# 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 21 of 61 · 3,021 cases

## Cases, newest first

- [NTSB CHI93LA371](https://openairdocs.org/ntsb/CHI93LA371.md): Piper PA-60-601 · Lone Rock, WI · Accident · No injuries · Limited investigation · Final report · Sep 21, 1993 · N9825Q · Substantial damage
  > Inadequate maintenance and excessive airspeed during the landing approach.
- [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 CHI93LA366](https://openairdocs.org/ntsb/CHI93LA366.md): Piper PA-32-300 · Madison, WI · Accident · No injuries · Limited investigation · Final report · Sep 17, 1993 · N823PJ · Substantial damage
  > the loose fuel selector handle/valve which resulted in an inability to properly switch fuel tanks.
- [NTSB CHI93LA349](https://openairdocs.org/ntsb/CHI93LA349.md): Boeing Stearman A75N1 · Delevan, WI · Accident · No injuries · Limited investigation · Final report · Sep 3, 1993 · N55501 · Substantial damage
  > the excessive use of brakes and rudder by the pilot-in-command. A factor related to the accident was the pilot-in-command's lack of total experience in this type of aircraft.
- [NTSB CHI93DEP05](https://openairdocs.org/ntsb/CHI93DEP05.md): Bell 47-G5 · Fulton, WI · Accident · Minor injuries · Final report · Aug 25, 1993 · N1464W · Substantial damage
  > the failure (fracture) of the number one cylinder intake valve retainer (keeper).
- [NTSB CHI93LA331](https://openairdocs.org/ntsb/CHI93LA331.md): Beech 23 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Aug 22, 1993 · N9772L · Substantial damage
  > the student pilot's improper recovery from a bounced landing.
- [NTSB CHI93DEP04](https://openairdocs.org/ntsb/CHI93DEP04.md): Jordi, Ronald H. Challenger II · Plymouth, WI · Accident · No injuries · Final report · Aug 21, 1993 · N771RH · Substantial damage
  > the loss of engine power for undetermined reason(s).
- [NTSB CHI93DEP03](https://openairdocs.org/ntsb/CHI93DEP03.md): Kit Fox IV · Green Bay, WI · Accident · No injuries · Final report · Aug 4, 1993 · N127RF · Substantial damage
  > the improper modification of the fuel system by the pilot-in-command. A factor was bockage of the fuel system screen.
- [NTSB CHI93FA296](https://openairdocs.org/ntsb/CHI93FA296.md): Grumman G58A · Oshkosh, WI · Accident · Serious injuries · Field investigation · Final report · Aug 1, 1993 · N3025 · Substantial damage
  > The pilot-in-command's inadvertent use of the mixture resulting in a lean mixture.
- [NTSB CHI93LA295](https://openairdocs.org/ntsb/CHI93LA295.md): Gardner SEA RAY · Oshkosh, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1993 · N703SR · Substantial damage
  > The pilot in command's not maintaining proper climb rate. A factor was the abrupt control interference by the passenger.
- [NTSB CHI93LA294](https://openairdocs.org/ntsb/CHI93LA294.md): North American F-51 · Fond Du Lac, WI · Accident · No injuries · Limited investigation · Final report · Jul 28, 1993 · N6327T · 2 aircraft · Minor damage
  > the pilot-in-command of the F-51's diverted attention and failure to maintain a visual outlook.
- [NTSB CHI93LA293](https://openairdocs.org/ntsb/CHI93LA293.md): Aeronca 7AC · Oshkosh, WI · Accident · No injuries · Limited investigation · Final report · Jul 28, 1993 · N81598 · Substantial damage
  > The pilot-in-command's not maintaining directional control. Factors include a crosswind, the pilot-in-command's not attaining compensation for wind conditions, and his lack of experience in this type of airplane.
- [NTSB CHI93LA288](https://openairdocs.org/ntsb/CHI93LA288.md): Murphy Rebel · Pickett, WI · Accident · No injuries · Limited investigation · Final report · Jul 27, 1993 · CFNVM · Substantial damage
  > The pilot's inadequate preflight planning which resulted in fuel exhaustion. The lack of suitable terrain for a forced landing was a factor in the accident.
- [NTSB CHI93DEP02](https://openairdocs.org/ntsb/CHI93DEP02.md): Stoeckler RV-4 · Lake Delton, WI · Accident · 1 fatal · Final report · Jul 24, 1993 · N720DS · Destroyed
  > the pilot-in-command's failure to maintain proper altitude. A factor was trees.
- [NTSB CHI93LA268](https://openairdocs.org/ntsb/CHI93LA268.md): Bell 47G-3B-1 · Elderon, WI · Accident · No injuries · Limited investigation · Final report · Jul 22, 1993 · N9010C · Substantial damage
