# NTSB investigations: Lycoming 0-290 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.

## Latest cases

- [NTSB CEN25LA259](https://openairdocs.org/ntsb/CEN25LA259.md): Piper PA-20 · Oshkosh, WI · Accident · No injuries · Class 4 · Limited · Final report · Jul 18, 2025 · N7369K · Substantial damage
  > The pilot’s aggressive brake application which resulted in a loss of directional control and a ground loop.
- [NTSB CHI08FA222](https://openairdocs.org/ntsb/CHI08FA222.md): Piper PA-22 · Oshkosh, WI · Accident · Minor injuries · Field investigation · Final report · Jul 30, 2008 · N3671A · Substantial damage
  > The pilot's failure to maintain adequate airspeed while taking off in gusting winds, which resulted in an aerodynamic stall and subsequent loss of control.
- [NTSB CHI08CA207](https://openairdocs.org/ntsb/CHI08CA207.md): Tuth RV-3 · Oshkosh, WI · Accident · Minor injuries · Data collection · Final report · Jul 24, 2008 · N3149U · Substantial damage
  > The compensation for wind conditions disregarded by the pilot and the inadequate in-flight planning/decision making by the plot during approach to the destination airport. A contributing factor was the quartering tailwind.
- [NTSB CHI03LA308](https://openairdocs.org/ntsb/CHI03LA308.md): Piper PA-20 · Wausau, WI · Accident · No injuries · Limited investigation · Final report · Sep 8, 2003 · N5595H · Substantial damage
  > The excessive free play resulting in a loose tail wheel assembly and a failure of the flight crew to maintain directional control during the landing rollout.
- [NTSB CHI03LA127](https://openairdocs.org/ntsb/CHI03LA127.md): Piper PA-18-135 · Prescott, WI · Accident · Serious injuries · Limited investigation · Final report · May 15, 2003 · N2581A · Substantial damage
  > The pilot delaying the go-around and the maneuver to avoid the treeline. Factors to the accident were the treeline and the airplane's low altitude.
- [NTSB CHI02LA229](https://openairdocs.org/ntsb/CHI02LA229.md): Piper PA22-135 · Lyons, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 2, 2002 · N3522A · Substantial damage
  > Failure of the pilot to maintain a sufficient rate-of-climb and to obtain a safe altitude/clearance from the tree line at end of the runway. Contributing factors were the uphill runway gradient and the trees.
- [NTSB CHI02FA200](https://openairdocs.org/ntsb/CHI02FA200.md): Piper PA-20 · Oshkosh, WI · Accident · No injuries · Field investigation · Final report · Jul 21, 2002 · N1592A · Substantial damage
  > Inadequate visual lookout by both the accident pilot and the pilot of the other airplane. An additional cause is the arrival procedure used which resulted in a congested traffic pattern and the subsequent inadequate visual separation of the airplanes. Factors…
- [NTSB CHI99FA311](https://openairdocs.org/ntsb/CHI99FA311.md): Walker Breezy · Janesville, WI · Accident · 1 fatal · Field investigation · Final report · Aug 27, 1999 · N12BZ · Destroyed
  > the inadvertent stall. A factor relating to this accident was the pilot's excessive climb rate.
- [NTSB CHI98LA350](https://openairdocs.org/ntsb/CHI98LA350.md): Piper PA-22-108 · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Sep 17, 1998 · N4749Z · Substantial damage
  > the pilot's failure to land the airplane at a proper touchdown point on the runway. A factor was the excessive rate of descent which developed on final approach.
- [NTSB CHI94LA237](https://openairdocs.org/ntsb/CHI94LA237.md): Piper PA-18-135 · Butte Des Mort, WI · Accident · No injuries · Limited investigation · Final report · Jul 20, 1994 · N9843Q · Substantial damage
  > A delayed remedial action by the instructor. A factor in this accident was a proper airspeed not being attained by the dual student.
