# NTSB investigations, 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 25 of 61 · 3,022 cases

## Cases, newest first

- [NTSB CHI89FA154](https://openairdocs.org/ntsb/CHI89FA154.md): Ryan PT-22 · Oshkosh, WI · Accident · Minor injuries · Field investigation · Final report · Jul 31, 1989 · N54403 · 2 aircraft · Substantial damage
  > The experimental aircraft association's (eaa's) inadequate procedure for providing control and separation of aircraft, its inadequate surveillance of the operation, and inadequate coordination by ground personnel. Related factors were: the ground personnel's…
- [NTSB CHI89FA153](https://openairdocs.org/ntsb/CHI89FA153.md): Cessna 182Q · Oshkosh, WI · Accident · No injuries · Field investigation · Final report · Jul 30, 1989 · N95915 · 2 aircraft · Substantial damage
  > The pilot of Cessna N95914 misjudging the distance necessary to avoid collisions with a the standing Piper N5937W.
- [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 CHI89FA151](https://openairdocs.org/ntsb/CHI89FA151.md): Cessna A152 · Oshkosh, WI · Accident · Minor injuries · Field investigation · Final report · Jul 29, 1989 · N7610A · Destroyed
  > The pilot's poor judgement, and poor evaluation of the weather due to self induced pressure and overconfidence in his personal ability. Contributing factor was the experimental aircraft association's inadequate supervision of the operation.
- [NTSB CHI89FA150](https://openairdocs.org/ntsb/CHI89FA150.md): Prospector FK-1 · Chilton, WI · Accident · No injuries · Field investigation · Final report · Jul 29, 1989 · N4XK · Substantial damage
  > The pilot's poor in flight planning in that he diverted his attention and continued the flight beyond the original period planned. Before takeoff the pilot was aware of his fuel endurance.
- [NTSB CHI89DEP08](https://openairdocs.org/ntsb/CHI89DEP08.md): James Eggleston Varieze · Cottage Grove, WI · Accident · No injuries · Final report · Jul 29, 1989 · N13EG · Substantial damage
  > The pilot misjudged altitude and distance to the runway and failed to attain the proper touchdown point for a landing. Factors related to the accident were: adverse weather conditions and uneven terrain short of the runway.
- [NTSB CHI89DEP09](https://openairdocs.org/ntsb/CHI89DEP09.md): Cabrinha/Free Spirit 412 · Waukesha, WI · Accident · No injuries · Final report · Jul 28, 1989 · N412RC · Substantial damage
  > The plt became lost/disoriented and allowed fuel exhaustion to occur before accomplishing remedial action. Factors related to the accident were: the adverse environmental conditions and the road sign and vehicles in the emergency landing area.
- [NTSB CHI89LA147](https://openairdocs.org/ntsb/CHI89LA147.md): Piper PA-38-112 · River Falls, WI · Accident · 1 fatal · Limited investigation · Final report · Jul 27, 1989 · N25687 · Destroyed
  > Improper remedial action by the pilot following an abrupt maneuver. The pilot's lack of total aviation experience was a factor in the accident.
- [NTSB CHI89LA164](https://openairdocs.org/ntsb/CHI89LA164.md): Piper PA38-112 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Jul 24, 1989 · N9103A · Substantial damage
  > Student pilot's misjudged aircraft handling during the landing flare/touchdown, and the cfi's inadequate supervision of the operation. These resulted in an abrupt touchdown, a subsequent loss of directional control, and the aircraft's collision with the VASI…
- [NTSB CHI89LA141](https://openairdocs.org/ntsb/CHI89LA141.md): Cessna R172K · Wisconsin Dells, WI · Accident · No injuries · Limited investigation · Final report · Jul 22, 1989 · N736DA · Substantial damage
  > Failure of the pilot to insure the oil filler cap was properly secured when he serviced the aircraft before takeoff, and subsequent loss of oil and oil exhaustion. The tree was considered to be a contributing factor.
- [NTSB CHI89DEP07](https://openairdocs.org/ntsb/CHI89DEP07.md): Hiller UH-12E · Blackriverfalls, WI · Accident · Minor injuries · Final report · Jul 20, 1989 · N48313 · Destroyed
  > Pilot-in-command's failure to jettison the external load followed by his misjudgement of distance to avoid collision with the external load.
