSB CHI99LA273](https://openairdocs.org/ntsb/CHI99LA273.md): Mooney M20B · Hayward, WI · Accident · No injuries · Limited investigation · Final report · Jul 26, 1999 · N74523 · Substantial damage > the pilot's failure to maintain clearance with the surface of the lake. Factors associated with the accident were the low level flight, dusk light conditions, and the glassy water. - [NTSB CHI99LA246](https://openairdocs.org/ntsb/CHI99LA246.md): Piper PA-24-180 · Boscobel, WI · Accident · No injuries · Limited investigation · Final report · Jul 20, 1999 · N6316P · Substantial damage > the pilot's improper approach to landing. Factors included the carburetor icing, the delayed use of carburetor heat, the unsuitable terrain for landing, and the ditch. - [NTSB CHI98LA297](https://openairdocs.org/ntsb/CHI98LA297.md): Cessna 180 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Aug 1, 1998 · N111WF · 2 aircraft · Substantial damage > the pilot of the other airplane did not maintain proper clearance. - [NTSB CHI97FA252](https://openairdocs.org/ntsb/CHI97FA252.md): Beech 76 · New Richmond, WI · Accident · 2 fatal · Field investigation · Final report · Aug 4, 1997 · N18960 · Destroyed > The certified flight instructor's inadequate supervision and delayed remedial action and the flight crew's lack of aircraft control. A factor was loss of control while maneuvering downwind by one of the pilot's. - [NTSB CHI96LA346](https://openairdocs.org/ntsb/CHI96LA346.md): Beech B23 · Viroqua, WI · Accident · No injuries · Limited investigation · Final report · Sep 22, 1996 · N66338 · Substantial damage > the pilot's inadequate aircraft preflight which led to fuel exhaustion. A factor was the rough uneven terrain. - [NTSB CHI95LA068](https://openairdocs.org/ntsb/CHI95LA068.md): Piper PA-28-181 · Brookfield, WI · Accident · Serious injuries · Limited investigation · Final report · Jan 16, 1995 · N39955 · Destroyed > The instructor's failure to maintain clearance with trees. Factors associated with the accident were the trees and the night lighting conditions. - [NTSB CHI94LA268](https://openairdocs.org/ntsb/CHI94LA268.md): Piper PA-28-181 · Lone Rock, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 7, 1994 · N6205J · Substantial damage > the pilot's failure to attain a proper touchdown point on the runway. - [NTSB CHI94LA119](https://openairdocs.org/ntsb/CHI94LA119.md): Piper PA-28-180 · New Richmond, WI · Accident · No injuries · Limited investigation · Final report · Mar 21, 1994 · N7812W · Substantial damage > the failure of the pilot to maintain directional control. - [NTSB CHI94DEP03](https://openairdocs.org/ntsb/CHI94DEP03.md): Lancair 360 · Waukesha, WI · Accident · No injuries · Final report · Mar 11, 1994 · N3603R · Substantial damage > The pilot's improper flare during landing. Factors related to the accident were a loss of directional control and rough terrain. - [NTSB CHI94LA101](https://openairdocs.org/ntsb/CHI94LA101.md): Mooney M20C · Richland Center, WI · Accident · No injuries · Limited investigation · Final report · Mar 10, 1994 · N6811N · Substantial damage > improper use of carburetor heat. Factors related to the accident were carburetor icing conditions, and the sign and fence poles. - [NTSB CHI93LA367](https://openairdocs.org/ntsb/CHI93LA367.md): Mooney M20C · Crivitz, WI · Accident · Serious injuries · Limited investigation · Final report · Sep 19, 1993 · N6752N · Substantial damage > fuel starvation caused by foreign matter in the fuel tank strainer. - [NTSB CHI93LA071](https://openairdocs.org/ntsb/CHI93LA071.md): Don Showalter Lancair 320 · Madison, WI · Accident · No injuries · Limited investigation · Final report · Jan 14, 1993 · N18M · Substantial damage > A jammed main landing gear brake. - [NTSB CHI93LA055](https://openairdocs.org/ntsb/CHI93LA055.md): Piper PA-28-180 · West Bend, WI · Accident · Minor injuries · Limited investigation · Final report · Dec 21, 1992 · N8806J · Substantial damage > Total loss of engine power due to the failure of the pilot to select the fuel tank with the most fuel. - [NTSB CHI91LA093](https://openairdocs.org/ntsb/CHI91LA093.md): Piper PA-28-181 · Marshfield, WI · Accident · No injuries · Limited investigation · Final report · Feb 7, 1991 · N6205J · Substantial damage > Improper in-flight planning/decision by the pilot and his failure to maintain airspeed, which resulted in an inadvertent