- [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 CHI86FEP06](https://openairdocs.org/ntsb/CHI86FEP06.md): Patton Pitts S-1C · Hartford, WI · Accident · No injuries · Final report · Jul 19, 1986 · N3507 · Substantial damage
  > The plt was on an aerobatic competition flt. He reported that after finishing a sequence of aerobatic maneuvers, he returned to the rwy to land. During the landing, the acft was high on final apch & touched down to FAR down the 2100 ft rwy. It then contd off…
- [NTSB CHI85LA297](https://openairdocs.org/ntsb/CHI85LA297.md): Piper PA-22 · Iola, WI · Accident · No injuries · Limited investigation · Final report · Jul 13, 1985 · N1487A · Substantial damage
  > Upon takeoff at approximately 100 ft AGL the pilot experienced a partial power loss which necessitated a forced landing in a soft, wet potato field. The pilot had time to switch fuel tanks and magnetos prior to touchdown, but the power loss remained constant.…
- [NTSB CHI80FEP40](https://openairdocs.org/ntsb/CHI80FEP40.md): Pitts S-1C · Wyocena, WI · Accident · No injuries · Closed · Jul 13, 1980 · N2761 · Substantial damage
- [NTSB CHI79FEP68](https://openairdocs.org/ntsb/CHI79FEP68.md): Bakeng Duce · Oskhosh, WI · Accident · No injuries · Closed · Jul 29, 1979 · N9659A · Substantial damage
- [NTSB CHI78FEP51](https://openairdocs.org/ntsb/CHI78FEP51.md): Piper PA-22 · Milwaukee, WI · Accident · No injuries · Closed · Jul 28, 1978 · N8195C · Substantial damage
- [NTSB CHI78DEP38](https://openairdocs.org/ntsb/CHI78DEP38.md): Piper PA-18 · Lake Winnebego, WI · Accident · No injuries · Closed · Jun 15, 1978 · N9843Q · Substantial damage
- [NTSB CHI77FA062](https://openairdocs.org/ntsb/CHI77FA062.md): Bellanca 7ACA · Oshkosh, WI · Accident · 1 fatal · Closed · Aug 1, 1977 · N12204 · 2 aircraft · Destroyed
- [NTSB CHI76DEP24](https://openairdocs.org/ntsb/CHI76DEP24.md): Piper PA-20 · Baraboo, WI · Accident · No injuries · Closed · Feb 8, 1976 · N7354K · Substantial damage
- [NTSB CHI76DEP22](https://openairdocs.org/ntsb/CHI76DEP22.md): Piper PA-22 · Rhinelander, WI · Accident · No injuries · Closed · Jan 15, 1976 · N3347A · Substantial damage
- [NTSB CHI75FER01](https://openairdocs.org/ntsb/CHI75FER01.md): Vollmer Sprts · Webster, WI · Accident · Minor injuries · Closed · Aug 3, 1974 · N4646T · Substantial damage
- [NTSB CHI72FEP37](https://openairdocs.org/ntsb/CHI72FEP37.md): Piper PA-20 · Twin Lakes, WI · Accident · No injuries · Closed · Apr 15, 1972 · N6978K · Substantial damage
- [NTSB CHI70D0012](https://openairdocs.org/ntsb/CHI70D0012.md): Piper PA-22 · Madison, WI · Accident · No injuries · Closed · Apr 18, 1969 · N3347A · Substantial damage
- [NTSB CHI69D0129](https://openairdocs.org/ntsb/CHI69D0129.md): Piper PA-22 · Neenah, WI · Accident · No injuries · Closed · Jul 7, 1968 · N2244A · Substantial damage
- [NTSB CHI66F0028](https://openairdocs.org/ntsb/CHI66F0028.md): Piper PA-20 · Cable, WI · Accident · No injuries · Closed · Mar 6, 1965 · N1145C · 2 aircraft · Substantial damage
- [NTSB CHI65F0041](https://openairdocs.org/ntsb/CHI65F0041.md): Aeronca 7HC · Watertown, WI · Accident · No injuries · Closed · Feb 27, 1965 · N9818Y · Substantial damage
- [NTSB UNK65X1343](https://openairdocs.org/ntsb/UNK65X1343.md): Piper PA-18 · Tustin, WI · Accident · Serious injuries · Closed · Jan 24, 1965 · N1021A · Destroyed
- [NTSB UNK65X1053](https://openairdocs.org/ntsb/UNK65X1053.md): Piper PA22 · Marshfield, WI · Accident · No injuries · Closed · Dec 19, 1964 · N940A · Substantial damage
- [NTSB UNK64X2610](https://openairdocs.org/ntsb/UNK64X2610.md): Piper PA18A · Waupun, WI · Accident · Serious injuries · Closed · Jul 2, 1964 · N8078C · Destroyed

## 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 ('41506'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41506&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.