- [NTSB CHI89LA137](https://openairdocs.org/ntsb/CHI89LA137.md): Piper PA-28-180 · Chippewa Falls, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 1989 · N8005W · Substantial damage
  > The pilot's failure to maintain directional control while attempting to land in crosswind conditions. During the ensuing aborted landing, the pilot failed to ensure adequate obstacle clearance and the aircraft's left wing struck the wind sock pole.
- [NTSB CHI89LA133](https://openairdocs.org/ntsb/CHI89LA133.md): Cessna 150 · Iola, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1989 · N4054J · Substantial damage
  > The improper preflight planning by the pilot in command resulting in the airplane fuel quantity being near the unusable quantity which resulted in total loss of engine power due to fuel starvation while maneuvering. Contributing to the accident was the pilots…
- [NTSB CHI89DEP06](https://openairdocs.org/ntsb/CHI89DEP06.md): Aeronca 15AC · Fort Atkinson, WI · Accident · Minor injuries · Final report · Jul 3, 1989 · N1271H · Substantial damage
  > Water contamination of the fuel and the pilot's inadequate preflight. Factors related to the accident were: lack of suitable terrain for a forced landing & trees.
- [NTSB CHI89LA125](https://openairdocs.org/ntsb/CHI89LA125.md): Aerofab Lake LA 4-200 · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N65717 · Substantial damage
  > The pilot's encounter with unsuitable terrain (rough water) and his inability to maintain directional control.
- [NTSB CHI89DEP12](https://openairdocs.org/ntsb/CHI89DEP12.md): Schuning/Teratorn Terra II · New Berlin, WI · Accident · Serious injuries · Final report · Jun 25, 1989 · N87KS · Destroyed
  > Failure of the pilot to maintain adequate airspeed during the go-around, which resulted in an inadvertent stall.
- [NTSB CHI89FA113](https://openairdocs.org/ntsb/CHI89FA113.md): Cessna 150L · Wisc Rapids, WI · Accident · 1 fatal · Field investigation · Final report · Jun 18, 1989 · N6878G · Destroyed
  > The pilot's failure to assure that the flaps were in the up position during takeoff. A factor related to the accident was the pilot's lack of familiarity with aircraft.
- [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 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 CHI89DEP05](https://openairdocs.org/ntsb/CHI89DEP05.md): Piper PA-25-235 · Suring, WI · Accident · Minor injuries · Final report · May 22, 1989 · N4395Y · Substantial damage
  > Improper planning/decision by the pilot, which resulted in fuel exhaustion and loss of engine power due to an inadequate supply of fuel. Factors related to th accident were: the lack of suitable terrain and trees in the emergency landing area.
- [NTSB CHI89DEP04](https://openairdocs.org/ntsb/CHI89DEP04.md): Hiller UH-12E · Waterford, WI · Accident · No injuries · Final report · May 22, 1989 · N3829 · Substantial damage
  > The pilot's inability to maintain control during an autorotational landing attempt following the failure of the main rotor drive train torsional coupling.
- [NTSB CHI89LA091](https://openairdocs.org/ntsb/CHI89LA091.md): Piper PA-28RT-201 · Ojibwa, WI · Accident · No injuries · Limited investigation · Final report · May 14, 1989 · N82702 · Substantial damage
  > Improper planning/decision by the pilot and his delay in aborting the takeoff. Contributing factors were: the wet/upward sloping condition of the airstrip, unfavorable wind, high obstructions (tall trees/obstacles at the end of the runway), and high…
- [NTSB CHI89LA087](https://openairdocs.org/ntsb/CHI89LA087.md): Piper PA-24-250 · Waunakee, WI · Accident · No injuries · Limited investigation · Final report · May 14, 1989 · N7465P · Substantial damage
  > Slippage of a bearing, which resulted in blockage of the lubrication system, and subsequent failure of a connecting rod.
- [NTSB CHI89DEP03](https://openairdocs.org/ntsb/CHI89DEP03.md): Tesmer Glassair SH-2 · Watertown, WI · Accident · No injuries · Final report · Apr 30, 1989 · N29HJ · Substantial damage
  > Lack fuel flow to the engine (fuel starvation) due to an undetermined fuel system problem.
- [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 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 CHI89FA071](https://openairdocs.org/ntsb/CHI89FA071.md): Sikorsky S-58T · Milwaukee, WI · Accident · Serious injuries · Field investigation · Final report · Apr 11, 1989 · N4247U · Substantial damage
  > Disconnect of the tailrotor drive shaft coupling.