stall/mush onto snow covered terrain beside the runway. The adverse weather conditions and snow covered terrain were related factors. - [NTSB CHI90DER06](https://openairdocs.org/ntsb/CHI90DER06.md): Mooney M20C · Webster, WI · Accident · 1 fatal · Final report · Aug 12, 1990 · N9468V · Destroyed > The pilot's failure to maintain control of the airplane. Factors related to the accident were: the dark night, the pilot's alcohol impairment, and his night flying restriction. - [NTSB CHI89LA194](https://openairdocs.org/ntsb/CHI89LA194.md): Piper PA-28-180 · Mt. Horeb, WI · Accident · No injuries · Limited investigation · Final report · Sep 28, 1989 · N44502 · Substantial damage > The pilot's failure to follow proper procedures for breaking-in new brakes and the excessive touchdown speed. Contributing factors were the worn brakes. - [NTSB CHI89LA152](https://openairdocs.org/ntsb/CHI89LA152.md): Piper PA-28-180 · Watertown, WI · Accident · No injuries · Limited investigation · Final report · Jul 29, 1989 · N3954R · Substantial damage > Improper planning/decision by the pilot and his misjudgement of distance and speed during the landing, which resulted in failure to attain a proper touchdown point. Contributing factors were: the weather conditions, the pilot's continued flight into… - [NTSB CHI89LA099](https://openairdocs.org/ntsb/CHI89LA099.md): Piper PA-28-180 · Crandon, WI · Accident · Minor injuries · Limited investigation · Final report · May 28, 1989 · N4734L · Substantial damage > Improper inflight planning/decision by the pilot which resulted in loss of control & subsequent wingtip collision with the ground during the landing. The crosswind and turbulence were contributing factors. - [NTSB CHI89TL#02](https://openairdocs.org/ntsb/CHI89TL%2302.md): Bellanca Bgcbc · Shell Lake, WI · Accident · No injuries · Class 3 · Final report · Apr 17, 1989 · N7775S · Substantial damage - [NTSB CHI88LA213](https://openairdocs.org/ntsb/CHI88LA213.md): Piper PA-28-140E · Glidden, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 18, 1988 · N4476T · Substantial damage > While attempting to takeoff from a 2,175' grass strip, with the aircraft loaded near maximum gross weight, the pilot approached the end of the runway without having attained liftoff airspeed. The pilot lifted the aircraft off the ground prematurely and was… - [NTSB CHI88DEP09](https://openairdocs.org/ntsb/CHI88DEP09.md): Eaa Acro II · Fond Du Lac, WI · Accident · Minor injuries · Final report · Aug 9, 1988 · N9EA · Substantial damage > The plt rprtd that after reaching cruise alt, the eng began to run rough & subsequently lost power. He made an emerg landing in a dry cultivated field. Drg the landing, the gear collapsed & the acft was substantially damaged. The fuel tank was equipped with a… - [NTSB CHI88LA140](https://openairdocs.org/ntsb/CHI88LA140.md): Piper PA-28-180 · Portage, WI · Accident · No injuries · Limited investigation · Final report · Jun 23, 1988 · N44753 · 2 aircraft · Substantial damage > During taxi from landing the pilot failed to maintain adequate visual lookout and taxied onto a runway in front of an aircraft on its landing roll. The pilot stated that as he approached the other runway his visibility was restricted by a stand of trees, and… - [NTSB CHI88LA025](https://openairdocs.org/ntsb/CHI88LA025.md): Piper PA-28-181 · Manitowoc, WI · Accident · No injuries · Limited investigation · Final report · Nov 14, 1987 · N47622 · Substantial damage > The pilot and his two pax were on takeoff roll at the local, uncontrolled arpt. The pilot stated that just prior to rotation a deer ran onto the runway and the right wing struck the deer. The pilot aborted the takeoff without incident. - [NTSB CHI87LA092](https://openairdocs.org/ntsb/CHI87LA092.md): Mooney M-20G · Kenosha, WI · Accident · No injuries · Limited investigation · Final report · Mar 8, 1987 · N3960N · Substantial damage > While on downwind leg the pilot heard another aircraft call downwind. When he turned to final the other aircraft turned base. As he descended on final approach the other aircraft turned sharply inside the acft on final and landed. The following aircraft… Next page: https://openairdocs.org/ntsb.md?engine=41514&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 ('41514')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=41514&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.