  > The pilot's failure to refuel the helicopter.
- [NTSB CHI93LA269](https://openairdocs.org/ntsb/CHI93LA269.md): Beech A23 · Boyceville, WI · Accident · 1 fatal · Limited investigation · Final report · Jul 21, 1993 · N3578R · Destroyed
  > the failure of the pilot to attain the proper touchdown point, and his failure to perform a go-around.
- [NTSB CHI93LA258](https://openairdocs.org/ntsb/CHI93LA258.md): Maule M4 · Tomahawk, WI · Accident · No injuries · Limited investigation · Final report · Jul 16, 1993 · N9810M · Substantial damage
  > the pilot's improper recovery from a bounced landing.
- [NTSB CHI93LA253](https://openairdocs.org/ntsb/CHI93LA253.md): Cessna 210 · West Bend, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1993 · N50RD · Substantial damage
  > The inadequate preflight by pilot-in-command. A factor was the rough terrain.
- [NTSB CHI93LA246](https://openairdocs.org/ntsb/CHI93LA246.md): Cessna R172K · Middleton, WI · Accident · No injuries · Limited investigation · Final report · Jul 6, 1993 · N1015V · Substantial damage
  > The pilot in command's failure to maintain directional control of the aircraft.
- [NTSB CHI93LA237](https://openairdocs.org/ntsb/CHI93LA237.md): Daniel Squire HI-MAX · Omro, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 27, 1993 · N200D · Substantial damage
  > the pilot's inadequate preflight planning and preparation. A factor in the accident is the downdraft.
- [NTSB CHI93LA236](https://openairdocs.org/ntsb/CHI93LA236.md): Aeronca 7AC · Waukesha, WI · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1993 · N83429 · Substantial damage
  > The pilot's failure to maintain airspeed above a stall.
- [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 CHI93LA224](https://openairdocs.org/ntsb/CHI93LA224.md): Boeing 757-222 · Baraboo, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 24, 1993 · N579UA · No damage
  > an encounter with moderate turbulence in the clouds.
- [NTSB CHI93LA210](https://openairdocs.org/ntsb/CHI93LA210.md): Beech B19 · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Jun 15, 1993 · N24674 · Substantial damage
  > The pilot's improper landing flare.
- [NTSB CHI93LA205](https://openairdocs.org/ntsb/CHI93LA205.md): Cessna 172P · Hartford, WI · Accident · No injuries · Limited investigation · Final report · Jun 14, 1993 · N55404 · Substantial damage
  > The failure of the number four cylinder and unsuitable terrain.
- [NTSB CHI93LA202](https://openairdocs.org/ntsb/CHI93LA202.md): Cessna 170B · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Jun 11, 1993 · N1932C · Substantial damage
  > The pilot in command's failure to maintain directional control of the aircraft.
- [NTSB CHI93LA201](https://openairdocs.org/ntsb/CHI93LA201.md): Bell 47G-2A-1 · Phlox, WI · Accident · 1 fatal · Limited investigation · Final report · Jun 11, 1993 · N73988 · Destroyed
  > Was the pilot in command's failure to maintain aircraft control. A factor to the accident was the inadequate cyclic control.
- [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 CHI93LA179](https://openairdocs.org/ntsb/CHI93LA179.md): Bell 47 · Berlin, WI · Accident · Minor injuries · Limited investigation · Final report · May 21, 1993 · N8458E · Destroyed
  > The pilot-in-command's failure to see the obstruction.
- [NTSB CHI93DEP01](https://openairdocs.org/ntsb/CHI93DEP01.md): Bryant Mustang II · Kenosha, WI · Accident · No injuries · Final report · May 16, 1993 · N90YP · Destroyed
  > The pilot-in-command's not maintaining control of the aircraft.
- [NTSB CHI93LA327](https://openairdocs.org/ntsb/CHI93LA327.md): British Aerospace ATP · Green Bay, WI · Accident · Serious injuries · Limited investigation · Final report · May 7, 1993 · N852AW · No damage
  > the passenger's loss of footing (miscellaneous).
- [NTSB CHI93LA163](https://openairdocs.org/ntsb/CHI93LA163.md): Cessna 150J · Rice Lake, WI · Accident · No injuries · Limited investigation · Final report · May 5, 1993 · N61306 · Substantial damage
  > The student pilot's failure to maintain directional control of the airplane.
- [NTSB CHI93FA158](https://openairdocs.org/ntsb/CHI93FA158.md): Beech E-18S · Lone Rock, WI · Accident · 1 fatal · Field investigation · Final report · May 4, 1993 · N80CB · Destroyed