- [NTSB CHI89LA066](https://openairdocs.org/ntsb/CHI89LA066.md): Cessna 170B · Freedom, WI · Accident · No injuries · Limited investigation · Final report · Apr 2, 1989 · N3016A · Substantial damage
  > The pilot's failure to maintain directional control during the attempted takeoff on unsuitable terrain. The pilot's lack of recent flight experience was a contributing factor.
- [NTSB CHI89DEP02](https://openairdocs.org/ntsb/CHI89DEP02.md): Cessna 172M · West Bend, WI · Accident · No injuries · Final report · Mar 27, 1989 · N9578V · Substantial damage
  > Partial failure of the throttle cable. Unsuitable (soft) terrain and transmission wires in the landing area were considered to be factors.
- [NTSB CHI89LA055](https://openairdocs.org/ntsb/CHI89LA055.md): Cessna 172N · Superior, WI · Accident · No injuries · Limited investigation · Final report · Mar 5, 1989 · N5315D · Substantial damage
  > Failure of the pilot to maintain directional control during the landing, which resulted in an inadvertent ground swerve. Factors related to the accident were the icy and snow covered runway conditions and the snowbank.
- [NTSB CHI89LA053](https://openairdocs.org/ntsb/CHI89LA053.md): Aeronca 7KCAB · Pine Creek, WI · Accident · No injuries · Limited investigation · Final report · Mar 5, 1989 · N9044L · Substantial damage
  > The pilot's selection of unsuitable terrain which resulted in the failure to achieve a proper climb rate which resulted in the collision with trees. Contributing to the accident was the uphill, snow covered terrain.
- [NTSB CHI89LA050](https://openairdocs.org/ntsb/CHI89LA050.md): Piper PA-28R-201 · Stevens Point, WI · Accident · No injuries · Limited investigation · Final report · Feb 12, 1989 · N16TP · Substantial damage
  > Failure of the pilot to maintain directional control which resulted in an inadvertent ground swerve.
- [NTSB CHI89LA051](https://openairdocs.org/ntsb/CHI89LA051.md): Cessna 182A · Baldwin, WI · Accident · No injuries · Limited investigation · Final report · Feb 11, 1989 · N4028D · Substantial damage
  > Failure of the pilot to go around when he landed long with too much speed for the conditions. Factors related to the accident were: the pilot's excessive airspeed, his failure to attain the proper touchdown point, the crosswind, snowy/icy runway conditions,…
- [NTSB CHI89FA049](https://openairdocs.org/ntsb/CHI89FA049.md): Cessna 172RG · Mosinee, WI · Accident · 3 fatal · Field investigation · Final report · Feb 8, 1989 · N6525V · Destroyed
  > Spatial disorientation of the pilot as a result of initiating the flight into known adverse weather. Factors related to the accident were: dark night, snow, and low ceilings.
- [NTSB CHI89DEP01](https://openairdocs.org/ntsb/CHI89DEP01.md): Cessna T337G · Green Bay, WI · Accident · 1 fatal · Final report · Jan 26, 1989 · N6CF · Destroyed
  > The pilot's loss of aircraft control, due to the loss of cockpit/instrument panel lighting for an undetermined reason, the inoperative penlight, and subsequent spatial disorientation of the pilot. Factors related to the accident were: darkness and the adverse…
- [NTSB CHI89LA044](https://openairdocs.org/ntsb/CHI89LA044.md): Cessna 150J · Osceola, WI · Accident · No injuries · Limited investigation · Final report · Jan 15, 1989 · N61306 · Substantial damage
  > Inadequate preflight by the student pilot, inadequate supervision (to assure a proper preflight) by the instructor pilot (CFI), and water contamination of the fuel. The terrain was considered to be a contributing factor.
- [NTSB CHI89IA034](https://openairdocs.org/ntsb/CHI89IA034.md): Aerospatiale ATR-42 · Mosinee, WI · Incident · No injuries · Incident investigation · Final report · Dec 22, 1988 · N427MQ · No damage
  > Stall induced by the accretion of moderate to severe clear icing.
- [NTSB CHI89IA023](https://openairdocs.org/ntsb/CHI89IA023.md): British Aerospace JS-3101 · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Nov 10, 1988 · N333PX · Minor damage
  > Loss of lubrication to the outer wheel bearing, and the subsequent disintegration of the bearing. Contributing to the incident was the failure by maintenance personnel to properly inspect and grease the bearing.
