# NTSB investigations, 1989, 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 · 56 cases

## Latest cases

- [NTSB CHI90FA056](https://openairdocs.org/ntsb/CHI90FA056.md): Cessna 340 · Merrill, WI · Accident · No injuries · Field investigation · Final report · Dec 28, 1989 · N69556 · Substantial damage
  > Failure of the pilot to maintain proper alignment with the runway during his landing roll and an inflight encounter with icing conditions.
- [NTSB CHI90FA055](https://openairdocs.org/ntsb/CHI90FA055.md): Beech A24R · Merrill, WI · Accident · 3 fatal · Field investigation · Final report · Dec 28, 1989 · N37329 · Destroyed
  > Flight into known adverse weather by the pilot, and structural/wing ice. Factors related to the accident were: the icing conditions and trees in the area of the accident.
- [NTSB CHI90LA046](https://openairdocs.org/ntsb/CHI90LA046.md): Cessna 150M · Lacrosse, WI · Accident · Minor injuries · Limited investigation · Final report · Dec 18, 1989 · N704NP · Substantial damage
  > The student pilot's improper pre-flight planning/preparation, which did not include a plan to refuel the aircraft as necessary. The student pilot's lack of total experience contributed to this accident, as did the cfi's inadequate supervision of the student.
- [NTSB CHI90LA041](https://openairdocs.org/ntsb/CHI90LA041.md): Cessna 172N II · Middleton, WI · Accident · No injuries · Limited investigation · Final report · Dec 10, 1989 · N75912 · Substantial damage
  > The pilot's improper use of flaps to provide lift on short final approach instead of applying power and the failure to maintain aircraft control.
- [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 CHI90DEP02](https://openairdocs.org/ntsb/CHI90DEP02.md): Rotec Panther 2+ · Holmen, WI · Accident · Serious injuries · Final report · Dec 1, 1989 · UNREG · Substantial damage
  > Inadvertent partial deployment of the emergency ballistic recovery parachute resulting in a loss of engine thrust and aerodynamic control of the aircraft.
- [NTSB CHI90LA035](https://openairdocs.org/ntsb/CHI90LA035.md): Piper PA-22 · Barron, WI · Accident · No injuries · Limited investigation · Final report · Nov 30, 1989 · N8749D · Substantial damage
  > Improper use of the carburetor heat by the pilot and subsequent carburetor ice. Contributing factors were: carburetor icing conditions, slick (wet/snow covered) runway, and trees/brush near the departure end of the runway.
- [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 CHI90FA028](https://openairdocs.org/ntsb/CHI90FA028.md): Beech A36 · Shell Lake, WI · Accident · 3 fatal · Field investigation · Final report · Nov 14, 1989 · N1607W · Destroyed
  > The pilot-in-command's failure to perform a missed approach, his descending below the minimum descent altitude, and his failure to maintain proper altitude to avoid impact with the terrain. Contributing to the accident was the pilot-in-command's lack of total…
- [NTSB CHI90DEP01](https://openairdocs.org/ntsb/CHI90DEP01.md): Wychen Challenger II · Warrens, WI · Accident · Serious injuries · Final report · Oct 22, 1989 · N91269 · Substantial damage
  > A broken cranskshaft which resulted in the loss of power. A factor related to the accident was: the lack of suitable terrain for a forced landing.
- [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 CHI90LA010](https://openairdocs.org/ntsb/CHI90LA010.md): Cessna 172M · Cedarburg, WI · Accident · No injuries · Limited investigation · Final report · Oct 14, 1989 · N1325U · Substantial damage
  > Delay of the flight instructor (CFI) in making a go-around and his failure to attain sufficient airspeed to climb after taking off again. The transmission wire (power line) and high vegetation were contributing factors.
- [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 CHI89LA176](https://openairdocs.org/ntsb/CHI89LA176.md): Piper PA-23-160 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Aug 27, 1989 · N8886 · Substantial damage
  > Inadvertent retraction of the landing gear by the pilot. His habit interference and lack of experience in the type of aircraft were contributing factors.
- [NTSB CHI89DEP11](https://openairdocs.org/ntsb/CHI89DEP11.md): Tierra II Panther 2 Plus · Tomah, WI · Accident · Minor injuries · Final report · Aug 23, 1989 · N22KK · Substantial damage
  > The pilot's premature liftoff, which resulted in a stall/mush and subsequently impact on the runway.
- [NTSB CHI89FA174](https://openairdocs.org/ntsb/CHI89FA174.md): Cessna 172P · Superior, WI · Accident · Serious injuries · Field investigation · Final report · Aug 17, 1989 · N98584 · Substantial damage
  > The failure of the pilot to maintain directional control.
- [NTSB CHI89FA165](https://openairdocs.org/ntsb/CHI89FA165.md): Bell 47G-2A-1 · Wisconsin Dells, WI · Accident · Serious injuries · Field investigation · Final report · Aug 14, 1989 · N49HB · Substantial damage
  > Attempt by the pilot to exceed the hover performance capabilities of the helicopter, and operating outside the weight and balance limitations. The pilot's overconfidence in the helicopter's ability and his subsequent failure to adequately prepare and plan…
- [NTSB CHI89LA159](https://openairdocs.org/ntsb/CHI89LA159.md): Cessna 170A · Brookfield, WI · Accident · No injuries · Limited investigation · Final report · Aug 4, 1989 · N9762A · Substantial damage
  > The pilot-in-command's failure to take proper corrective action after encountering a wind gust on landing.
- [NTSB CHI89FA155](https://openairdocs.org/ntsb/CHI89FA155.md): Lancair 235 · Fond Du Lac, WI · Accident · 2 fatal · Field investigation · Final report · Aug 1, 1989 · N385L · Destroyed
  > Failure of the pilot-in-command to assure that adequate airspeed was maintained during the turn to final approach, which resulted in an inadvertent stall/spin.
- [NTSB CHI89DEP10](https://openairdocs.org/ntsb/CHI89DEP10.md): Air Tractor AT-301 · Plainfield, WI · Accident · 1 fatal · Final report · Aug 1, 1989 · N5044S · Destroyed
  > Failure of the pilot-in-command to maintain control of the aircraft while conducting aerial application maneuvers in close proximity to the terrain.
- [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.

Next page: https://openairdocs.org/ntsb.md?year=1989&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 year(c."eventDate") = 1989
  AND 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?state=WI&year=1989

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