  > was a pre-mature extension of the landing gear by the pilot which resulted in the inability of the pilot to maintain the minimum descent altitude. Factors related to the accident were the loose cylinder and loss of oil.
- [NTSB CHI93LA155](https://openairdocs.org/ntsb/CHI93LA155.md): Maule M5 · Green Bay, WI · Accident · No injuries · Limited investigation · Final report · Apr 30, 1993 · N5644D · Substantial damage
  > The pilot's failure to maintain control of the airplane.
- [NTSB CHI93LA150](https://openairdocs.org/ntsb/CHI93LA150.md): Cessna U206F · Oshkosh, WI · Accident · Minor injuries · Limited investigation · Final report · Apr 30, 1993 · N50963 · Substantial damage
  > Loss of engine power for an undetermined reason.
- [NTSB CHI93LA164](https://openairdocs.org/ntsb/CHI93LA164.md): Grumman TBM-3E · Spooner, WI · Accident · No injuries · Limited investigation · Final report · Apr 25, 1993 · N93818 · Substantial damage
  > The pilot's failure to maintain directional control.
- [NTSB CHI93LA144](https://openairdocs.org/ntsb/CHI93LA144.md): Piper PA-38 · Mineral Point, WI · Accident · No injuries · Limited investigation · Final report · Apr 21, 1993 · N2352R · Substantial damage
  > The pilot in command's failure to maintain directional control of the aircraft.
- [NTSB CHI93FAMS3](https://openairdocs.org/ntsb/CHI93FAMS3.md): Lake LA-4 · Superior, WI · Accident · 2 fatal · Missing aircraft · Final report · Apr 18, 1993 · N7608L · Destroyed
  > undetermined.
- [NTSB CHI93FA139](https://openairdocs.org/ntsb/CHI93FA139.md): Cessna 172I · Ettrick, WI · Accident · 2 fatal · Field investigation · Final report · Apr 18, 1993 · N8337L · Destroyed
  > An inflight explosion of a toluene-based fluid inside the airplane's cockpit.
- [NTSB CHI93IA140](https://openairdocs.org/ntsb/CHI93IA140.md): British Aerospace BAE-ATP · Oshkosh, WI · Incident · No injuries · Incident investigation · Final report · Apr 11, 1993 · N855AW · No damage
  > an inoperative engine nacelle anti-ice system, and ice ingestion.
- [NTSB CHI93LA130](https://openairdocs.org/ntsb/CHI93LA130.md): Beech B-55 · Green Bay, WI · Accident · No injuries · Limited investigation · Final report · Apr 4, 1993 · N4167P · Substantial damage
  > Improper replacement of the right wing by maintenance personnel which resulted in the vapor return lines being reversed, and the auxiliary tank vent to be disconnected.
- [NTSB CHI93LA122](https://openairdocs.org/ntsb/CHI93LA122.md): Piper PA-24-180 · Lyons, WI · Accident · Minor injuries · Limited investigation · Final report · Mar 29, 1993 · N7058P · Substantial damage
  > The pilot's use of an unsuitable runway.
- [NTSB CHI93LA097](https://openairdocs.org/ntsb/CHI93LA097.md): Piper PA-28-161 · Marshfield, WI · Accident · No injuries · Limited investigation · Final report · Feb 25, 1993 · N3044N · Substantial damage
  > The student pilot's failure to maintain aircraft directional control during the takeoff ground run.
- [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 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 CHI93LA067](https://openairdocs.org/ntsb/CHI93LA067.md): Piper PA-22-150 · La Pointe, WI · Accident · Minor injuries · Limited investigation · Final report · Jan 9, 1993 · N7057B · Substantial damage
  > Spatial disorientation of the pilot.
- [NTSB CHI93LA062](https://openairdocs.org/ntsb/CHI93LA062.md): Beech A36 · Milwaukee, WI · Accident · Minor injuries · Limited investigation · Final report · Jan 3, 1993 · N1801V · Substantial damage
  > Failure of the pilot to perform an aborted landing and failure to select a proper touchdown point on the runway.
- [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 CHI93LA045](https://openairdocs.org/ntsb/CHI93LA045.md): Beech 77 · Milwaukee, WI · Accident · Minor injuries · Limited investigation · Final report · Dec 1, 1992 · N6761E · Substantial damage
  > The pilot's failure to maintain a proper altitude.
- [NTSB CHI93LA040](https://openairdocs.org/ntsb/CHI93LA040.md): Cessna 401B · Rice Lake, WI · Accident · No injuries · Limited investigation · Final report · Nov 27, 1992 · N7989Q · Substantial damage
  > Improper rigging of the right main landing gear retract bellcrank by other maintenance personnel.

Next page: https://openairdocs.org/ntsb.md?state=WI&page=22

## 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=21&state=WI

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