- [NTSB CHI89LA016](https://openairdocs.org/ntsb/CHI89LA016.md): Beech F35 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Oct 23, 1988 · N104TG · Substantial damage
  > While executing a VOR approach and circling to land, the aircraft collided with trees and a fence, then impacted on a roadway short of the runway. The pilot had obtained a full weather briefing prior to his departure. The weather briefing included SIGMET golf…
- [NTSB CHI88FA248](https://openairdocs.org/ntsb/CHI88FA248.md): Cessna 210L · Monroe, WI · Accident · 2 fatal · Field investigation · Final report · Sep 30, 1988 · N5268V · Destroyed
- [NTSB CHI88LA245](https://openairdocs.org/ntsb/CHI88LA245.md): Cessna 150F · Baraboo, WI · Accident · No injuries · Limited investigation · Final report · Sep 25, 1988 · N381VU · Substantial damage
  > While landing on a sod strip with an 11 knot quartering tailwind, the aircraft drifted to the left of the runway and encountered uneven terrain. The pilot reported that he failed to maintain directional control and was unable to avoid a ditch with standing…
- [NTSB CHI88DEP13](https://openairdocs.org/ntsb/CHI88DEP13.md): Heibel AIR Command 532 · Cottage Grove, WI · Accident · 1 fatal · Final report · Sep 21, 1988 · N7015C · Destroyed
  > While in cruise flight this amateur built gyrocopter experienced a main rotor strike to the rudder and propeller. The student pilot who had a total of eight hours flight time, all in this aircraft, was conducting a solo flight in this dual control gyrocopter.…
- [NTSB CHI88LA238](https://openairdocs.org/ntsb/CHI88LA238.md): Piper PA-28-151 · Kenosha, WI · Accident · No injuries · Limited investigation · Final report · Sep 18, 1988 · N6252J · Substantial damage
  > While on a VFR approach to the airport, at night, the pilot misidentified the street lights in a mobile home park as the runway lights and descended into wires. Afterward the pilot was able to continue to the intended runway and made a successful landing.…
- [NTSB CHI88DEP12](https://openairdocs.org/ntsb/CHI88DEP12.md): Piper PA-36-300 · Pulaski, WI · Accident · 1 fatal · Final report · Sep 14, 1988 · N57847 · Destroyed
  > The aircraft descended at a high rate of speed, 75 degrees nosedown, into the terrain. His widow stated that the pilot had left home at approximately 2100 CST on the accident night, in an inebriated condition. After a discussion about his drinking, he…
- [NTSB CHI88LA232](https://openairdocs.org/ntsb/CHI88LA232.md): Piper PA-32-260 · Watertown, WI · Accident · Serious injuries · Limited investigation · Final report · Sep 8, 1988 · N9346C · Destroyed
  > The pilot in command's improper selection of the fuel tank, and his subsequent failure to maintain control of the aircraft.
- [NTSB CHI88LA224](https://openairdocs.org/ntsb/CHI88LA224.md): Cessna 182RG · Dodgeville, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 28, 1988 · N728JS · Substantial damage
  > While attempting to land on a runway with wind gusts and a quartering tailwind, the pilot failed to adequately judge and compensate for the wind conditions. The aircraft landed long, and the pilot was unable to bring the aircraft to a stop before the end of…
- [NTSB CHI88LA215](https://openairdocs.org/ntsb/CHI88LA215.md): Cessna 170 · Boyceville, WI · Accident · No injuries · Limited investigation · Final report · Aug 21, 1988 · N3804V · Substantial damage
  > Shortly after lift-off, the aircraft encountered a gust of wind and the pilot failed to compensate adequately for the wind conditions. The pilot experienced a loss of aircraft control and decided to reject the takeoff and execute a landing. The aircraft…
- [NTSB CHI88DER09](https://openairdocs.org/ntsb/CHI88DER09.md): Smith Miniplane · Superior, WI · Accident · Serious injuries · Final report · Aug 21, 1988 · N39F · Substantial damage
  > While in normal cruise the aircraft experienced a total loss of engine power. The pilot executed an emergency descent to a forced landing. The aircraft encountered unsuitable terrain which resulted in a hard landing and substantial damage to the aircraft. The…
- [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 CHI88LA212](https://openairdocs.org/ntsb/CHI88LA212.md): Cessna 172F · Crandon, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 17, 1988 · N5318R · Substantial damage
  > During cruise flight in deteriorating meteorological conditions, the pilot experienced a total loss of engine power. The pilot performed emergency procedures, was unable to restart the engine, and executed a forced landing in a clover field. The aircraft…

Next page: https://openairdocs.org/ntsb.md?state=WI&page=26

## 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'
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?page=25&state=WI

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